2015-10-08 05:26:04 +01:00
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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013-2015 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdio.h>
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2017-01-27 12:11:59 +00:00
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#include <string.h>
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2015-10-08 05:26:04 +01:00
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#include "modmachine.h"
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#include "py/gc.h"
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#include "py/runtime.h"
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2015-10-30 23:03:58 +00:00
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#include "py/mphal.h"
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2015-12-14 01:40:09 +00:00
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#include "extmod/machine_mem.h"
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2017-01-31 01:36:20 +00:00
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#include "extmod/machine_signal.h"
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2016-10-06 02:12:20 +01:00
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#include "extmod/machine_pulse.h"
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2016-04-12 13:51:39 +01:00
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#include "extmod/machine_i2c.h"
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2016-10-17 03:16:47 +01:00
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#include "lib/utils/pyexec.h"
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2017-01-27 12:11:59 +00:00
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#include "lib/oofatfs/ff.h"
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#include "extmod/vfs.h"
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2017-01-29 08:20:27 +00:00
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#include "extmod/vfs_fat.h"
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2015-10-08 05:26:04 +01:00
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#include "gccollect.h"
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#include "irq.h"
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2017-02-06 04:13:30 +00:00
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#include "pybthread.h"
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2015-10-08 05:26:04 +01:00
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#include "rng.h"
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#include "storage.h"
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2015-10-19 22:48:21 +01:00
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#include "pin.h"
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2015-10-08 05:26:04 +01:00
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#include "timer.h"
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#include "usb.h"
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2015-11-07 11:03:12 +00:00
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#include "rtc.h"
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stmhal/modmachine: Initial attempt to add I2C & SPI classes.
In new hardware API, these classes implement master modes of interfaces,
and "mode" parameter is not accepted. Trying to implement new HW API
in terms of older pyb module leaves variuos corner cases:
In new HW API, I2C(1) means "I2C #1 in master mode" (? depends on
interpretation), while in old API, it means "I2C #1, with no settings
changes".
For I2C class, it's easy to make mode optional, because that's last
positional param, but for SPI, there's "baudrate" after it (which
is inconsistent with I2C, which requires "baudrate" to be kwonly-arg).
2015-11-14 14:13:58 +00:00
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#include "i2c.h"
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#include "spi.h"
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2017-05-16 08:40:22 +01:00
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#include "uart.h"
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2016-09-03 15:12:48 +01:00
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#include "wdt.h"
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2017-08-24 02:38:39 +01:00
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#include "genhdr/pllfreqtable.h"
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2015-10-08 05:26:04 +01:00
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2016-09-06 05:20:19 +01:00
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#if defined(MCU_SERIES_F4)
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// the HAL does not define these constants
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#define RCC_CSR_IWDGRSTF (0x20000000)
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#define RCC_CSR_PINRSTF (0x04000000)
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#elif defined(MCU_SERIES_L4)
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// L4 does not have a POR, so use BOR instead
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#define RCC_CSR_PORRSTF RCC_CSR_BORRSTF
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#endif
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#define PYB_RESET_SOFT (0)
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#define PYB_RESET_POWER_ON (1)
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#define PYB_RESET_HARD (2)
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#define PYB_RESET_WDT (3)
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#define PYB_RESET_DEEPSLEEP (4)
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STATIC uint32_t reset_cause;
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void machine_init(void) {
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#if defined(MCU_SERIES_F4)
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if (PWR->CSR & PWR_CSR_SBF) {
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// came out of standby
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reset_cause = PYB_RESET_DEEPSLEEP;
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2016-09-27 06:49:35 +01:00
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PWR->CR |= PWR_CR_CSBF;
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2016-09-06 05:20:19 +01:00
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} else
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2017-08-23 08:00:02 +01:00
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#elif defined(MCU_SERIES_F7)
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if (PWR->CSR1 & PWR_CSR1_SBF) {
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// came out of standby
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reset_cause = PYB_RESET_DEEPSLEEP;
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PWR->CR1 |= PWR_CR1_CSBF;
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} else
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2016-09-06 05:20:19 +01:00
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#endif
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{
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// get reset cause from RCC flags
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uint32_t state = RCC->CSR;
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if (state & RCC_CSR_IWDGRSTF || state & RCC_CSR_WWDGRSTF) {
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reset_cause = PYB_RESET_WDT;
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} else if (state & RCC_CSR_PORRSTF || state & RCC_CSR_BORRSTF) {
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reset_cause = PYB_RESET_POWER_ON;
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} else if (state & RCC_CSR_PINRSTF) {
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reset_cause = PYB_RESET_HARD;
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} else {
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// default is soft reset
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reset_cause = PYB_RESET_SOFT;
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}
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}
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// clear RCC reset flags
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2016-09-27 06:49:35 +01:00
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RCC->CSR |= RCC_CSR_RMVF;
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2016-09-06 05:20:19 +01:00
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}
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2015-10-08 05:26:04 +01:00
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// machine.info([dump_alloc_table])
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// Print out lots of information about the board.
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STATIC mp_obj_t machine_info(mp_uint_t n_args, const mp_obj_t *args) {
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// get and print unique id; 96 bits
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{
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2015-10-29 16:03:10 +00:00
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byte *id = (byte*)MP_HAL_UNIQUE_ID_ADDRESS;
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2015-10-08 05:26:04 +01:00
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printf("ID=%02x%02x%02x%02x:%02x%02x%02x%02x:%02x%02x%02x%02x\n", id[0], id[1], id[2], id[3], id[4], id[5], id[6], id[7], id[8], id[9], id[10], id[11]);
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}
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// get and print clock speeds
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// SYSCLK=168MHz, HCLK=168MHz, PCLK1=42MHz, PCLK2=84MHz
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{
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printf("S=%lu\nH=%lu\nP1=%lu\nP2=%lu\n",
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HAL_RCC_GetSysClockFreq(),
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HAL_RCC_GetHCLKFreq(),
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HAL_RCC_GetPCLK1Freq(),
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HAL_RCC_GetPCLK2Freq());
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}
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// to print info about memory
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{
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printf("_etext=%p\n", &_etext);
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printf("_sidata=%p\n", &_sidata);
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printf("_sdata=%p\n", &_sdata);
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printf("_edata=%p\n", &_edata);
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printf("_sbss=%p\n", &_sbss);
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printf("_ebss=%p\n", &_ebss);
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printf("_estack=%p\n", &_estack);
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printf("_ram_start=%p\n", &_ram_start);
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printf("_heap_start=%p\n", &_heap_start);
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printf("_heap_end=%p\n", &_heap_end);
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printf("_ram_end=%p\n", &_ram_end);
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}
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// qstr info
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{
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mp_uint_t n_pool, n_qstr, n_str_data_bytes, n_total_bytes;
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qstr_pool_info(&n_pool, &n_qstr, &n_str_data_bytes, &n_total_bytes);
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printf("qstr:\n n_pool=" UINT_FMT "\n n_qstr=" UINT_FMT "\n n_str_data_bytes=" UINT_FMT "\n n_total_bytes=" UINT_FMT "\n", n_pool, n_qstr, n_str_data_bytes, n_total_bytes);
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}
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// GC info
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{
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gc_info_t info;
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gc_info(&info);
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printf("GC:\n");
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printf(" " UINT_FMT " total\n", info.total);
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printf(" " UINT_FMT " : " UINT_FMT "\n", info.used, info.free);
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printf(" 1=" UINT_FMT " 2=" UINT_FMT " m=" UINT_FMT "\n", info.num_1block, info.num_2block, info.max_block);
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}
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// free space on flash
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{
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2017-01-27 12:11:59 +00:00
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for (mp_vfs_mount_t *vfs = MP_STATE_VM(vfs_mount_table); vfs != NULL; vfs = vfs->next) {
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if (strncmp("/flash", vfs->str, vfs->len) == 0) {
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// assumes that it's a FatFs filesystem
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fs_user_mount_t *vfs_fat = MP_OBJ_TO_PTR(vfs->obj);
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DWORD nclst;
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f_getfree(&vfs_fat->fatfs, &nclst);
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printf("LFS free: %u bytes\n", (uint)(nclst * vfs_fat->fatfs.csize * 512));
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break;
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}
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}
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2015-10-08 05:26:04 +01:00
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}
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2017-02-06 04:13:30 +00:00
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#if MICROPY_PY_THREAD
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pyb_thread_dump();
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#endif
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2015-10-08 05:26:04 +01:00
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if (n_args == 1) {
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// arg given means dump gc allocation table
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gc_dump_alloc_table();
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}
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_info_obj, 0, 1, machine_info);
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// Returns a string of 12 bytes (96 bits), which is the unique ID for the MCU.
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STATIC mp_obj_t machine_unique_id(void) {
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2016-04-17 12:18:50 +01:00
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byte *id = (byte*)MP_HAL_UNIQUE_ID_ADDRESS;
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2015-10-08 05:26:04 +01:00
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return mp_obj_new_bytes(id, 12);
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}
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MP_DEFINE_CONST_FUN_OBJ_0(machine_unique_id_obj, machine_unique_id);
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// Resets the pyboard in a manner similar to pushing the external RESET button.
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STATIC mp_obj_t machine_reset(void) {
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NVIC_SystemReset();
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_0(machine_reset_obj, machine_reset);
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2016-10-17 03:16:47 +01:00
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STATIC mp_obj_t machine_soft_reset(void) {
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pyexec_system_exit = PYEXEC_FORCED_EXIT;
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nlr_raise(mp_obj_new_exception(&mp_type_SystemExit));
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}
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MP_DEFINE_CONST_FUN_OBJ_0(machine_soft_reset_obj, machine_soft_reset);
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2015-10-08 05:26:04 +01:00
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// Activate the bootloader without BOOT* pins.
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STATIC NORETURN mp_obj_t machine_bootloader(void) {
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pyb_usb_dev_deinit();
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storage_flush();
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HAL_RCC_DeInit();
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HAL_DeInit();
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2017-08-23 07:58:48 +01:00
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#if (__MPU_PRESENT == 1)
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// MPU must be disabled for bootloader to function correctly
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HAL_MPU_Disable();
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#endif
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2015-10-08 05:26:04 +01:00
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#if defined(MCU_SERIES_F7)
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// arm-none-eabi-gcc 4.9.0 does not correctly inline this
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// MSP function, so we write it out explicitly here.
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//__set_MSP(*((uint32_t*) 0x1FF00000));
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__ASM volatile ("movw r3, #0x0000\nmovt r3, #0x1FF0\nldr r3, [r3, #0]\nMSR msp, r3\n" : : : "r3", "sp");
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((void (*)(void)) *((uint32_t*) 0x1FF00004))();
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#else
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__HAL_REMAPMEMORY_SYSTEMFLASH();
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// arm-none-eabi-gcc 4.9.0 does not correctly inline this
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// MSP function, so we write it out explicitly here.
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//__set_MSP(*((uint32_t*) 0x00000000));
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__ASM volatile ("movs r3, #0\nldr r3, [r3, #0]\nMSR msp, r3\n" : : : "r3", "sp");
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((void (*)(void)) *((uint32_t*) 0x00000004))();
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#endif
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while (1);
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}
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MP_DEFINE_CONST_FUN_OBJ_0(machine_bootloader_obj, machine_bootloader);
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// get or set the MCU frequencies
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STATIC mp_uint_t machine_freq_calc_ahb_div(mp_uint_t wanted_div) {
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if (wanted_div <= 1) { return RCC_SYSCLK_DIV1; }
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else if (wanted_div <= 2) { return RCC_SYSCLK_DIV2; }
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else if (wanted_div <= 4) { return RCC_SYSCLK_DIV4; }
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else if (wanted_div <= 8) { return RCC_SYSCLK_DIV8; }
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else if (wanted_div <= 16) { return RCC_SYSCLK_DIV16; }
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else if (wanted_div <= 64) { return RCC_SYSCLK_DIV64; }
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else if (wanted_div <= 128) { return RCC_SYSCLK_DIV128; }
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else if (wanted_div <= 256) { return RCC_SYSCLK_DIV256; }
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else { return RCC_SYSCLK_DIV512; }
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}
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STATIC mp_uint_t machine_freq_calc_apb_div(mp_uint_t wanted_div) {
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if (wanted_div <= 1) { return RCC_HCLK_DIV1; }
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else if (wanted_div <= 2) { return RCC_HCLK_DIV2; }
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else if (wanted_div <= 4) { return RCC_HCLK_DIV4; }
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else if (wanted_div <= 8) { return RCC_HCLK_DIV8; }
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else { return RCC_SYSCLK_DIV16; }
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}
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STATIC mp_obj_t machine_freq(mp_uint_t n_args, const mp_obj_t *args) {
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if (n_args == 0) {
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// get
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mp_obj_t tuple[4] = {
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mp_obj_new_int(HAL_RCC_GetSysClockFreq()),
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mp_obj_new_int(HAL_RCC_GetHCLKFreq()),
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mp_obj_new_int(HAL_RCC_GetPCLK1Freq()),
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mp_obj_new_int(HAL_RCC_GetPCLK2Freq()),
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};
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return mp_obj_new_tuple(4, tuple);
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} else {
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// set
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mp_int_t wanted_sysclk = mp_obj_get_int(args[0]) / 1000000;
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2016-03-24 15:17:58 +00:00
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#if defined(MCU_SERIES_L4)
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2017-08-09 05:40:45 +01:00
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mp_raise_NotImplementedError("machine.freq set not supported yet");
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2016-03-24 15:17:58 +00:00
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#endif
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2015-10-08 05:26:04 +01:00
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// default PLL parameters that give 48MHz on PLL48CK
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uint32_t m = HSE_VALUE / 1000000, n = 336, p = 2, q = 7;
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uint32_t sysclk_source;
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2017-08-24 02:38:39 +01:00
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// search for a valid PLL configuration that keeps USB at 48MHz
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for (const uint16_t *pll = &pll_freq_table[MP_ARRAY_SIZE(pll_freq_table) - 1]; pll >= &pll_freq_table[0]; --pll) {
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uint32_t sys = *pll & 0xff;
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if (sys <= wanted_sysclk) {
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m = (*pll >> 10) & 0x3f;
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p = ((*pll >> 7) & 0x6) + 2;
|
|
|
|
if (m == 0) {
|
|
|
|
// special entry for using HSI directly
|
|
|
|
sysclk_source = RCC_SYSCLKSOURCE_HSI;
|
|
|
|
goto set_clk;
|
|
|
|
} else if (m == 1) {
|
|
|
|
// special entry for using HSE directly
|
|
|
|
sysclk_source = RCC_SYSCLKSOURCE_HSE;
|
|
|
|
goto set_clk;
|
|
|
|
} else {
|
|
|
|
// use PLL
|
2015-10-08 05:26:04 +01:00
|
|
|
sysclk_source = RCC_SYSCLKSOURCE_PLLCLK;
|
2017-08-24 02:38:39 +01:00
|
|
|
uint32_t vco_out = sys * p;
|
|
|
|
n = vco_out * m / (HSE_VALUE / 1000000);
|
|
|
|
q = vco_out / 48;
|
2015-10-08 05:26:04 +01:00
|
|
|
goto set_clk;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2017-08-24 02:38:39 +01:00
|
|
|
mp_raise_ValueError("can't make valid freq");
|
2015-10-08 05:26:04 +01:00
|
|
|
|
|
|
|
set_clk:
|
|
|
|
//printf("%lu %lu %lu %lu %lu\n", sysclk_source, m, n, p, q);
|
|
|
|
|
|
|
|
// let the USB CDC have a chance to process before we change the clock
|
2017-03-02 04:02:57 +00:00
|
|
|
mp_hal_delay_ms(5);
|
2015-10-08 05:26:04 +01:00
|
|
|
|
|
|
|
// desired system clock source is in sysclk_source
|
|
|
|
RCC_ClkInitTypeDef RCC_ClkInitStruct;
|
|
|
|
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
|
|
|
|
if (sysclk_source == RCC_SYSCLKSOURCE_PLLCLK) {
|
|
|
|
// set HSE as system clock source to allow modification of the PLL configuration
|
|
|
|
// we then change to PLL after re-configuring PLL
|
|
|
|
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSE;
|
|
|
|
} else {
|
|
|
|
// directly set the system clock source as desired
|
|
|
|
RCC_ClkInitStruct.SYSCLKSource = sysclk_source;
|
|
|
|
}
|
|
|
|
wanted_sysclk *= 1000000;
|
|
|
|
if (n_args >= 2) {
|
|
|
|
// note: AHB freq required to be >= 14.2MHz for USB operation
|
|
|
|
RCC_ClkInitStruct.AHBCLKDivider = machine_freq_calc_ahb_div(wanted_sysclk / mp_obj_get_int(args[1]));
|
|
|
|
} else {
|
|
|
|
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
|
|
|
|
}
|
|
|
|
if (n_args >= 3) {
|
|
|
|
RCC_ClkInitStruct.APB1CLKDivider = machine_freq_calc_apb_div(wanted_sysclk / mp_obj_get_int(args[2]));
|
|
|
|
} else {
|
|
|
|
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
|
|
|
|
}
|
|
|
|
if (n_args >= 4) {
|
|
|
|
RCC_ClkInitStruct.APB2CLKDivider = machine_freq_calc_apb_div(wanted_sysclk / mp_obj_get_int(args[3]));
|
|
|
|
} else {
|
|
|
|
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
|
|
|
|
}
|
2015-11-23 23:52:09 +00:00
|
|
|
#if defined(MICROPY_HW_CLK_LAST_FREQ) && MICROPY_HW_CLK_LAST_FREQ
|
2015-11-07 11:03:12 +00:00
|
|
|
uint32_t h = RCC_ClkInitStruct.AHBCLKDivider >> 4;
|
|
|
|
uint32_t b1 = RCC_ClkInitStruct.APB1CLKDivider >> 10;
|
|
|
|
uint32_t b2 = RCC_ClkInitStruct.APB2CLKDivider >> 10;
|
2015-11-23 23:52:09 +00:00
|
|
|
#endif
|
2015-10-08 05:26:04 +01:00
|
|
|
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK) {
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
// re-configure PLL
|
|
|
|
// even if we don't use the PLL for the system clock, we still need it for USB, RNG and SDIO
|
|
|
|
RCC_OscInitTypeDef RCC_OscInitStruct;
|
|
|
|
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
|
|
|
|
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
|
|
|
|
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
|
|
|
|
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
|
|
|
|
RCC_OscInitStruct.PLL.PLLM = m;
|
|
|
|
RCC_OscInitStruct.PLL.PLLN = n;
|
|
|
|
RCC_OscInitStruct.PLL.PLLP = p;
|
|
|
|
RCC_OscInitStruct.PLL.PLLQ = q;
|
|
|
|
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
// set PLL as system clock source if wanted
|
|
|
|
if (sysclk_source == RCC_SYSCLKSOURCE_PLLCLK) {
|
2016-03-24 15:17:58 +00:00
|
|
|
#if !defined(MICROPY_HW_FLASH_LATENCY)
|
|
|
|
#define MICROPY_HW_FLASH_LATENCY FLASH_LATENCY_5
|
|
|
|
#endif
|
2015-10-08 05:26:04 +01:00
|
|
|
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK;
|
|
|
|
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
|
2016-03-24 15:17:58 +00:00
|
|
|
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, MICROPY_HW_FLASH_LATENCY) != HAL_OK) {
|
2015-10-08 05:26:04 +01:00
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-11-07 11:03:12 +00:00
|
|
|
#if defined(MICROPY_HW_CLK_LAST_FREQ) && MICROPY_HW_CLK_LAST_FREQ
|
|
|
|
#if defined(MCU_SERIES_F7)
|
|
|
|
#define FREQ_BKP BKP31R
|
|
|
|
#else
|
|
|
|
#define FREQ_BKP BKP19R
|
|
|
|
#endif
|
|
|
|
// qqqqqqqq pppppppp nnnnnnnn nnmmmmmm
|
|
|
|
// qqqqQQQQ ppppppPP nNNNNNNN NNMMMMMM
|
|
|
|
// 222111HH HHQQQQPP nNNNNNNN NNMMMMMM
|
|
|
|
p = (p / 2) - 1;
|
|
|
|
RTC->FREQ_BKP = m
|
|
|
|
| (n << 6) | (p << 16) | (q << 18)
|
|
|
|
| (h << 22)
|
|
|
|
| (b1 << 26)
|
|
|
|
| (b2 << 29);
|
|
|
|
#endif
|
|
|
|
|
2015-10-08 05:26:04 +01:00
|
|
|
return mp_const_none;
|
|
|
|
|
|
|
|
fail:;
|
|
|
|
void NORETURN __fatal_error(const char *msg);
|
|
|
|
__fatal_error("can't change freq");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_freq_obj, 0, 4, machine_freq);
|
|
|
|
|
|
|
|
STATIC mp_obj_t machine_sleep(void) {
|
2016-03-24 15:17:58 +00:00
|
|
|
#if defined(MCU_SERIES_L4)
|
|
|
|
|
|
|
|
// Enter Stop 1 mode
|
|
|
|
__HAL_RCC_WAKEUPSTOP_CLK_CONFIG(RCC_STOP_WAKEUPCLOCK_MSI);
|
|
|
|
HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
|
|
|
|
|
|
|
|
// reconfigure system clock after wakeup
|
|
|
|
// Enable Power Control clock
|
|
|
|
__HAL_RCC_PWR_CLK_ENABLE();
|
|
|
|
|
|
|
|
// Get the Oscillators configuration according to the internal RCC registers
|
|
|
|
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
|
|
|
|
HAL_RCC_GetOscConfig(&RCC_OscInitStruct);
|
|
|
|
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
|
|
|
|
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
|
|
|
|
HAL_RCC_OscConfig(&RCC_OscInitStruct);
|
|
|
|
|
|
|
|
// Get the Clocks configuration according to the internal RCC registers
|
|
|
|
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
|
|
|
|
uint32_t pFLatency = 0;
|
|
|
|
HAL_RCC_GetClockConfig(&RCC_ClkInitStruct, &pFLatency);
|
|
|
|
|
|
|
|
// Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 clock dividers
|
|
|
|
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK;
|
|
|
|
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
|
|
|
|
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, pFLatency);
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
2015-10-08 05:26:04 +01:00
|
|
|
// takes longer to wake but reduces stop current
|
|
|
|
HAL_PWREx_EnableFlashPowerDown();
|
|
|
|
|
2017-08-23 08:00:02 +01:00
|
|
|
# if defined(MCU_SERIES_F7)
|
|
|
|
HAL_PWR_EnterSTOPMode((PWR_CR1_LPDS | PWR_CR1_LPUDS | PWR_CR1_FPDS | PWR_CR1_UDEN), PWR_STOPENTRY_WFI);
|
|
|
|
# else
|
2015-10-08 05:26:04 +01:00
|
|
|
HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
|
2017-08-23 08:00:02 +01:00
|
|
|
#endif
|
2015-10-08 05:26:04 +01:00
|
|
|
|
|
|
|
// reconfigure the system clock after waking up
|
|
|
|
|
|
|
|
// enable HSE
|
|
|
|
__HAL_RCC_HSE_CONFIG(RCC_HSE_ON);
|
|
|
|
while (!__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY)) {
|
|
|
|
}
|
|
|
|
|
|
|
|
// enable PLL
|
|
|
|
__HAL_RCC_PLL_ENABLE();
|
|
|
|
while (!__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY)) {
|
|
|
|
}
|
|
|
|
|
|
|
|
// select PLL as system clock source
|
|
|
|
MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, RCC_SYSCLKSOURCE_PLLCLK);
|
|
|
|
while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_PLL) {
|
|
|
|
}
|
|
|
|
|
2016-03-24 15:17:58 +00:00
|
|
|
#endif
|
|
|
|
|
2015-10-08 05:26:04 +01:00
|
|
|
return mp_const_none;
|
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_0(machine_sleep_obj, machine_sleep);
|
|
|
|
|
|
|
|
STATIC mp_obj_t machine_deepsleep(void) {
|
2015-11-07 11:03:12 +00:00
|
|
|
rtc_init_finalise();
|
|
|
|
|
2017-08-23 08:00:02 +01:00
|
|
|
#if defined(MCU_SERIES_L4)
|
2015-10-08 05:26:04 +01:00
|
|
|
printf("machine.deepsleep not supported yet\n");
|
|
|
|
#else
|
|
|
|
// We need to clear the PWR wake-up-flag before entering standby, since
|
|
|
|
// the flag may have been set by a previous wake-up event. Furthermore,
|
|
|
|
// we need to disable the wake-up sources while clearing this flag, so
|
|
|
|
// that if a source is active it does actually wake the device.
|
|
|
|
// See section 5.3.7 of RM0090.
|
|
|
|
|
|
|
|
// Note: we only support RTC ALRA, ALRB, WUT and TS.
|
|
|
|
// TODO support TAMP and WKUP (PA0 external pin).
|
|
|
|
uint32_t irq_bits = RTC_CR_ALRAIE | RTC_CR_ALRBIE | RTC_CR_WUTIE | RTC_CR_TSIE;
|
|
|
|
|
|
|
|
// save RTC interrupts
|
|
|
|
uint32_t save_irq_bits = RTC->CR & irq_bits;
|
|
|
|
|
|
|
|
// disable RTC interrupts
|
|
|
|
RTC->CR &= ~irq_bits;
|
|
|
|
|
|
|
|
// clear RTC wake-up flags
|
|
|
|
RTC->ISR &= ~(RTC_ISR_ALRAF | RTC_ISR_ALRBF | RTC_ISR_WUTF | RTC_ISR_TSF);
|
|
|
|
|
2017-08-23 08:00:02 +01:00
|
|
|
#if defined(MCU_SERIES_F7)
|
|
|
|
// disable wake-up flags
|
|
|
|
PWR->CSR2 &= ~(PWR_CSR2_EWUP6 | PWR_CSR2_EWUP5 | PWR_CSR2_EWUP4 | PWR_CSR2_EWUP3 | PWR_CSR2_EWUP2 | PWR_CSR2_EWUP1);
|
|
|
|
// clear global wake-up flag
|
|
|
|
PWR->CR2 |= PWR_CR2_CWUPF6 | PWR_CR2_CWUPF5 | PWR_CR2_CWUPF4 | PWR_CR2_CWUPF3 | PWR_CR2_CWUPF2 | PWR_CR2_CWUPF1;
|
|
|
|
#else
|
2015-10-08 05:26:04 +01:00
|
|
|
// clear global wake-up flag
|
|
|
|
PWR->CR |= PWR_CR_CWUF;
|
2017-08-23 08:00:02 +01:00
|
|
|
#endif
|
2015-10-08 05:26:04 +01:00
|
|
|
|
|
|
|
// enable previously-enabled RTC interrupts
|
|
|
|
RTC->CR |= save_irq_bits;
|
|
|
|
|
|
|
|
// enter standby mode
|
|
|
|
HAL_PWR_EnterSTANDBYMode();
|
|
|
|
// we never return; MCU is reset on exit from standby
|
|
|
|
#endif
|
|
|
|
return mp_const_none;
|
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_0(machine_deepsleep_obj, machine_deepsleep);
|
|
|
|
|
|
|
|
STATIC mp_obj_t machine_reset_cause(void) {
|
2016-09-06 05:20:19 +01:00
|
|
|
return MP_OBJ_NEW_SMALL_INT(reset_cause);
|
2015-10-08 05:26:04 +01:00
|
|
|
}
|
|
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_0(machine_reset_cause_obj, machine_reset_cause);
|
|
|
|
|
2017-05-06 08:03:40 +01:00
|
|
|
STATIC const mp_rom_map_elem_t machine_module_globals_table[] = {
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_umachine) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_info), MP_ROM_PTR(&machine_info_obj) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_unique_id), MP_ROM_PTR(&machine_unique_id_obj) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_reset), MP_ROM_PTR(&machine_reset_obj) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_soft_reset), MP_ROM_PTR(&machine_soft_reset_obj) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_bootloader), MP_ROM_PTR(&machine_bootloader_obj) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_freq), MP_ROM_PTR(&machine_freq_obj) },
|
2015-10-08 05:26:04 +01:00
|
|
|
#if MICROPY_HW_ENABLE_RNG
|
2017-05-06 08:03:40 +01:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_rng), MP_ROM_PTR(&pyb_rng_get_obj) },
|
2015-10-08 05:26:04 +01:00
|
|
|
#endif
|
2017-05-06 08:03:40 +01:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_idle), MP_ROM_PTR(&pyb_wfi_obj) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_sleep), MP_ROM_PTR(&machine_sleep_obj) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_deepsleep), MP_ROM_PTR(&machine_deepsleep_obj) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_reset_cause), MP_ROM_PTR(&machine_reset_cause_obj) },
|
2016-09-06 05:20:19 +01:00
|
|
|
#if 0
|
2017-05-06 08:03:40 +01:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_wake_reason), MP_ROM_PTR(&machine_wake_reason_obj) },
|
2015-10-08 05:26:04 +01:00
|
|
|
#endif
|
|
|
|
|
2017-05-06 08:03:40 +01:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_disable_irq), MP_ROM_PTR(&pyb_disable_irq_obj) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_enable_irq), MP_ROM_PTR(&pyb_enable_irq_obj) },
|
2015-10-19 22:48:21 +01:00
|
|
|
|
2017-05-06 08:03:40 +01:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_time_pulse_us), MP_ROM_PTR(&machine_time_pulse_us_obj) },
|
2016-10-06 02:12:20 +01:00
|
|
|
|
2017-05-06 08:03:40 +01:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_mem8), MP_ROM_PTR(&machine_mem8_obj) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_mem16), MP_ROM_PTR(&machine_mem16_obj) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_mem32), MP_ROM_PTR(&machine_mem32_obj) },
|
2015-12-14 01:40:09 +00:00
|
|
|
|
2017-05-06 08:03:40 +01:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_Pin), MP_ROM_PTR(&pin_type) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_Signal), MP_ROM_PTR(&machine_signal_type) },
|
2015-10-19 22:48:21 +01:00
|
|
|
|
2015-10-08 05:26:04 +01:00
|
|
|
#if 0
|
2017-05-06 08:03:40 +01:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_RTC), MP_ROM_PTR(&pyb_rtc_type) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_ADC), MP_ROM_PTR(&pyb_adc_type) },
|
stmhal/modmachine: Initial attempt to add I2C & SPI classes.
In new hardware API, these classes implement master modes of interfaces,
and "mode" parameter is not accepted. Trying to implement new HW API
in terms of older pyb module leaves variuos corner cases:
In new HW API, I2C(1) means "I2C #1 in master mode" (? depends on
interpretation), while in old API, it means "I2C #1, with no settings
changes".
For I2C class, it's easy to make mode optional, because that's last
positional param, but for SPI, there's "baudrate" after it (which
is inconsistent with I2C, which requires "baudrate" to be kwonly-arg).
2015-11-14 14:13:58 +00:00
|
|
|
#endif
|
2017-05-06 08:03:40 +01:00
|
|
|
{ MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&machine_i2c_type) },
|
|
|
|
{ MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&machine_hard_spi_type) },
|
2017-05-16 08:40:22 +01:00
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{ MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&pyb_uart_type) },
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2017-05-06 08:03:40 +01:00
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{ MP_ROM_QSTR(MP_QSTR_WDT), MP_ROM_PTR(&pyb_wdt_type) },
|
stmhal/modmachine: Initial attempt to add I2C & SPI classes.
In new hardware API, these classes implement master modes of interfaces,
and "mode" parameter is not accepted. Trying to implement new HW API
in terms of older pyb module leaves variuos corner cases:
In new HW API, I2C(1) means "I2C #1 in master mode" (? depends on
interpretation), while in old API, it means "I2C #1, with no settings
changes".
For I2C class, it's easy to make mode optional, because that's last
positional param, but for SPI, there's "baudrate" after it (which
is inconsistent with I2C, which requires "baudrate" to be kwonly-arg).
2015-11-14 14:13:58 +00:00
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#if 0
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2017-05-06 08:03:40 +01:00
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{ MP_ROM_QSTR(MP_QSTR_Timer), MP_ROM_PTR(&pyb_timer_type) },
|
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{ MP_ROM_QSTR(MP_QSTR_HeartBeat), MP_ROM_PTR(&pyb_heartbeat_type) },
|
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{ MP_ROM_QSTR(MP_QSTR_SD), MP_ROM_PTR(&pyb_sd_type) },
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2015-10-08 05:26:04 +01:00
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// class constants
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2017-05-06 08:03:40 +01:00
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{ MP_ROM_QSTR(MP_QSTR_IDLE), MP_ROM_INT(PYB_PWR_MODE_ACTIVE) },
|
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{ MP_ROM_QSTR(MP_QSTR_SLEEP), MP_ROM_INT(PYB_PWR_MODE_LPDS) },
|
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{ MP_ROM_QSTR(MP_QSTR_DEEPSLEEP), MP_ROM_INT(PYB_PWR_MODE_HIBERNATE) },
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2016-09-06 05:20:19 +01:00
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#endif
|
2017-05-06 08:03:40 +01:00
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{ MP_ROM_QSTR(MP_QSTR_PWRON_RESET), MP_ROM_INT(PYB_RESET_POWER_ON) },
|
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{ MP_ROM_QSTR(MP_QSTR_HARD_RESET), MP_ROM_INT(PYB_RESET_HARD) },
|
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{ MP_ROM_QSTR(MP_QSTR_WDT_RESET), MP_ROM_INT(PYB_RESET_WDT) },
|
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{ MP_ROM_QSTR(MP_QSTR_DEEPSLEEP_RESET), MP_ROM_INT(PYB_RESET_DEEPSLEEP) },
|
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{ MP_ROM_QSTR(MP_QSTR_SOFT_RESET), MP_ROM_INT(PYB_RESET_SOFT) },
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2016-09-06 05:20:19 +01:00
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#if 0
|
2017-05-06 08:03:40 +01:00
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{ MP_ROM_QSTR(MP_QSTR_WLAN_WAKE), MP_ROM_INT(PYB_SLP_WAKED_BY_WLAN) },
|
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{ MP_ROM_QSTR(MP_QSTR_PIN_WAKE), MP_ROM_INT(PYB_SLP_WAKED_BY_GPIO) },
|
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{ MP_ROM_QSTR(MP_QSTR_RTC_WAKE), MP_ROM_INT(PYB_SLP_WAKED_BY_RTC) },
|
2015-10-08 05:26:04 +01:00
|
|
|
#endif
|
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};
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STATIC MP_DEFINE_CONST_DICT(machine_module_globals, machine_module_globals_table);
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const mp_obj_module_t machine_module = {
|
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t*)&machine_module_globals,
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};
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