2015-02-06 14:35:48 +00:00
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
// prcm.c
|
|
|
|
//
|
|
|
|
// Driver for the Power, Reset and Clock Module (PRCM)
|
|
|
|
//
|
|
|
|
// Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
|
|
|
|
//
|
|
|
|
//
|
|
|
|
// Redistribution and use in source and binary forms, with or without
|
|
|
|
// modification, are permitted provided that the following conditions
|
|
|
|
// are met:
|
|
|
|
//
|
|
|
|
// Redistributions of source code must retain the above copyright
|
|
|
|
// notice, this list of conditions and the following disclaimer.
|
|
|
|
//
|
|
|
|
// Redistributions in binary form must reproduce the above copyright
|
|
|
|
// notice, this list of conditions and the following disclaimer in the
|
|
|
|
// documentation and/or other materials provided with the
|
|
|
|
// distribution.
|
|
|
|
//
|
|
|
|
// Neither the name of Texas Instruments Incorporated nor the names of
|
|
|
|
// its contributors may be used to endorse or promote products derived
|
|
|
|
// from this software without specific prior written permission.
|
|
|
|
//
|
|
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! \addtogroup PRCM_Power_Reset_Clock_Module_api
|
|
|
|
//! @{
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
|
|
|
|
#include "inc/hw_types.h"
|
|
|
|
#include "inc/hw_ints.h"
|
|
|
|
#include "inc/hw_memmap.h"
|
|
|
|
#include "inc/hw_apps_rcm.h"
|
|
|
|
#include "inc/hw_gprcm.h"
|
|
|
|
#include "inc/hw_hib1p2.h"
|
|
|
|
#include "inc/hw_hib3p3.h"
|
|
|
|
#include "prcm.h"
|
|
|
|
#include "interrupt.h"
|
|
|
|
#include "cpu.h"
|
|
|
|
#include "utils.h"
|
|
|
|
#include "rom_map.h"
|
|
|
|
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
// Macro definition
|
|
|
|
//*****************************************************************************
|
|
|
|
#define PRCM_SOFT_RESET 0x00000001
|
|
|
|
#define PRCM_ENABLE_STATUS 0x00000002
|
|
|
|
#define SYS_CLK 80000000
|
|
|
|
#define XTAL_CLK 40000000
|
|
|
|
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
// CC3200 does not have a true RTC capability. However, API(s) in this file
|
|
|
|
// provide an effective mechanism to support RTC feature in the device.
|
|
|
|
//
|
|
|
|
// The implementation to support RTC has been kept very simple. A set of
|
|
|
|
// HIB Memory Registers in conjunction with Slow Clock Counter are used
|
|
|
|
// to render RTC information to users. Core principle of design involves
|
|
|
|
// two steps (a) establish an association between user provided wall-clock
|
|
|
|
// and slow clock counter. (b) store reference value of this associattion
|
|
|
|
// in HIB Registers. This reference value and SCC value are then combined
|
|
|
|
// to create real-world calendar time.
|
|
|
|
//
|
|
|
|
// Across HIB cycles, value stored in HIB Registers is retained and slow
|
|
|
|
// clock counter continues to tick, thereby, this arragement is relevant
|
|
|
|
// and valid as long as device has a (tickle) battery power.
|
|
|
|
//
|
|
|
|
// Further, provision also has been made to set an alarm. When it RTC value
|
|
|
|
// matches that of set for alarm, an interrupt is generated.
|
|
|
|
//
|
|
|
|
// HIB MEM REG0 and REG1 are reserved for TI.
|
|
|
|
//
|
|
|
|
// If RTC feature is not used, then HIB REG2 & REG3 are available to user.
|
|
|
|
//
|
|
|
|
// Lower half of REG0 is used for TI HW ECO.
|
|
|
|
//*****************************************************************************
|
|
|
|
#define RTC_U64MSEC_MK(u32Secs, u16Msec) (((unsigned long long)u32Secs << 10)|\
|
|
|
|
(u16Msec & 0x3FF))
|
|
|
|
|
|
|
|
#define RTC_SECS_IN_U64MSEC(u64Msec) ((unsigned long)(u64Msec >> 10))
|
|
|
|
#define RTC_MSEC_IN_U64MSEC(u64Msec) ((unsigned short)(u64Msec & 0x3FF))
|
|
|
|
|
2015-03-14 08:59:47 +00:00
|
|
|
#define RTC_MSEC_U32_REG_ADDR (HIB3P3_BASE + HIB3P3_O_MEM_HIB_REG2)
|
2015-02-06 14:35:48 +00:00
|
|
|
#define RTC_SECS_U32_REG_ADDR (HIB3P3_BASE + HIB3P3_O_MEM_HIB_REG3)
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
// Register Access and Updates
|
|
|
|
//
|
2015-03-15 09:05:15 +00:00
|
|
|
// Tick of SCC has a resolution of 32768Hz, meaning 1 sec is equal to 32768
|
|
|
|
// clock ticks. Ideal way of getting time in millisecond will involve floating
|
|
|
|
// point arithmetic (division by 32.768). To avoid this, we simply divide it by
|
|
|
|
// 32, which will give a range from 0 -1023(instead of 0-999). To use this
|
|
|
|
// output correctly we have to take care of this inaccuracy externally.
|
|
|
|
// following wrapper can be used to convert the value from cycles to
|
|
|
|
// millisecond:
|
|
|
|
//
|
|
|
|
// CYCLES_U16MS(cycles) ((cycles *1000)/ 1024),
|
|
|
|
//
|
|
|
|
// Similarly, before setting the value, it must be first converted (from ms to
|
|
|
|
// cycles).
|
|
|
|
//
|
|
|
|
// U16MS_CYCLES(msec) ((msec *1024)/1000)
|
|
|
|
//
|
|
|
|
// Note: There is a precision loss of 1 ms with the above scheme.
|
|
|
|
//
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
#define SCC_U64MSEC_GET() (MAP_PRCMSlowClkCtrGet() >> 5)
|
|
|
|
#define SCC_U64MSEC_MATCH_SET(u64Msec) (MAP_PRCMSlowClkCtrMatchSet(u64Msec << 5))
|
|
|
|
#define SCC_U64MSEC_MATCH_GET() (MAP_PRCMSlowClkCtrMatchGet() >> 5)
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
// Bit: 31 is used to indicate use of RTC. If set as '1', RTC feature is used.
|
2015-03-14 08:59:47 +00:00
|
|
|
// Bit: 30 is used to indicate that a safe boot should be performed
|
|
|
|
// bit: 29 is used to indicate that the last reset was caused by the WDT
|
|
|
|
// Bits: 28 to 26 are unused
|
2015-02-06 14:35:48 +00:00
|
|
|
// Bits: 25 to 16 are used to save millisecond part of RTC reference.
|
|
|
|
// Bits: 15 to 0 are being used for HW Changes / ECO
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
// Set RTC USE Bit
|
|
|
|
//*****************************************************************************
|
|
|
|
static void RTCUseSet(void)
|
|
|
|
{
|
|
|
|
unsigned short usRegValue;
|
|
|
|
|
2015-03-14 08:59:47 +00:00
|
|
|
usRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) | (1 << 31);
|
2015-02-06 14:35:48 +00:00
|
|
|
|
2015-03-14 08:59:47 +00:00
|
|
|
PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, usRegValue);
|
2015-02-06 14:35:48 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
// Clear RTC USE Bit
|
2015-02-06 14:35:48 +00:00
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
static void RTCUseClear(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
unsigned short usRegValue;
|
|
|
|
|
2015-03-14 08:59:47 +00:00
|
|
|
usRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (~(1 << 31));
|
2015-02-06 14:35:48 +00:00
|
|
|
|
2015-03-14 08:59:47 +00:00
|
|
|
PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, usRegValue);
|
|
|
|
}
|
2015-02-06 14:35:48 +00:00
|
|
|
|
2015-03-14 08:59:47 +00:00
|
|
|
//*****************************************************************************
|
|
|
|
// Checks if RTC-USE bit is set
|
|
|
|
//*****************************************************************************
|
|
|
|
static tBoolean IsRTCUsed(void)
|
|
|
|
{
|
|
|
|
return (MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (1 << 31)) ? true : false;
|
2015-02-06 14:35:48 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
// Read 16-bit mSecs
|
|
|
|
//*****************************************************************************
|
|
|
|
static unsigned short RTCU16MSecRegRead(void)
|
|
|
|
{
|
2015-03-14 08:59:47 +00:00
|
|
|
return ((MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) >> 16) & 0x03FF);
|
2015-02-06 14:35:48 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
// Write 16-bit mSecs
|
|
|
|
//*****************************************************************************
|
|
|
|
static void RTCU16MSecRegWrite(unsigned short u16Msec)
|
|
|
|
{
|
|
|
|
unsigned short usRegValue;
|
|
|
|
|
2015-03-14 08:59:47 +00:00
|
|
|
// read the whole register and clear the msec bits
|
|
|
|
usRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (~(0x03FF << 16));
|
2015-02-06 14:35:48 +00:00
|
|
|
|
2015-03-14 08:59:47 +00:00
|
|
|
// write the msec bits only
|
|
|
|
MAP_PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, usRegValue | ((u16Msec & 0x03FF) << 16));
|
2015-02-06 14:35:48 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
// Read 32-bit Secs
|
|
|
|
//*****************************************************************************
|
|
|
|
static unsigned long RTCU32SecRegRead(void)
|
|
|
|
{
|
2015-03-14 08:59:47 +00:00
|
|
|
return (MAP_PRCMHIBRegRead(RTC_SECS_U32_REG_ADDR));
|
2015-02-06 14:35:48 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
// Write 32-bit Secs
|
|
|
|
//*****************************************************************************
|
|
|
|
static void RTCU32SecRegWrite(unsigned long u32Msec)
|
|
|
|
{
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(RTC_SECS_U32_REG_ADDR, u32Msec);
|
2015-02-06 14:35:48 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
// Macros
|
|
|
|
//*****************************************************************************
|
|
|
|
#define IS_RTC_USED() IsRTCUsed()
|
|
|
|
#define RTC_USE_SET() RTCUseSet()
|
2015-03-14 08:59:47 +00:00
|
|
|
#define RTC_USE_CLR() RTCUseClear()
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
#define RTC_U16MSEC_REG_RD() RTCU16MSecRegRead()
|
|
|
|
#define RTC_U16MSEC_REG_WR(u16Msec) RTCU16MSecRegWrite(u16Msec)
|
|
|
|
|
|
|
|
#define RTC_U32SECS_REG_RD() RTCU32SecRegRead()
|
|
|
|
#define RTC_U32SECS_REG_WR(u32Secs) RTCU32SecRegWrite(u32Secs)
|
|
|
|
|
|
|
|
#define SELECT_SCC_U42BITS(u64Msec) (u64Msec & 0x3ffffffffff)
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
// Global Peripheral clock and rest Registers
|
|
|
|
//*****************************************************************************
|
|
|
|
static const PRCM_PeriphRegs_t PRCM_PeriphRegsList[] =
|
|
|
|
{
|
|
|
|
|
|
|
|
{APPS_RCM_O_CAMERA_CLK_GATING, APPS_RCM_O_CAMERA_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_MCASP_CLK_GATING, APPS_RCM_O_MCASP_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_MMCHS_CLK_GATING, APPS_RCM_O_MMCHS_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_MCSPI_A1_CLK_GATING, APPS_RCM_O_MCSPI_A1_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_MCSPI_A2_CLK_GATING, APPS_RCM_O_MCSPI_A2_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_UDMA_A_CLK_GATING, APPS_RCM_O_UDMA_A_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_GPIO_A_CLK_GATING, APPS_RCM_O_GPIO_A_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_GPIO_B_CLK_GATING, APPS_RCM_O_GPIO_B_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_GPIO_C_CLK_GATING, APPS_RCM_O_GPIO_C_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_GPIO_D_CLK_GATING, APPS_RCM_O_GPIO_D_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_GPIO_E_CLK_GATING, APPS_RCM_O_GPIO_E_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_WDOG_A_CLK_GATING, APPS_RCM_O_WDOG_A_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_UART_A0_CLK_GATING, APPS_RCM_O_UART_A0_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_UART_A1_CLK_GATING, APPS_RCM_O_UART_A1_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_GPT_A0_CLK_GATING , APPS_RCM_O_GPT_A0_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_GPT_A1_CLK_GATING, APPS_RCM_O_GPT_A1_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_GPT_A2_CLK_GATING, APPS_RCM_O_GPT_A2_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_GPT_A3_CLK_GATING, APPS_RCM_O_GPT_A3_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_CRYPTO_CLK_GATING, APPS_RCM_O_CRYPTO_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_MCSPI_S0_CLK_GATING, APPS_RCM_O_MCSPI_S0_SOFT_RESET },
|
|
|
|
{APPS_RCM_O_I2C_CLK_GATING, APPS_RCM_O_I2C_SOFT_RESET }
|
|
|
|
|
|
|
|
};
|
|
|
|
|
2015-03-14 08:59:47 +00:00
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Requests a safe boot
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMRequestSafeBoot(void)
|
|
|
|
{
|
|
|
|
unsigned short usRegValue;
|
|
|
|
|
|
|
|
usRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) | (1 << 30);
|
|
|
|
|
|
|
|
PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, usRegValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Clear the safe boot request
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMClearSafeBootRequest(void)
|
|
|
|
{
|
|
|
|
unsigned short usRegValue;
|
|
|
|
|
|
|
|
usRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (~(1 << 30));
|
|
|
|
|
|
|
|
PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, usRegValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Read the safe boot request bit. This bit is cleared after reading.
|
|
|
|
//!
|
|
|
|
//! \return Value of the safe boot bit
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
tBoolean PRCMIsSafeBootRequested(void)
|
|
|
|
{
|
|
|
|
tBoolean safeboot = (MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (1 << 30)) ? true : false;
|
|
|
|
|
|
|
|
PRCMClearSafeBootRequest();
|
|
|
|
|
|
|
|
return safeboot;
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Signals that a WDT reset has occurred
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMSignalWDTReset(void)
|
|
|
|
{
|
|
|
|
unsigned short usRegValue;
|
|
|
|
|
|
|
|
usRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) | (1 << 29);
|
|
|
|
|
|
|
|
PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, usRegValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Clear the WDT reset signal
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMClearWDTResetSignal(void)
|
|
|
|
{
|
|
|
|
unsigned short usRegValue;
|
|
|
|
|
|
|
|
usRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (~(1 << 29));
|
|
|
|
|
|
|
|
PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, usRegValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Read the WDT reset signal bit
|
|
|
|
//!
|
|
|
|
//! \return Value of the WDT reset signal bit
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
tBoolean PRCMWasResetBecauseOfWDT(void)
|
|
|
|
{
|
|
|
|
return (MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (1 << 29)) ? true : false;
|
|
|
|
}
|
|
|
|
|
2015-02-06 14:35:48 +00:00
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Performs a software reset of a SOC
|
|
|
|
//!
|
|
|
|
//! This function performs a software reset of a SOC
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMSOCReset(void)
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Reset MCU
|
|
|
|
//
|
|
|
|
HWREG(GPRCM_BASE+ GPRCM_O_MCU_GLOBAL_SOFT_RESET) |= 0x1;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Performs a software reset of a MCU and associated peripherals
|
|
|
|
//!
|
|
|
|
//! \param bIncludeSubsystem is \b true to reset associated peripherals.
|
|
|
|
//!
|
|
|
|
//! This function performs a software reset of a MCU and associated peripherals.
|
|
|
|
//! To reset the associated peripheral, the parameter \e bIncludeSubsystem
|
|
|
|
//! should be set to \b true.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMMCUReset(tBoolean bIncludeSubsystem)
|
|
|
|
{
|
|
|
|
if(bIncludeSubsystem)
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Reset Apps processor and associated peripheral
|
|
|
|
//
|
|
|
|
HWREG(GPRCM_BASE+ GPRCM_O_APPS_SOFT_RESET) = 0x2;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Reset Apps processor only
|
|
|
|
//
|
|
|
|
HWREG(GPRCM_BASE+ GPRCM_O_APPS_SOFT_RESET) = 0x1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Gets the reason for a reset.
|
|
|
|
//!
|
|
|
|
//! This function returns the reason(s) for a reset. The reset reason are:-
|
|
|
|
//! -\b PRCM_POWER_ON - Device is powering up.
|
|
|
|
//! -\b PRCM_LPDS_EXIT - Device is exiting from LPDS.
|
|
|
|
//! -\b PRCM_CORE_RESET - Device is exiting soft core only reset
|
|
|
|
//! -\b PRCM_MCU_RESET - Device is exiting soft subsystem reset.
|
|
|
|
//! -\b PRCM_WDT_RESET - Device was reset by watchdog.
|
|
|
|
//! -\b PRCM_SOC_RESET - Device is exting SOC reset.
|
|
|
|
//! -\b PRCM_HIB_EXIT - Device is exiting hibernate.
|
|
|
|
//!
|
|
|
|
//! \return Returns one of the cause defined above.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
unsigned long PRCMSysResetCauseGet(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
unsigned long ulWakeupStatus;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Read the Reset status
|
|
|
|
//
|
|
|
|
ulWakeupStatus = (HWREG(GPRCM_BASE+ GPRCM_O_APPS_RESET_CAUSE) & 0xFF);
|
|
|
|
|
|
|
|
//
|
|
|
|
// For hibernate do additional chaeck.
|
|
|
|
//
|
|
|
|
if(ulWakeupStatus == PRCM_POWER_ON)
|
|
|
|
{
|
2015-03-14 08:59:47 +00:00
|
|
|
if(MAP_PRCMHIBRegRead(HIB3P3_BASE + HIB3P3_O_MEM_HIB_WAKE_STATUS) & 0x1)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
ulWakeupStatus = PRCM_HIB_EXIT;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//
|
|
|
|
// Return status.
|
|
|
|
//
|
|
|
|
return ulWakeupStatus;
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Enable clock(s) to peripheral.
|
|
|
|
//!
|
|
|
|
//! \param ulPeripheral is one of the valid peripherals
|
|
|
|
//! \param ulClkFlags are bitmask of clock(s) to be enabled.
|
|
|
|
//!
|
|
|
|
//! This function enables the clock for the specified peripheral. Peripherals
|
|
|
|
//! are by default clock gated (disabled) and generates a bus fault if
|
|
|
|
//! accessed.
|
|
|
|
//!
|
|
|
|
//! The parameter \e ulClkFlags can be logical OR of the following:
|
|
|
|
//! -\b PRCM_RUN_MODE_CLK - Ungates clock to the peripheral
|
|
|
|
//! -\b PRCM_SLP_MODE_CLK - Keeps the clocks ungated in sleep.
|
|
|
|
//! -\b PRCM_DSLP_MODE_CLK - Keeps the clock ungated in deepsleep.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMPeripheralClkEnable(unsigned long ulPeripheral, unsigned long ulClkFlags)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
//
|
|
|
|
// Enable the specified peripheral clocks, Nothing to be done for PRCM_ADC
|
|
|
|
// as it is a dummy define for pinmux utility code generation
|
|
|
|
//
|
|
|
|
if(ulPeripheral != PRCM_ADC)
|
|
|
|
{
|
|
|
|
HWREG(ARCM_BASE + PRCM_PeriphRegsList[ulPeripheral].ulClkReg) |= ulClkFlags;
|
|
|
|
}
|
|
|
|
//
|
|
|
|
// Set the default clock for camera
|
|
|
|
//
|
|
|
|
if(ulPeripheral == PRCM_CAMERA)
|
|
|
|
{
|
|
|
|
HWREG(ARCM_BASE + APPS_RCM_O_CAMERA_CLK_GEN) = 0x0404;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Disables clock(s) to peripheral.
|
|
|
|
//!
|
|
|
|
//! \param ulPeripheral is one of the valid peripherals
|
|
|
|
//! \param ulClkFlags are bitmask of clock(s) to be enabled.
|
|
|
|
//!
|
|
|
|
//! This function disable the clock for the specified peripheral. Peripherals
|
|
|
|
//! are by default clock gated (disabled) and generated a bus fault if
|
|
|
|
//! accessed.
|
|
|
|
//!
|
|
|
|
//! The parameter \e ulClkFlags can be logical OR bit fields as defined in
|
|
|
|
//! PRCMEnablePeripheral().
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMPeripheralClkDisable(unsigned long ulPeripheral, unsigned long ulClkFlags)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
//
|
|
|
|
// Disable the specified peripheral clocks
|
|
|
|
//
|
|
|
|
HWREG(ARCM_BASE + PRCM_PeriphRegsList[ulPeripheral].ulClkReg) &= ~ulClkFlags;
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Gets the input clock for the specified peripheral.
|
|
|
|
//!
|
|
|
|
//! \param ulPeripheral is one of the valid peripherals.
|
|
|
|
//!
|
|
|
|
//! This function gets the input clock for the specified peripheral.
|
|
|
|
//!
|
|
|
|
//! The parameter \e ulPeripheral has the same definition as that in
|
|
|
|
//! PRCMPeripheralClkEnable();
|
|
|
|
//!
|
|
|
|
//! \return Returns input clock frequency for specified peripheral.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
unsigned long PRCMPeripheralClockGet(unsigned long ulPeripheral)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
unsigned long ulClockFreq;
|
|
|
|
unsigned long ulHiPulseDiv;
|
|
|
|
unsigned long ulLoPulseDiv;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Get the clock based on specified peripheral.
|
|
|
|
//
|
|
|
|
if(((ulPeripheral == PRCM_SSPI) | (ulPeripheral == PRCM_LSPI)
|
|
|
|
| (ulPeripheral == PRCM_GSPI)))
|
|
|
|
{
|
|
|
|
return XTAL_CLK;
|
|
|
|
}
|
|
|
|
else if(ulPeripheral == PRCM_CAMERA)
|
|
|
|
{
|
|
|
|
ulHiPulseDiv = ((HWREG(ARCM_BASE + APPS_RCM_O_CAMERA_CLK_GEN) >> 8) & 0x07);
|
|
|
|
ulLoPulseDiv = (HWREG(ARCM_BASE + APPS_RCM_O_CAMERA_CLK_GEN)& 0xFF);
|
|
|
|
}
|
|
|
|
else if(ulPeripheral == PRCM_SDHOST)
|
|
|
|
{
|
|
|
|
ulHiPulseDiv = ((HWREG(ARCM_BASE + APPS_RCM_O_MMCHS_CLK_GEN) >> 8) & 0x07);
|
|
|
|
ulLoPulseDiv = (HWREG(ARCM_BASE + APPS_RCM_O_MMCHS_CLK_GEN)& 0xFF);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
return SYS_CLK;
|
|
|
|
}
|
|
|
|
|
|
|
|
//
|
|
|
|
// Compute the clock freq. from the divider value
|
|
|
|
//
|
|
|
|
ulClockFreq = (240000000/((ulHiPulseDiv + 1) + (ulLoPulseDiv + 1)));
|
|
|
|
|
|
|
|
//
|
|
|
|
// Return the clock rate.
|
|
|
|
//
|
|
|
|
return ulClockFreq;
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Performs a software reset of a peripheral.
|
|
|
|
//!
|
|
|
|
//! \param ulPeripheral is one of the valid peripheral.
|
|
|
|
//!
|
|
|
|
//! This assert or deassert reset to the specified peripheral based of the
|
|
|
|
//! \e bAssert parameter.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMPeripheralReset(unsigned long ulPeripheral)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
volatile unsigned long ulDelay;
|
|
|
|
|
|
|
|
if( ulPeripheral != PRCM_DTHE)
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Assert the reset
|
|
|
|
//
|
|
|
|
HWREG(ARCM_BASE + PRCM_PeriphRegsList[ulPeripheral].ulRstReg)
|
|
|
|
|= PRCM_SOFT_RESET;
|
|
|
|
//
|
|
|
|
// Delay for a little bit.
|
|
|
|
//
|
|
|
|
for(ulDelay = 0; ulDelay < 16; ulDelay++)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
//
|
|
|
|
// Deassert the reset
|
|
|
|
//
|
|
|
|
HWREG(ARCM_BASE+PRCM_PeriphRegsList[ulPeripheral].ulRstReg)
|
|
|
|
&= ~PRCM_SOFT_RESET;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Determines if a peripheral is ready.
|
|
|
|
//!
|
|
|
|
//! \param ulPeripheral is one of the valid modules
|
|
|
|
//!
|
|
|
|
//! This function determines if a particular peripheral is ready to be
|
|
|
|
//! accessed. The peripheral may be in a non-ready state if it is not enabled,
|
|
|
|
//! is being held in reset, or is in the process of becoming ready after being
|
|
|
|
//! enabled or taken out of reset.
|
|
|
|
//!
|
|
|
|
//! \return Returns \b true if the peripheral is ready, \b false otherwise.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
tBoolean PRCMPeripheralStatusGet(unsigned long ulPeripheral)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
unsigned long ReadyBit;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Read the ready bit status
|
|
|
|
//
|
|
|
|
ReadyBit = HWREG(ARCM_BASE + PRCM_PeriphRegsList[ulPeripheral].ulRstReg);
|
|
|
|
ReadyBit = ReadyBit & PRCM_ENABLE_STATUS;
|
|
|
|
|
|
|
|
if (ReadyBit)
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Module is ready
|
|
|
|
//
|
|
|
|
return(true);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Module is not ready
|
|
|
|
//
|
|
|
|
return(false);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Configure I2S fracactional divider
|
|
|
|
//!
|
|
|
|
//! \param ulI2CClkFreq is the required input clock for McAPS module
|
|
|
|
//!
|
|
|
|
//! This function configures I2S fractional divider. By default this
|
|
|
|
//! divider is set to output 24 Mhz clock to I2S module.
|
|
|
|
//!
|
|
|
|
//! The minimum frequency that can be obtained by configuring this divider is
|
|
|
|
//!
|
|
|
|
//! (240000KHz/1023.99) = 234.377 KHz
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMI2SClockFreqSet(unsigned long ulI2CClkFreq)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
unsigned long long ullDiv;
|
|
|
|
unsigned short usInteger;
|
|
|
|
unsigned short usFrac;
|
|
|
|
|
|
|
|
ullDiv = (((unsigned long long)240000000 * 65536)/ulI2CClkFreq);
|
|
|
|
|
|
|
|
usInteger = (ullDiv/65536);
|
|
|
|
usFrac = (ullDiv%65536);
|
|
|
|
|
|
|
|
HWREG(ARCM_BASE + APPS_RCM_O_MCASP_FRAC_CLK_CONFIG0) =
|
|
|
|
((usInteger & 0x3FF) << 16 | usFrac);
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Sets the LPDS exit PC and SP restore vlaues.
|
|
|
|
//!
|
|
|
|
//! \param ulStackPtr is the SP restore value.
|
|
|
|
//! \param ulProgCntr is the PC restore value
|
|
|
|
//!
|
|
|
|
//! This function sets the LPDS exit PC and SP restore vlaues. Setting
|
|
|
|
//! \e ulProgCntr to a non-zero value, forces bootloader to jump to that
|
|
|
|
//! address with Stack Pointer initialized to \e ulStackPtr on LPDS exit,
|
|
|
|
//! otherwise the application's vector table entries are used.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMLPDSRestoreInfoSet(unsigned long ulStackPtr, unsigned long ulProgCntr)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
//
|
|
|
|
// Set The SP Value
|
|
|
|
//
|
|
|
|
HWREG(0x4402E18C) = ulStackPtr;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Set The PC Value
|
|
|
|
//
|
|
|
|
HWREG(0x4402E190) = ulProgCntr;
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Puts the system into Low Power Deel Sleep (LPDS) power mode.
|
|
|
|
//!
|
|
|
|
//! This function puts the system into Low Power Deel Sleep (LPDS) power mode.
|
|
|
|
//! A call to this function never returns and the execution starts from Reset.
|
|
|
|
//! \sa PRCMLPDSRestoreInfoSet().
|
|
|
|
//!
|
|
|
|
//! \return None.
|
2015-03-15 09:05:15 +00:00
|
|
|
//!
|
|
|
|
//! \note The Test Power Domain is shutdown whenever the system
|
|
|
|
//! enters LPDS (by default). In order to avoid this and allow for
|
|
|
|
//! connecting back the debugger after waking up from LPDS,
|
|
|
|
//! the macro KEEP_TESTPD_ALIVE has to be defined while building the library.
|
|
|
|
//! This is recommended for development purposes only as it adds to
|
|
|
|
//! the current consumption of the system.
|
|
|
|
//!
|
2015-02-06 14:35:48 +00:00
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMLPDSEnter(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
2015-03-15 09:05:15 +00:00
|
|
|
#ifndef DEBUG
|
2015-02-06 14:35:48 +00:00
|
|
|
//
|
|
|
|
// Disable TestPD
|
|
|
|
//
|
|
|
|
HWREG(0x4402E168) |= (1<<9);
|
2015-03-15 09:05:15 +00:00
|
|
|
#endif
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
//
|
|
|
|
// Set bandgap duty cycle to 1
|
|
|
|
//
|
|
|
|
HWREG(HIB1P2_BASE + HIB1P2_O_BGAP_DUTY_CYCLING_EXIT_CFG) = 0x1;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Request LPDS
|
|
|
|
//
|
2015-03-15 09:05:15 +00:00
|
|
|
HWREG(ARCM_BASE + APPS_RCM_O_APPS_LPDS_REQ) = APPS_RCM_APPS_LPDS_REQ_APPS_LPDS_REQ;
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
__asm(" nop\n"
|
|
|
|
" nop\n"
|
|
|
|
" nop\n"
|
|
|
|
" nop\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Enable the individual LPDS wakeup source(s).
|
|
|
|
//!
|
|
|
|
//! \param ulLpdsWakeupSrc is logical OR of wakeup sources.
|
|
|
|
//!
|
|
|
|
//! This function enable the individual LPDS wakeup source(s) and following
|
|
|
|
//! three wakeup sources (\e ulLpdsWakeupSrc ) are supported by the device.
|
|
|
|
//! -\b PRCM_LPDS_HOST_IRQ
|
|
|
|
//! -\b PRCM_LPDS_GPIO
|
|
|
|
//! -\b PRCM_LPDS_TIMER
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMLPDSWakeupSourceEnable(unsigned long ulLpdsWakeupSrc)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
unsigned long ulRegVal;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Read the current wakup sources
|
|
|
|
//
|
|
|
|
ulRegVal = HWREG(GPRCM_BASE+ GPRCM_O_APPS_LPDS_WAKEUP_CFG);
|
|
|
|
|
|
|
|
//
|
|
|
|
// Enable individual wakeup source
|
|
|
|
//
|
|
|
|
ulRegVal = ((ulRegVal | ulLpdsWakeupSrc) & 0x91);
|
|
|
|
|
|
|
|
//
|
|
|
|
// Set the configuration in the register
|
|
|
|
//
|
|
|
|
HWREG(GPRCM_BASE+ GPRCM_O_APPS_LPDS_WAKEUP_CFG) = ulRegVal;
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Disable the individual LPDS wakeup source(s).
|
|
|
|
//!
|
|
|
|
//! \param ulLpdsWakeupSrc is logical OR of wakeup sources.
|
|
|
|
//!
|
|
|
|
//! This function enable the individual LPDS wakeup source(s) and following
|
|
|
|
//! three wake up sources (\e ulLpdsWakeupSrc ) are supported by the device.
|
|
|
|
//! -\b PRCM_LPDS_HOST_IRQ
|
|
|
|
//! -\b PRCM_LPDS_GPIO
|
|
|
|
//! -\b PRCM_LPDS_TIMER
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMLPDSWakeupSourceDisable(unsigned long ulLpdsWakeupSrc)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
HWREG(GPRCM_BASE+ GPRCM_O_APPS_LPDS_WAKEUP_CFG) &= ~ulLpdsWakeupSrc;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Get LPDS wakeup cause
|
|
|
|
//!
|
|
|
|
//! This function gets LPDS wakeup caouse
|
|
|
|
//!
|
|
|
|
//! \return Returns values enumerated as described in
|
|
|
|
//! PRCMLPDSWakeupSourceEnable().
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
unsigned long PRCMLPDSWakeupCauseGet(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
return (HWREG(GPRCM_BASE+ GPRCM_O_APPS_LPDS_WAKEUP_SRC));
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Sets LPDS wakeup Timer
|
|
|
|
//!
|
|
|
|
//! \param ulTicks is number of 32.768 KHz clocks
|
|
|
|
//!
|
|
|
|
//! This function sets internal LPDS wakeup timer running at 32.768 KHz. The
|
|
|
|
//! timer is only configured if the parameter \e ulTicks is in valid range i.e.
|
|
|
|
//! from 21 to 2^32.
|
|
|
|
//!
|
|
|
|
//! \return Returns \b true on success, \b false otherwise.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMLPDSIntervalSet(unsigned long ulTicks)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
//
|
|
|
|
// Check sleep is atleast for 21 cycles
|
|
|
|
// If not set the sleep time to 21 cycles
|
|
|
|
//
|
|
|
|
if( ulTicks < 21)
|
|
|
|
{
|
|
|
|
ulTicks = 21;
|
|
|
|
}
|
|
|
|
|
|
|
|
HWREG(GPRCM_BASE + GPRCM_O_APPS_LPDS_WAKETIME_WAKE_CFG) = ulTicks;
|
|
|
|
HWREG(GPRCM_BASE + GPRCM_O_APPS_LPDS_WAKETIME_OPP_CFG) = ulTicks-20;
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Selects the GPIO for LPDS wakeup
|
|
|
|
//!
|
|
|
|
//! \param ulGPIOPin is one of the valid GPIO fro LPDS wakeup.
|
|
|
|
//! \param ulType is the wakeup trigger type.
|
|
|
|
//!
|
|
|
|
//! This function setects the wakeup GPIO for LPDS wakeup and can be
|
|
|
|
//! used to select one out of 7 pre-defined GPIO(s).
|
|
|
|
//!
|
|
|
|
//! The parameter \e ulLpdsGPIOSel should be one of the following:-
|
|
|
|
//! -\b PRCM_LPDS_GPIO2
|
|
|
|
//! -\b PRCM_LPDS_GPIO4
|
|
|
|
//! -\b PRCM_LPDS_GPIO13
|
|
|
|
//! -\b PRCM_LPDS_GPIO17
|
|
|
|
//! -\b PRCM_LPDS_GPIO11
|
|
|
|
//! -\b PRCM_LPDS_GPIO24
|
|
|
|
//! -\b PRCM_LPDS_GPIO26
|
|
|
|
//!
|
|
|
|
//! The parameter \e ulType sets the trigger type and can be one of the
|
|
|
|
//! following:
|
|
|
|
//! - \b PRCM_LPDS_LOW_LEVEL
|
|
|
|
//! - \b PRCM_LPDS_HIGH_LEVEL
|
|
|
|
//! - \b PRCM_LPDS_FALL_EDGE
|
|
|
|
//! - \b PRCM_LPDS_RISE_EDGE
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMLPDSWakeUpGPIOSelect(unsigned long ulGPIOPin, unsigned long ulType)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
//
|
|
|
|
// Set the wakeup GPIO
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE + HIB3P3_O_MEM_HIB_LPDS_GPIO_SEL, ulGPIOPin);
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
//
|
|
|
|
// Set the trigger type.
|
|
|
|
//
|
|
|
|
HWREG(GPRCM_BASE + GPRCM_O_APPS_GPIO_WAKE_CONF) = (ulType & 0x3);
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Puts the system into Sleep.
|
|
|
|
//!
|
|
|
|
//! This function puts the system into sleep power mode. System exits the power
|
|
|
|
//! state on any one of the available interrupt. On exit from sleep mode the
|
|
|
|
//! function returns to the calling function with all the processor core
|
|
|
|
//! registers retained.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMSleepEnter(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
//
|
|
|
|
// Request Sleep
|
|
|
|
//
|
|
|
|
CPUwfi();
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Puts the system into Deep Sleep power mode.
|
|
|
|
//!
|
|
|
|
//! This function puts the system into Deep Sleep power mode. System exits the
|
|
|
|
//! power state on any one of the available interrupt. On exit from deep
|
|
|
|
//! sleep the function returns to the calling function with all the processor
|
|
|
|
//! core registers retained.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMDeepSleepEnter(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
//
|
|
|
|
// Set bandgap duty cycle to 1
|
|
|
|
//
|
|
|
|
HWREG(HIB1P2_BASE + HIB1P2_O_BGAP_DUTY_CYCLING_EXIT_CFG) = 0x1;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Enable DSLP in cortex
|
|
|
|
//
|
|
|
|
HWREG(0xE000ED10)|=1<<2;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Request Deep Sleep
|
|
|
|
//
|
|
|
|
CPUwfi();
|
|
|
|
|
|
|
|
//
|
|
|
|
// Disable DSLP in cortex before
|
|
|
|
// returning to the caller
|
|
|
|
//
|
|
|
|
HWREG(0xE000ED10) &= ~(1<<2);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Enable SRAM column retention during Deep Sleep and/or LPDS Power mode(s)
|
|
|
|
//!
|
|
|
|
//! \param ulSramColSel is bit mask of valid SRAM columns.
|
|
|
|
//! \param ulModeFlags is the bit mask of power modes.
|
|
|
|
//!
|
|
|
|
//! This functions enables the SRAM retention. The device supports configurable
|
|
|
|
//! SRAM column retention in Low Power Deep Sleep (LPDS) and Deep Sleep power
|
|
|
|
//! modes. Each column is of 64 KB size.
|
|
|
|
//!
|
|
|
|
//! The parameter \e ulSramColSel should be logical OR of the following:-
|
|
|
|
//! -\b PRCM_SRAM_COL_1
|
|
|
|
//! -\b PRCM_SRAM_COL_2
|
|
|
|
//! -\b PRCM_SRAM_COL_3
|
|
|
|
//! -\b PRCM_SRAM_COL_4
|
|
|
|
//!
|
|
|
|
//! The parameter \e ulModeFlags selects the power modes and sholud be logical
|
|
|
|
//! OR of one or more of the following
|
|
|
|
//! -\b PRCM_SRAM_DSLP_RET
|
|
|
|
//! -\b PRCM_SRAM_LPDS_RET
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMSRAMRetentionEnable(unsigned long ulSramColSel, unsigned long ulModeFlags)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
if(ulModeFlags & PRCM_SRAM_DSLP_RET)
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Configure deep sleep SRAM retention register
|
|
|
|
//
|
|
|
|
HWREG(GPRCM_BASE+ GPRCM_O_APPS_SRAM_DSLP_CFG) = (ulSramColSel & 0xF);
|
|
|
|
}
|
|
|
|
|
|
|
|
if(ulModeFlags & PRCM_SRAM_LPDS_RET)
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Configure LPDS SRAM retention register
|
|
|
|
//
|
|
|
|
HWREG(GPRCM_BASE+ GPRCM_O_APPS_SRAM_LPDS_CFG) = (ulSramColSel & 0xF);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Disable SRAM column retention during Deep Sleep and/or LPDS Power mode(s).
|
|
|
|
//!
|
|
|
|
//! \param ulSramColSel is bit mask of valid SRAM columns.
|
|
|
|
//! \param ulFlags is the bit mask of power modes.
|
|
|
|
//!
|
|
|
|
//! This functions disable the SRAM retention. The device supports configurable
|
|
|
|
//! SRAM column retention in Low Power Deep Sleep (LPDS) and Deep Sleep power
|
|
|
|
//! modes. Each column is of 64 KB size.
|
|
|
|
//!
|
|
|
|
//! The parameter \e ulSramColSel should be logical OR of the following:-
|
|
|
|
//! -\b PRCM_SRAM_COL_1
|
|
|
|
//! -\b PRCM_SRAM_COL_2
|
|
|
|
//! -\b PRCM_SRAM_COL_3
|
|
|
|
//! -\b PRCM_SRAM_COL_4
|
|
|
|
//!
|
|
|
|
//! The parameter \e ulFlags selects the power modes and sholud be logical OR
|
|
|
|
//! of one or more of the following
|
|
|
|
//! -\b PRCM_SRAM_DSLP_RET
|
|
|
|
//! -\b PRCM_SRAM_LPDS_RET
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMSRAMRetentionDisable(unsigned long ulSramColSel, unsigned long ulFlags)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
if(ulFlags & PRCM_SRAM_DSLP_RET)
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Configure deep sleep SRAM retention register
|
|
|
|
//
|
|
|
|
HWREG(GPRCM_BASE+ GPRCM_O_APPS_SRAM_DSLP_CFG) &= ~(ulSramColSel & 0xF);
|
|
|
|
}
|
|
|
|
|
|
|
|
if(ulFlags & PRCM_SRAM_LPDS_RET)
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Configure LPDS SRAM retention register
|
|
|
|
//
|
|
|
|
HWREG(GPRCM_BASE+ GPRCM_O_APPS_SRAM_LPDS_CFG) &= ~(ulSramColSel & 0xF);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Enables individual HIB wakeup source(s).
|
|
|
|
//!
|
|
|
|
//! \param ulHIBWakupSrc is logical OR of valid HIB wakeup sources.
|
|
|
|
//!
|
|
|
|
//! This function enables individual HIB wakeup source(s). The paramter
|
|
|
|
//! \e ulHIBWakupSrc is the bit mask of HIB wakeup sources and should be
|
|
|
|
//! logical OR of one or more of the follwoing :-
|
|
|
|
//! -\b PRCM_HIB_SLOW_CLK_CTR
|
|
|
|
//! -\b PRCM_HIB_GPIO2
|
|
|
|
//! -\b PRCM_HIB_GPIO4
|
|
|
|
//! -\b PRCM_HIB_GPIO13
|
|
|
|
//! -\b PRCM_HIB_GPIO17
|
|
|
|
//! -\b PRCM_HIB_GPIO11
|
|
|
|
//! -\b PRCM_HIB_GPIO24
|
|
|
|
//! -\b PRCM_HIB_GPIO26
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMHibernateWakeupSourceEnable(unsigned long ulHIBWakupSrc)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
unsigned long ulRegValue;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Read the RTC register
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
ulRegValue = MAP_PRCMHIBRegRead(HIB3P3_BASE+HIB3P3_O_MEM_HIB_RTC_WAKE_EN);
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
//
|
|
|
|
// Enable the RTC as wakeup source if specified
|
|
|
|
//
|
|
|
|
ulRegValue |= (ulHIBWakupSrc & 0x1);
|
|
|
|
|
|
|
|
//
|
|
|
|
// Enable HIB wakeup sources
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE+HIB3P3_O_MEM_HIB_RTC_WAKE_EN,ulRegValue);
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
//
|
|
|
|
// REad the GPIO wakeup configuration register
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
ulRegValue = MAP_PRCMHIBRegRead(HIB3P3_BASE+HIB3P3_O_MEM_GPIO_WAKE_EN);
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
//
|
|
|
|
// Enable the specified GPIOs a wakeup sources
|
|
|
|
//
|
|
|
|
ulRegValue |= ((ulHIBWakupSrc>>16)&0xFF);
|
|
|
|
|
|
|
|
//
|
|
|
|
// Write the new register configuration
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE+HIB3P3_O_MEM_GPIO_WAKE_EN,ulRegValue);
|
2015-02-06 14:35:48 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Disable individual HIB wakeup source(s).
|
|
|
|
//!
|
|
|
|
//! \param ulHIBWakupSrc is logical OR of valid HIB wakeup sources.
|
|
|
|
//!
|
|
|
|
//! This function disable individual HIB wakeup source(s). The paramter
|
|
|
|
//! \e ulHIBWakupSrc is same as bit fileds defined in
|
|
|
|
//! PRCMEnableHibernateWakeupSource()
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMHibernateWakeupSourceDisable(unsigned long ulHIBWakupSrc)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
unsigned long ulRegValue;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Read the RTC register
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
ulRegValue = MAP_PRCMHIBRegRead(HIB3P3_BASE+HIB3P3_O_MEM_HIB_RTC_WAKE_EN);
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
//
|
|
|
|
// Disable the RTC as wakeup source if specified
|
|
|
|
//
|
|
|
|
ulRegValue &= ~(ulHIBWakupSrc & 0x1);
|
|
|
|
|
|
|
|
//
|
|
|
|
// Disable HIB wakeup sources
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE+HIB3P3_O_MEM_HIB_RTC_WAKE_EN,ulRegValue);
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
//
|
|
|
|
// Read the GPIO wakeup configuration register
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
ulRegValue = MAP_PRCMHIBRegRead(HIB3P3_BASE+HIB3P3_O_MEM_GPIO_WAKE_EN);
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
//
|
|
|
|
// Enable the specified GPIOs a wakeup sources
|
|
|
|
//
|
|
|
|
ulRegValue &= ~((ulHIBWakupSrc>>16)&0xFF);
|
|
|
|
|
|
|
|
//
|
|
|
|
// Write the new register configuration
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE+HIB3P3_O_MEM_GPIO_WAKE_EN,ulRegValue);
|
2015-02-06 14:35:48 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Get hibernate wakeup cause
|
|
|
|
//!
|
|
|
|
//! This function gets the hibernate wakeup cause.
|
|
|
|
//!
|
|
|
|
//! \return Returns \b PRCM_HIB_WAKEUP_CAUSE_SLOW_CLOCK or
|
|
|
|
//! \b PRCM_HIB_WAKEUP_CAUSE_GPIO
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
unsigned long PRCMHibernateWakeupCauseGet(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
2015-03-14 08:59:47 +00:00
|
|
|
return ((MAP_PRCMHIBRegRead(HIB3P3_BASE + HIB3P3_O_MEM_HIB_WAKE_STATUS)>>1)&0xF);
|
2015-02-06 14:35:48 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Sets Hibernate wakeup Timer
|
|
|
|
//!
|
|
|
|
//! \param ullTicks is number of 32.768 KHz clocks
|
|
|
|
//!
|
|
|
|
//! This function sets internal hibernate wakeup timer running at 32.768 KHz.
|
|
|
|
//!
|
|
|
|
//! \return Returns \b true on success, \b false otherwise.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMHibernateIntervalSet(unsigned long long ullTicks)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
unsigned long long ullRTCVal;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Latch the RTC vlaue
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE+HIB3P3_O_MEM_HIB_RTC_TIMER_READ ,0x1);
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
//
|
|
|
|
// Read latched values as 2 32-bit vlaues
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
ullRTCVal = MAP_PRCMHIBRegRead(HIB3P3_BASE + HIB3P3_O_MEM_HIB_RTC_TIMER_MSW);
|
2015-02-06 14:35:48 +00:00
|
|
|
ullRTCVal = ullRTCVal << 32;
|
2015-03-14 08:59:47 +00:00
|
|
|
ullRTCVal |= MAP_PRCMHIBRegRead(HIB3P3_BASE+HIB3P3_O_MEM_HIB_RTC_TIMER_LSW);
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
//
|
|
|
|
// Add the interval
|
|
|
|
//
|
|
|
|
ullRTCVal = ullRTCVal + ullTicks;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Set RTC match value
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE+HIB3P3_O_MEM_HIB_RTC_WAKE_LSW_CONF,
|
2015-02-06 14:35:48 +00:00
|
|
|
(unsigned long)(ullRTCVal));
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE+HIB3P3_O_MEM_HIB_RTC_WAKE_MSW_CONF,
|
2015-02-06 14:35:48 +00:00
|
|
|
(unsigned long)(ullRTCVal>>32));
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Selects the GPIO(s) for hibernate wakeup
|
|
|
|
//!
|
|
|
|
//! \param ulGPIOBitMap is the bit-map of valid hibernate wakeup GPIO.
|
|
|
|
//! \param ulType is the wakeup trigger type.
|
|
|
|
//!
|
|
|
|
//! This function setects the wakeup GPIO for hibernate and can be
|
|
|
|
//! used to select any combination of 7 pre-defined GPIO(s).
|
|
|
|
//!
|
|
|
|
//! This function enables individual HIB wakeup source(s). The paramter
|
|
|
|
//! \e ulGPIOBitMap should be one of the follwoing :-
|
|
|
|
//! -\b PRCM_HIB_GPIO2
|
|
|
|
//! -\b PRCM_HIB_GPIO4
|
|
|
|
//! -\b PRCM_HIB_GPIO13
|
|
|
|
//! -\b PRCM_HIB_GPIO17
|
|
|
|
//! -\b PRCM_HIB_GPIO11
|
|
|
|
//! -\b PRCM_HIB_GPIO24
|
|
|
|
//! -\b PRCM_HIB_GPIO26
|
|
|
|
//!
|
|
|
|
//! The parameter \e ulType sets the trigger type and can be one of the
|
|
|
|
//! following:
|
|
|
|
//! - \b PRCM_HIB_LOW_LEVEL
|
|
|
|
//! - \b PRCM_HIB_HIGH_LEVEL
|
|
|
|
//! - \b PRCM_HIB_FALL_EDGE
|
|
|
|
//! - \b PRCM_HIB_RISE_EDGE
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMHibernateWakeUpGPIOSelect(unsigned long ulGPIOBitMap, unsigned long ulType)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
unsigned char ucLoop;
|
|
|
|
unsigned long ulRegValue;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Shift the bits to extract the GPIO selection
|
|
|
|
//
|
|
|
|
ulGPIOBitMap >>= 16;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Set the configuration for each GPIO
|
|
|
|
//
|
|
|
|
for(ucLoop=0; ucLoop < 7; ucLoop++)
|
|
|
|
{
|
|
|
|
if(ulGPIOBitMap & (1<<ucLoop))
|
|
|
|
{
|
2015-03-14 08:59:47 +00:00
|
|
|
ulRegValue = MAP_PRCMHIBRegRead(HIB3P3_BASE+HIB3P3_O_MEM_GPIO_WAKE_CONF);
|
2015-02-06 14:35:48 +00:00
|
|
|
ulRegValue |= (ulType << (ucLoop*2));
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE+HIB3P3_O_MEM_GPIO_WAKE_CONF, ulRegValue);
|
2015-02-06 14:35:48 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Puts the system into Hibernate
|
|
|
|
//!
|
|
|
|
//! This function puts the system into Hibernate. The device enters HIB
|
|
|
|
//! immediately and on exit from HIB device core starts its execution from
|
|
|
|
//! reset thus the function never returns.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMHibernateEnter(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
|
|
|
|
//
|
|
|
|
// Request hibernate.
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite((HIB3P3_BASE+HIB3P3_O_MEM_HIB_REQ),0x1);
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
__asm(" nop\n"
|
|
|
|
" nop\n"
|
|
|
|
" nop\n"
|
|
|
|
" nop\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Gets the current value of the internal slow clock counter
|
|
|
|
//!
|
|
|
|
//! This function latches and reads the internal RTC running at 32.768 Khz
|
|
|
|
//!
|
|
|
|
//! \return 64-bit current counter vlaue.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
unsigned long long PRCMSlowClkCtrGet(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
unsigned long long ullRTCVal;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Latch the RTC vlaue
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE+HIB3P3_O_MEM_HIB_RTC_TIMER_READ, 0x1);
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
//
|
|
|
|
// Read latched values as 2 32-bit vlaues
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
ullRTCVal = MAP_PRCMHIBRegRead(HIB3P3_BASE + HIB3P3_O_MEM_HIB_RTC_TIMER_MSW);
|
2015-02-06 14:35:48 +00:00
|
|
|
ullRTCVal = ullRTCVal << 32;
|
2015-03-14 08:59:47 +00:00
|
|
|
ullRTCVal |= MAP_PRCMHIBRegRead(HIB3P3_BASE+HIB3P3_O_MEM_HIB_RTC_TIMER_LSW);
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
return ullRTCVal;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Sets slow clock counter match value to interrupt the processor.
|
|
|
|
//!
|
|
|
|
//! \param ullValue is the match value.
|
|
|
|
//!
|
|
|
|
//! This function sets the match value for slow clock counter. This is use
|
|
|
|
//! to interrupt the processor when RTC counts to the specified value.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMSlowClkCtrMatchSet(unsigned long long ullValue)
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Set RTC match value
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE + HIB3P3_O_MEM_HIB_RTC_IRQ_LSW_CONF,
|
2015-02-06 14:35:48 +00:00
|
|
|
(unsigned long)(ullValue));
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE + HIB3P3_O_MEM_HIB_RTC_IRQ_MSW_CONF,
|
2015-02-06 14:35:48 +00:00
|
|
|
(unsigned long)(ullValue>>32));
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Gets slow clock counter match value.
|
|
|
|
//!
|
|
|
|
//! This function gets the match value for slow clock counter. This is use
|
|
|
|
//! to interrupt the processor when RTC counts to the specified value.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
unsigned long long PRCMSlowClkCtrMatchGet(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
unsigned long long ullValue;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Get RTC match value
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
ullValue = MAP_PRCMHIBRegRead(HIB3P3_BASE + HIB3P3_O_MEM_HIB_RTC_IRQ_MSW_CONF);
|
2015-02-06 14:35:48 +00:00
|
|
|
ullValue = ullValue<<32;
|
2015-03-14 08:59:47 +00:00
|
|
|
ullValue |= MAP_PRCMHIBRegRead(HIB3P3_BASE + HIB3P3_O_MEM_HIB_RTC_IRQ_LSW_CONF);
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
//
|
|
|
|
// Return the value
|
|
|
|
//
|
|
|
|
return ullValue;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Write to On-Chip Retention (OCR) register.
|
|
|
|
//!
|
|
|
|
//! This function writes to On-Chip retention register. The device supports two
|
|
|
|
//! 4-byte OCR register which are retained across all power mode.
|
|
|
|
//!
|
|
|
|
//! The parameter \e ucIndex is an index of the OCR and can be \b 0 or \b 1.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMOCRRegisterWrite(unsigned char ucIndex, unsigned long ulRegValue)
|
|
|
|
{
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE+HIB3P3_O_MEM_HIB_REG2+(ucIndex << 2),ulRegValue);
|
2015-02-06 14:35:48 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Read from On-Chip Retention (OCR) register.
|
|
|
|
//!
|
|
|
|
//! This function reads from On-Chip retention register. The device supports two
|
|
|
|
//! 4-byte OCR register which are retained across all power mode.
|
|
|
|
//!
|
|
|
|
//! The parameter \e ucIndex is an index of the OCR and can be \b 0 or \b 1.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
unsigned long PRCMOCRRegisterRead(unsigned char ucIndex)
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Return the read value.
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
return MAP_PRCMHIBRegRead(HIB3P3_BASE+HIB3P3_O_MEM_HIB_REG2 + (ucIndex << 2));
|
2015-02-06 14:35:48 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Registers an interrupt handler for the PRCM.
|
|
|
|
//!
|
|
|
|
//! \param pfnHandler is a pointer to the function to be called when the
|
|
|
|
//! interrupt is activated.
|
|
|
|
//!
|
|
|
|
//! This function does the actual registering of the interrupt handler. This
|
|
|
|
//! function enables the global interrupt in the interrupt controller;
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMIntRegister(void (*pfnHandler)(void))
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Register the interrupt handler.
|
|
|
|
//
|
|
|
|
IntRegister(INT_PRCM, pfnHandler);
|
|
|
|
|
|
|
|
//
|
|
|
|
// Enable the PRCM interrupt.
|
|
|
|
//
|
|
|
|
IntEnable(INT_PRCM);
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Unregisters an interrupt handler for the PRCM.
|
|
|
|
//!
|
|
|
|
//! This function does the actual unregistering of the interrupt handler. It
|
|
|
|
//! clears the handler to be called when a PRCM interrupt occurs. This
|
|
|
|
//! function also masks off the interrupt in the interrupt controller so that
|
|
|
|
//! the interrupt handler no longer is called.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMIntUnregister(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
//
|
|
|
|
// Enable the UART interrupt.
|
|
|
|
//
|
|
|
|
IntDisable(INT_PRCM);
|
|
|
|
|
|
|
|
//
|
|
|
|
// Register the interrupt handler.
|
|
|
|
//
|
|
|
|
IntUnregister(INT_PRCM);
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Enables individual PRCM interrupt sources.
|
|
|
|
//!
|
|
|
|
//! \param ulIntFlags is the bit mask of the interrupt sources to be enabled.
|
|
|
|
//!
|
|
|
|
//! This function enables the indicated ARCM interrupt sources. Only the
|
|
|
|
//! sources that are enabled can be reflected to the processor interrupt;
|
|
|
|
//! disabled sources have no effect on the processor.
|
|
|
|
//!
|
|
|
|
//! The \e ulIntFlags parameter is the logical OR of any of the following:
|
|
|
|
//! -\b PRCM_INT_SLOW_CLK_CTR
|
|
|
|
//!
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMIntEnable(unsigned long ulIntFlags)
|
|
|
|
{
|
|
|
|
unsigned long ulRegValue;
|
|
|
|
|
|
|
|
if(ulIntFlags & PRCM_INT_SLOW_CLK_CTR )
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Enable PRCM interrupt
|
|
|
|
//
|
|
|
|
HWREG(ARCM_BASE + APPS_RCM_O_APPS_RCM_INTERRUPT_ENABLE) |= 0x4;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Enable RTC interrupt
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
ulRegValue = MAP_PRCMHIBRegRead(HIB3P3_BASE + HIB3P3_O_MEM_HIB_RTC_IRQ_ENABLE);
|
2015-02-06 14:35:48 +00:00
|
|
|
ulRegValue |= 0x1;
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE + HIB3P3_O_MEM_HIB_RTC_IRQ_ENABLE, ulRegValue);
|
2015-02-06 14:35:48 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Disables individual PRCM interrupt sources.
|
|
|
|
//!
|
|
|
|
//! \param ulIntFlags is the bit mask of the interrupt sources to be disabled.
|
|
|
|
//!
|
|
|
|
//! This function disables the indicated ARCM interrupt sources. Only the
|
|
|
|
//! sources that are enabled can be reflected to the processor interrupt;
|
|
|
|
//! disabled sources have no effect on the processor.
|
|
|
|
//!
|
|
|
|
//! The \e ulIntFlags parameter has the same definition as the \e ulIntFlags
|
|
|
|
//! parameter to PRCMEnableInterrupt().
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMIntDisable(unsigned long ulIntFlags)
|
|
|
|
{
|
|
|
|
unsigned long ulRegValue;
|
|
|
|
|
|
|
|
if(ulIntFlags & PRCM_INT_SLOW_CLK_CTR )
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Disable PRCM interrupt
|
|
|
|
//
|
|
|
|
HWREG(ARCM_BASE + APPS_RCM_O_APPS_RCM_INTERRUPT_ENABLE) &= ~0x4;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Disable RTC interrupt
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
ulRegValue = MAP_PRCMHIBRegRead(HIB3P3_BASE + HIB3P3_O_MEM_HIB_RTC_IRQ_ENABLE);
|
2015-02-06 14:35:48 +00:00
|
|
|
ulRegValue &= ~0x1;
|
2015-03-14 08:59:47 +00:00
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE + HIB3P3_O_MEM_HIB_RTC_IRQ_ENABLE, ulRegValue);
|
2015-02-06 14:35:48 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Gets the current interrupt status.
|
|
|
|
//!
|
|
|
|
//! This function returns the PRCM interrupt status of interrupts that are
|
|
|
|
//! allowed to reflect to the processor. The interrupts are cleared on read.
|
|
|
|
//!
|
|
|
|
//! \return Returns the current interrupt status.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
unsigned long PRCMIntStatus(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
return HWREG(ARCM_BASE + APPS_RCM_O_APPS_RCM_INTERRUPT_STATUS);
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Mark the function of RTC as being used
|
|
|
|
//!
|
|
|
|
//! This function marks in HW that feature to maintain calendar time in device
|
|
|
|
//! is being used.
|
|
|
|
//!
|
|
|
|
//! Specifically, this feature reserves user's HIB Register-1 accessed through
|
|
|
|
//! PRCMOCRRegisterWrite(1) for internal work / purpose, therefore, the stated
|
|
|
|
//! register is not available to user. Also, users must not excercise the Slow
|
|
|
|
//! Clock Counter API(s), if RTC has been set for use.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMRTCInUseSet(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
RTC_USE_SET();
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2015-03-14 08:59:47 +00:00
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Clear the function of RTC as being used
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMRTCInUseClear(void)
|
|
|
|
{
|
|
|
|
RTC_USE_CLR();
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2015-02-06 14:35:48 +00:00
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Ascertain whether function of RTC is being used
|
|
|
|
//!
|
|
|
|
//! This function indicates whether function of RTC is being used on the device
|
|
|
|
//! or not.
|
|
|
|
//!
|
|
|
|
//! This routine should be utilized by the application software, when returning
|
|
|
|
//! from low-power, to confirm that RTC has been put to use and may not need to
|
|
|
|
//! set the value of the RTC.
|
|
|
|
//!
|
|
|
|
//! The RTC feature, if set or marked, can be only reset either through reboot
|
|
|
|
//! or power cycle.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
tBoolean PRCMRTCInUseGet(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
return IS_RTC_USED()? true : false;
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Set the calendar time in the device.
|
|
|
|
//!
|
|
|
|
//! \param ulSecs refers to the seconds part of the calendar time
|
|
|
|
//! \param usMsec refers to the fractional (ms) part of the second
|
|
|
|
//!
|
|
|
|
//! This function sets the specified calendar time in the device. The calendar
|
|
|
|
//! time is outlined in terms of seconds and milliseconds. However, the device
|
|
|
|
//! makes no assumption about the origin or reference of the calendar time.
|
|
|
|
//!
|
|
|
|
//! The device uses the indicated calendar value to update and maintain the
|
|
|
|
//! wall-clock time across active and low power states.
|
|
|
|
//!
|
|
|
|
//! The function PRCMRTCInUseSet() must be invoked prior to use of this feature.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMRTCSet(unsigned long ulSecs, unsigned short usMsec)
|
|
|
|
{
|
|
|
|
unsigned long long ullMsec = 0;
|
|
|
|
|
|
|
|
if(IS_RTC_USED()) {
|
|
|
|
ullMsec = RTC_U64MSEC_MK(ulSecs, usMsec) - SCC_U64MSEC_GET();
|
|
|
|
|
|
|
|
RTC_U32SECS_REG_WR(RTC_SECS_IN_U64MSEC(ullMsec));
|
|
|
|
RTC_U16MSEC_REG_WR(RTC_MSEC_IN_U64MSEC(ullMsec));
|
|
|
|
}
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Get the instantaneous calendar time from the device.
|
|
|
|
//!
|
|
|
|
//! \param ulSecs refers to the seconds part of the calendar time
|
|
|
|
//! \param usMsec refers to the fractional (ms) part of the second
|
|
|
|
//!
|
|
|
|
//! This function fetches the instantaneous value of the ticking calendar time
|
|
|
|
//! from the device. The calendar time is outlined in terms of seconds and
|
|
|
|
//! milliseconds.
|
|
|
|
//!
|
|
|
|
//! The device provides the calendar value that has been maintained across
|
|
|
|
//! active and low power states.
|
|
|
|
//!
|
|
|
|
//! The function PRCMRTCSet() must have been invoked once to set a reference.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMRTCGet(unsigned long *ulSecs, unsigned short *usMsec)
|
|
|
|
{
|
|
|
|
unsigned long long ullMsec = 0;
|
|
|
|
|
|
|
|
if(IS_RTC_USED()) {
|
|
|
|
ullMsec = RTC_U64MSEC_MK(RTC_U32SECS_REG_RD(),
|
|
|
|
RTC_U16MSEC_REG_RD());
|
|
|
|
ullMsec += SCC_U64MSEC_GET();
|
|
|
|
}
|
|
|
|
|
|
|
|
*ulSecs = RTC_SECS_IN_U64MSEC(ullMsec);
|
|
|
|
*usMsec = RTC_MSEC_IN_U64MSEC(ullMsec);
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Set a calendar time alarm.
|
|
|
|
//!
|
|
|
|
//! \param ulSecs refers to the seconds part of the calendar time
|
|
|
|
//! \param usMsec refers to the fractional (ms) part of the second
|
|
|
|
//!
|
|
|
|
//! This function sets an wall-clock alarm in the device to be reported for a
|
|
|
|
//! futuristic calendar time. The calendar time is outlined in terms of seconds
|
|
|
|
//! and milliseconds.
|
|
|
|
//!
|
|
|
|
//! The device provides uses the calendar value that has been maintained across
|
|
|
|
//! active and low power states to report attainment of alarm time.
|
|
|
|
//!
|
|
|
|
//! The function PRCMRTCSet() must have been invoked once to set a reference.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMRTCMatchSet(unsigned long ulSecs, unsigned short usMsec)
|
|
|
|
{
|
|
|
|
unsigned long long ullMsec = 0;
|
|
|
|
|
|
|
|
if(IS_RTC_USED()) {
|
|
|
|
ullMsec = RTC_U64MSEC_MK(ulSecs, usMsec);
|
|
|
|
ullMsec -= RTC_U64MSEC_MK(RTC_U32SECS_REG_RD(),
|
|
|
|
RTC_U16MSEC_REG_RD());
|
|
|
|
SCC_U64MSEC_MATCH_SET(SELECT_SCC_U42BITS(ullMsec));
|
|
|
|
}
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Get a previously set calendar time alarm.
|
|
|
|
//!
|
|
|
|
//! \param ulSecs refers to the seconds part of the calendar time
|
|
|
|
//! \param usMsec refers to the fractional (ms) part of the second
|
|
|
|
//!
|
|
|
|
//! This function fetches from the device a wall-clock alarm that would have
|
|
|
|
//! been previously set in the device. The calendar time is outlined in terms
|
|
|
|
//! of seconds and milliseconds.
|
|
|
|
//!
|
|
|
|
//! If no alarm was set in the past, then this function would fetch a random
|
|
|
|
//! information.
|
|
|
|
//!
|
|
|
|
//! The function PRCMRTCMatchSet() must have been invoked once to set an alarm.
|
|
|
|
//!
|
|
|
|
//! \return None.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMRTCMatchGet(unsigned long *ulSecs, unsigned short *usMsec)
|
|
|
|
{
|
|
|
|
unsigned long long ullMsec = 0;
|
|
|
|
|
|
|
|
if(IS_RTC_USED()) {
|
|
|
|
ullMsec = SCC_U64MSEC_MATCH_GET();
|
|
|
|
ullMsec += RTC_U64MSEC_MK(RTC_U32SECS_REG_RD(),
|
|
|
|
RTC_U16MSEC_REG_RD());
|
|
|
|
}
|
|
|
|
|
|
|
|
*ulSecs = RTC_SECS_IN_U64MSEC(ullMsec);
|
|
|
|
*usMsec = RTC_MSEC_IN_U64MSEC(ullMsec);
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! MCU Initialization Routine
|
|
|
|
//!
|
|
|
|
//! This function sets mandatory configurations for the MCU
|
|
|
|
//!
|
|
|
|
//! \return None
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
2015-03-14 08:59:47 +00:00
|
|
|
void PRCMCC3200MCUInit(void)
|
2015-02-06 14:35:48 +00:00
|
|
|
{
|
|
|
|
unsigned long ulRegValue;
|
|
|
|
|
|
|
|
//
|
|
|
|
// DIG DCDC LPDS ECO Enable
|
|
|
|
//
|
|
|
|
HWREG(0x4402F064) |= 0x800000;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Enable hibernate ECO for PG 1.32 devices only. With this ECO enabled,
|
2015-03-14 08:59:47 +00:00
|
|
|
// any hibernate wakeup source will be kept masked until the device enters
|
2015-02-06 14:35:48 +00:00
|
|
|
// hibernate completely (analog + digital)
|
|
|
|
//
|
2015-03-14 08:59:47 +00:00
|
|
|
ulRegValue = MAP_PRCMHIBRegRead(HIB3P3_BASE + HIB3P3_O_MEM_HIB_REG0);
|
|
|
|
MAP_PRCMHIBRegWrite(HIB3P3_BASE + HIB3P3_O_MEM_HIB_REG0, ulRegValue | (1<<4));
|
2015-02-06 14:35:48 +00:00
|
|
|
|
|
|
|
//
|
|
|
|
// Handling the clock switching (for 1.32 only)
|
|
|
|
//
|
|
|
|
HWREG(0x4402E16C) |= 0x3C;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Enable uDMA
|
|
|
|
//
|
|
|
|
MAP_PRCMPeripheralClkEnable(PRCM_UDMA,PRCM_RUN_MODE_CLK);
|
|
|
|
|
|
|
|
//
|
|
|
|
// Reset uDMA
|
|
|
|
//
|
|
|
|
MAP_PRCMPeripheralReset(PRCM_UDMA);
|
|
|
|
|
|
|
|
//
|
|
|
|
// Disable uDMA
|
|
|
|
//
|
|
|
|
MAP_PRCMPeripheralClkDisable(PRCM_UDMA,PRCM_RUN_MODE_CLK);
|
|
|
|
|
|
|
|
//
|
|
|
|
// Enable RTC
|
|
|
|
//
|
|
|
|
if(MAP_PRCMSysResetCauseGet()== PRCM_POWER_ON)
|
|
|
|
{
|
|
|
|
MAP_PRCMHIBRegWrite(0x4402F804,0x1);
|
|
|
|
}
|
|
|
|
|
|
|
|
//
|
|
|
|
// SWD mode
|
|
|
|
//
|
|
|
|
if (((HWREG(0x4402F0C8) & 0xFF) == 0x2))
|
|
|
|
{
|
|
|
|
HWREG(0x4402E110) = ((HWREG(0x4402E110) & ~0xC0F) | 0x2);
|
|
|
|
HWREG(0x4402E114) = ((HWREG(0x4402E110) & ~0xC0F) | 0x2);
|
|
|
|
}
|
|
|
|
|
|
|
|
//
|
|
|
|
// Override JTAG mux
|
|
|
|
//
|
|
|
|
HWREG(0x4402E184) |= 0x2;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Change UART pins(55,57) mode to PIN_MODE_0 if they are in PIN_MODE_1
|
|
|
|
//
|
|
|
|
if ((HWREG(0x4402E0A4) & 0xF) == 0x1)
|
|
|
|
{
|
|
|
|
HWREG(0x4402E0A4) = ((HWREG(0x4402E0A4) & ~0xF));
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((HWREG(0x4402E0A8) & 0xF) == 0x1)
|
|
|
|
{
|
|
|
|
HWREG(0x4402E0A8) = ((HWREG(0x4402E0A8) & ~0xF));
|
|
|
|
}
|
|
|
|
|
|
|
|
//
|
|
|
|
// DIG DCDC VOUT trim settings based on PROCESS INDICATOR
|
|
|
|
//
|
|
|
|
if (((HWREG(0x4402DC78) >> 22) & 0xF) == 0xE)
|
|
|
|
{
|
|
|
|
HWREG(0x4402F0B0) = ((HWREG(0x4402F0B0) & ~(0x00FC0000))|(0x32 << 18));
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
HWREG(0x4402F0B0) = ((HWREG(0x4402F0B0) & ~(0x00FC0000))|(0x29 << 18));
|
|
|
|
}
|
|
|
|
|
|
|
|
//
|
|
|
|
// Enable SOFT RESTART in case of DIG DCDC collapse
|
|
|
|
//
|
|
|
|
HWREG(0x4402FC74) &= ~(0x10000000);
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
|
|
// Disable the sleep for ANA DCDC
|
|
|
|
//
|
|
|
|
HWREG(0x4402F0A8) |= 0x00000004 ;
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Reads 32-bit value from register at specified address
|
|
|
|
//!
|
|
|
|
//! \param ulRegAddr is the address of register to be read.
|
|
|
|
//!
|
|
|
|
//! This function reads 32-bit value from the register as specified by
|
|
|
|
//! \e ulRegAddr.
|
|
|
|
//!
|
|
|
|
//! \return Return the value of the register.
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
unsigned long PRCMHIBRegRead(unsigned long ulRegAddr)
|
|
|
|
{
|
|
|
|
unsigned long ulValue;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Read the Reg value
|
|
|
|
//
|
|
|
|
ulValue = HWREG(ulRegAddr);
|
|
|
|
|
|
|
|
//
|
|
|
|
// Wait for 200 uSec
|
|
|
|
//
|
|
|
|
UtilsDelay((80*200)/3);
|
|
|
|
|
|
|
|
//
|
|
|
|
// Return the value
|
|
|
|
//
|
|
|
|
return ulValue;
|
|
|
|
}
|
|
|
|
|
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! Writes 32-bit value to register at specified address
|
|
|
|
//!
|
|
|
|
//! \param ulRegAddr is the address of register to be read.
|
|
|
|
//! \param ulValue is the 32-bit value to be written.
|
|
|
|
//!
|
|
|
|
//! This function writes 32-bit value passed as \e ulValue to the register as
|
|
|
|
//! specified by \e ulRegAddr
|
|
|
|
//!
|
|
|
|
//! \return None
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
void PRCMHIBRegWrite(unsigned long ulRegAddr, unsigned long ulValue)
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Read the Reg value
|
|
|
|
//
|
|
|
|
HWREG(ulRegAddr) = ulValue;
|
|
|
|
|
|
|
|
//
|
|
|
|
// Wait for 200 uSec
|
|
|
|
//
|
|
|
|
UtilsDelay((80*200)/3);
|
|
|
|
}
|
|
|
|
|
2015-03-15 09:05:15 +00:00
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
//! \param ulDivider is clock frequency divider value
|
|
|
|
//! \param ulWidth is the width of the high pulse
|
|
|
|
//!
|
|
|
|
//! This function sets the input frequency for camera module.
|
|
|
|
//!
|
|
|
|
//! The frequency is calculated as follows:
|
|
|
|
//!
|
|
|
|
//! f_out = 240MHz/ulDivider;
|
|
|
|
//!
|
|
|
|
//! The parameter \e ulWidth sets the width of the high pulse.
|
|
|
|
//!
|
|
|
|
//! For e.g.:
|
|
|
|
//!
|
|
|
|
//! ulDivider = 4;
|
|
|
|
//! ulWidth = 2;
|
|
|
|
//!
|
|
|
|
//! f_out = 30 MHz and 50% duty cycle
|
|
|
|
//!
|
|
|
|
//! And,
|
|
|
|
//!
|
|
|
|
//! ulDivider = 4;
|
|
|
|
//! ulWidth = 1;
|
|
|
|
//!
|
|
|
|
//! f_out = 30 MHz and 25% duty cycle
|
|
|
|
//!
|
|
|
|
//! \return 0 on success, 1 on error
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|
|
|
|
unsigned long PRCMCameraFreqSet(unsigned char ulDivider, unsigned char ulWidth)
|
|
|
|
{
|
|
|
|
if(ulDivider > ulWidth && ulWidth != 0 )
|
|
|
|
{
|
|
|
|
//
|
|
|
|
// Set the hifh pulse width
|
|
|
|
//
|
|
|
|
HWREG(ARCM_BASE +
|
|
|
|
APPS_RCM_O_CAMERA_CLK_GEN) = (((ulWidth & 0x07) -1) << 8);
|
|
|
|
|
|
|
|
//
|
|
|
|
// Set the low pulse width
|
|
|
|
//
|
|
|
|
HWREG(ARCM_BASE +
|
|
|
|
APPS_RCM_O_CAMERA_CLK_GEN) = ((ulDivider - ulWidth - 1) & 0x07);
|
|
|
|
//
|
|
|
|
// Return success
|
|
|
|
//
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
//
|
|
|
|
// Success;
|
|
|
|
//
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2015-02-06 14:35:48 +00:00
|
|
|
//*****************************************************************************
|
|
|
|
//
|
|
|
|
// Close the Doxygen group.
|
|
|
|
//! @}
|
|
|
|
//
|
|
|
|
//*****************************************************************************
|