2013-10-24 00:22:27 +01:00
|
|
|
/**
|
|
|
|
|
******************************************************************************
|
|
|
|
|
* @file STM324x7i_eval.c
|
|
|
|
|
* @author MCD Application Team
|
|
|
|
|
* @version V1.0.0
|
|
|
|
|
* @date 11-January-2013
|
|
|
|
|
* @brief This file provides
|
|
|
|
|
* - set of firmware functions to manage Leds, push-button and COM ports
|
|
|
|
|
* - low level initialization functions for SD card (on SDIO) and
|
|
|
|
|
* serial EEPROM (sEE)
|
|
|
|
|
* available on STM324x7I-EVAL evaluation board(MB786) from
|
|
|
|
|
* STMicroelectronics.
|
|
|
|
|
******************************************************************************
|
|
|
|
|
* @attention
|
|
|
|
|
*
|
|
|
|
|
* <h2><center>© COPYRIGHT 2013 STMicroelectronics</center></h2>
|
|
|
|
|
*
|
|
|
|
|
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
|
|
|
|
|
* You may not use this file except in compliance with the License.
|
|
|
|
|
* You may obtain a copy of the License at:
|
|
|
|
|
*
|
|
|
|
|
* http://www.st.com/software_license_agreement_liberty_v2
|
|
|
|
|
*
|
|
|
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
|
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
|
|
* See the License for the specific language governing permissions and
|
|
|
|
|
* limitations under the License.
|
|
|
|
|
*
|
|
|
|
|
******************************************************************************
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/* Includes ------------------------------------------------------------------*/
|
|
|
|
|
#include "stm32f4xx_dma.h"
|
|
|
|
|
#include "stm32f4xx_exti.h"
|
|
|
|
|
#include "stm32f4xx_gpio.h"
|
|
|
|
|
#include "stm32f4xx_rcc.h"
|
|
|
|
|
#include "stm32f4xx_sdio.h"
|
|
|
|
|
//#include "stm32f4xx_syscfg.h"
|
|
|
|
|
#include "stm_misc.h"
|
|
|
|
|
#include "stm324x7i_eval.h"
|
|
|
|
|
//#include "stm32f4xx_i2c.h"
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* @brief DeInitializes the SDIO interface.
|
|
|
|
|
* @param None
|
|
|
|
|
* @retval None
|
|
|
|
|
*/
|
|
|
|
|
void SD_LowLevel_DeInit(void)
|
|
|
|
|
{
|
|
|
|
|
GPIO_InitTypeDef GPIO_InitStructure;
|
|
|
|
|
|
|
|
|
|
/*!< Disable SDIO Clock */
|
|
|
|
|
SDIO_ClockCmd(DISABLE);
|
|
|
|
|
|
|
|
|
|
/*!< Set Power State to OFF */
|
|
|
|
|
SDIO_SetPowerState(SDIO_PowerState_OFF);
|
|
|
|
|
|
|
|
|
|
/*!< DeInitializes the SDIO peripheral */
|
|
|
|
|
SDIO_DeInit();
|
|
|
|
|
|
|
|
|
|
/* Disable the SDIO APB2 Clock */
|
|
|
|
|
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SDIO, DISABLE);
|
|
|
|
|
|
|
|
|
|
GPIO_PinAFConfig(GPIOC, GPIO_PinSource8, GPIO_AF_MCO);
|
|
|
|
|
GPIO_PinAFConfig(GPIOC, GPIO_PinSource9, GPIO_AF_MCO);
|
|
|
|
|
GPIO_PinAFConfig(GPIOC, GPIO_PinSource10, GPIO_AF_MCO);
|
|
|
|
|
GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_MCO);
|
|
|
|
|
GPIO_PinAFConfig(GPIOC, GPIO_PinSource12, GPIO_AF_MCO);
|
|
|
|
|
GPIO_PinAFConfig(GPIOD, GPIO_PinSource2, GPIO_AF_MCO);
|
|
|
|
|
|
|
|
|
|
/* Configure PC.08, PC.09, PC.10, PC.11 pins: D0, D1, D2, D3 pins */
|
|
|
|
|
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11;
|
|
|
|
|
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
|
|
|
|
|
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
|
|
|
|
|
GPIO_Init(GPIOC, &GPIO_InitStructure);
|
|
|
|
|
|
|
|
|
|
/* Configure PD.02 CMD line */
|
|
|
|
|
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
|
|
|
|
|
GPIO_Init(GPIOD, &GPIO_InitStructure);
|
|
|
|
|
|
|
|
|
|
/* Configure PC.12 pin: CLK pin */
|
|
|
|
|
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
|
|
|
|
|
GPIO_Init(GPIOC, &GPIO_InitStructure);
|
|
|
|
|
}
|
|
|
|
|
|
2014-02-08 16:00:15 +00:00
|
|
|
/* Init just the detect pin.
|
|
|
|
|
* This is so we can save power by not enabling the whole SD card interface,
|
|
|
|
|
* yet still detect when a card is inserted.
|
|
|
|
|
*/
|
|
|
|
|
void SD_LowLevel_Init_Detect(void) {
|
|
|
|
|
|
|
|
|
|
/* Periph clock enable */
|
|
|
|
|
RCC_AHB1PeriphClockCmd(SD_DETECT_GPIO_CLK, ENABLE);
|
|
|
|
|
|
|
|
|
|
/*!< Configure SD_SPI_DETECT_PIN pin: SD Card detect pin */
|
|
|
|
|
#if defined(PYBOARD3)
|
|
|
|
|
// dpgeorge: PYBv2-v3: switch is normally open, connected to VDD when card inserted
|
2014-02-17 07:14:49 +00:00
|
|
|
GPIO_InitTypeDef GPIO_InitStructure;
|
2014-02-08 16:00:15 +00:00
|
|
|
GPIO_InitStructure.GPIO_Pin = SD_DETECT_PIN;
|
|
|
|
|
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz; // needs to be 2MHz due to restrictions on PC13
|
|
|
|
|
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
|
|
|
|
|
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
|
|
|
|
|
GPIO_Init(SD_DETECT_GPIO_PORT, &GPIO_InitStructure);
|
|
|
|
|
#elif defined(PYBOARD4)
|
|
|
|
|
// dpgeorge: PYBv4: switch is normally open, connected to GND when card inserted
|
2014-02-17 07:14:49 +00:00
|
|
|
GPIO_InitTypeDef GPIO_InitStructure;
|
2014-02-08 16:00:15 +00:00
|
|
|
GPIO_InitStructure.GPIO_Pin = SD_DETECT_PIN;
|
|
|
|
|
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
|
|
|
|
|
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
|
|
|
|
|
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
|
|
|
|
|
GPIO_Init(SD_DETECT_GPIO_PORT, &GPIO_InitStructure);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
2013-10-24 00:22:27 +01:00
|
|
|
/**
|
|
|
|
|
* @brief Initializes the SD Card and put it into StandBy State (Ready for
|
|
|
|
|
* data transfer).
|
|
|
|
|
* @param None
|
|
|
|
|
* @retval None
|
|
|
|
|
*/
|
|
|
|
|
void SD_LowLevel_Init(void)
|
|
|
|
|
{
|
2014-02-08 16:00:15 +00:00
|
|
|
// init the detect pin first
|
|
|
|
|
SD_LowLevel_Init_Detect();
|
|
|
|
|
|
2013-10-24 00:22:27 +01:00
|
|
|
GPIO_InitTypeDef GPIO_InitStructure;
|
|
|
|
|
|
|
|
|
|
/* GPIOC and GPIOD Periph clock enable */
|
|
|
|
|
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC | RCC_AHB1Periph_GPIOD | SD_DETECT_GPIO_CLK, ENABLE);
|
|
|
|
|
|
|
|
|
|
GPIO_PinAFConfig(GPIOC, GPIO_PinSource8, GPIO_AF_SDIO);
|
|
|
|
|
GPIO_PinAFConfig(GPIOC, GPIO_PinSource9, GPIO_AF_SDIO);
|
|
|
|
|
GPIO_PinAFConfig(GPIOC, GPIO_PinSource10, GPIO_AF_SDIO);
|
|
|
|
|
GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_SDIO);
|
|
|
|
|
GPIO_PinAFConfig(GPIOC, GPIO_PinSource12, GPIO_AF_SDIO);
|
|
|
|
|
GPIO_PinAFConfig(GPIOD, GPIO_PinSource2, GPIO_AF_SDIO);
|
|
|
|
|
|
|
|
|
|
/* Configure PC.08, PC.09, PC.10, PC.11 pins: D0, D1, D2, D3 pins */
|
|
|
|
|
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11;
|
|
|
|
|
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_25MHz;
|
|
|
|
|
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
|
|
|
|
|
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
|
|
|
|
|
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
|
|
|
|
|
GPIO_Init(GPIOC, &GPIO_InitStructure);
|
|
|
|
|
|
|
|
|
|
/* Configure PD.02 CMD line */
|
|
|
|
|
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
|
|
|
|
|
GPIO_Init(GPIOD, &GPIO_InitStructure);
|
|
|
|
|
|
|
|
|
|
/* Configure PC.12 pin: CLK pin */
|
|
|
|
|
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
|
|
|
|
|
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
|
|
|
|
|
GPIO_Init(GPIOC, &GPIO_InitStructure);
|
|
|
|
|
|
|
|
|
|
/* Enable the SDIO APB2 Clock */
|
|
|
|
|
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SDIO, ENABLE);
|
|
|
|
|
|
|
|
|
|
/* Enable the DMA2 Clock */
|
|
|
|
|
RCC_AHB1PeriphClockCmd(SD_SDIO_DMA_CLK, ENABLE);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* @brief Configures the DMA2 Channel4 for SDIO Tx request.
|
|
|
|
|
* @param BufferSRC: pointer to the source buffer
|
|
|
|
|
* @param BufferSize: buffer size
|
|
|
|
|
* @retval None
|
|
|
|
|
*/
|
|
|
|
|
void SD_LowLevel_DMA_TxConfig(uint32_t *BufferSRC, uint32_t BufferSize)
|
|
|
|
|
{
|
|
|
|
|
DMA_InitTypeDef SDDMA_InitStructure;
|
|
|
|
|
|
|
|
|
|
DMA_ClearFlag(SD_SDIO_DMA_STREAM, SD_SDIO_DMA_FLAG_FEIF | SD_SDIO_DMA_FLAG_DMEIF | SD_SDIO_DMA_FLAG_TEIF | SD_SDIO_DMA_FLAG_HTIF | SD_SDIO_DMA_FLAG_TCIF);
|
|
|
|
|
|
|
|
|
|
/* DMA2 Stream3 or Stream6 disable */
|
|
|
|
|
DMA_Cmd(SD_SDIO_DMA_STREAM, DISABLE);
|
|
|
|
|
|
|
|
|
|
/* DMA2 Stream3 or Stream6 Config */
|
|
|
|
|
DMA_DeInit(SD_SDIO_DMA_STREAM);
|
|
|
|
|
|
|
|
|
|
SDDMA_InitStructure.DMA_Channel = SD_SDIO_DMA_CHANNEL;
|
|
|
|
|
SDDMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_ADDRESS;
|
|
|
|
|
SDDMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)BufferSRC;
|
|
|
|
|
SDDMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral;
|
|
|
|
|
SDDMA_InitStructure.DMA_BufferSize = BufferSize;
|
|
|
|
|
SDDMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
|
|
|
|
|
SDDMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
|
|
|
|
|
SDDMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
|
|
|
|
|
SDDMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
|
|
|
|
|
SDDMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
|
|
|
|
|
SDDMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
|
|
|
|
|
SDDMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
|
|
|
|
|
SDDMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full;
|
|
|
|
|
SDDMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_INC4;
|
|
|
|
|
SDDMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_INC4;
|
|
|
|
|
DMA_Init(SD_SDIO_DMA_STREAM, &SDDMA_InitStructure);
|
|
|
|
|
DMA_ITConfig(SD_SDIO_DMA_STREAM, DMA_IT_TC, ENABLE);
|
|
|
|
|
DMA_FlowControllerConfig(SD_SDIO_DMA_STREAM, DMA_FlowCtrl_Peripheral);
|
|
|
|
|
|
|
|
|
|
/* DMA2 Stream3 or Stream6 enable */
|
|
|
|
|
DMA_Cmd(SD_SDIO_DMA_STREAM, ENABLE);
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* @brief Configures the DMA2 Channel4 for SDIO Rx request.
|
|
|
|
|
* @param BufferDST: pointer to the destination buffer
|
|
|
|
|
* @param BufferSize: buffer size
|
|
|
|
|
* @retval None
|
|
|
|
|
*/
|
|
|
|
|
void SD_LowLevel_DMA_RxConfig(uint32_t *BufferDST, uint32_t BufferSize)
|
|
|
|
|
{
|
|
|
|
|
DMA_InitTypeDef SDDMA_InitStructure;
|
|
|
|
|
|
|
|
|
|
DMA_ClearFlag(SD_SDIO_DMA_STREAM, SD_SDIO_DMA_FLAG_FEIF | SD_SDIO_DMA_FLAG_DMEIF | SD_SDIO_DMA_FLAG_TEIF | SD_SDIO_DMA_FLAG_HTIF | SD_SDIO_DMA_FLAG_TCIF);
|
|
|
|
|
|
|
|
|
|
/* DMA2 Stream3 or Stream6 disable */
|
|
|
|
|
DMA_Cmd(SD_SDIO_DMA_STREAM, DISABLE);
|
|
|
|
|
|
|
|
|
|
/* DMA2 Stream3 or Stream6 Config */
|
|
|
|
|
DMA_DeInit(SD_SDIO_DMA_STREAM);
|
|
|
|
|
|
|
|
|
|
SDDMA_InitStructure.DMA_Channel = SD_SDIO_DMA_CHANNEL;
|
|
|
|
|
SDDMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_ADDRESS;
|
|
|
|
|
SDDMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)BufferDST;
|
|
|
|
|
SDDMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
|
|
|
|
|
SDDMA_InitStructure.DMA_BufferSize = BufferSize;
|
|
|
|
|
SDDMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
|
|
|
|
|
SDDMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
|
|
|
|
|
SDDMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
|
|
|
|
|
SDDMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
|
|
|
|
|
SDDMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
|
|
|
|
|
SDDMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
|
|
|
|
|
SDDMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
|
|
|
|
|
SDDMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full;
|
|
|
|
|
SDDMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_INC4;
|
|
|
|
|
SDDMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_INC4;
|
|
|
|
|
DMA_Init(SD_SDIO_DMA_STREAM, &SDDMA_InitStructure);
|
|
|
|
|
DMA_ITConfig(SD_SDIO_DMA_STREAM, DMA_IT_TC, ENABLE);
|
|
|
|
|
DMA_FlowControllerConfig(SD_SDIO_DMA_STREAM, DMA_FlowCtrl_Peripheral);
|
|
|
|
|
|
|
|
|
|
/* DMA2 Stream3 or Stream6 enable */
|
|
|
|
|
DMA_Cmd(SD_SDIO_DMA_STREAM, ENABLE);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
