8f1eced69d
USB serial is now working for F7. Internal file storage is now working for F7. The flash is laid out a bit differently to the F4 - 4 x 32K, 1 x 128K with the rest 256K, so the internal storage is 96K. Added more pind definitions for STM32F7DISC board. Made USART1 be the default HWUART repl. The STLINK usb connector also looks like a USB serial port which is attached to USART1 on the STM32F7DISC.
223 lines
8.7 KiB
C
223 lines
8.7 KiB
C
/*
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* This file is part of the Micro Python 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, 2014 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 STM32_HAL_H
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#include "flash.h"
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#if defined(STM32F7)
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// FLASH_FLAG_PGSERR (Programming Sequence Error) was renamed to
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// FLASH_FLAG_ERSERR (Erasing Sequence Error) in STM32F7
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#define FLASH_FLAG_PGSERR FLASH_FLAG_ERSERR
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#endif
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#if defined(STM32F7)
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/* Base address of the Flash sectors */
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#define ADDR_FLASH_SECTOR_0 ((uint32_t)0x08000000) /* Base @ of Sector 0, 32 Kbytes */
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#define ADDR_FLASH_SECTOR_1 ((uint32_t)0x08008000) /* Base @ of Sector 1, 32 Kbytes */
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#define ADDR_FLASH_SECTOR_2 ((uint32_t)0x08010000) /* Base @ of Sector 2, 32 Kbytes */
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#define ADDR_FLASH_SECTOR_3 ((uint32_t)0x08018000) /* Base @ of Sector 3, 32 Kbytes */
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#define ADDR_FLASH_SECTOR_4 ((uint32_t)0x08020000) /* Base @ of Sector 4, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_5 ((uint32_t)0x08040000) /* Base @ of Sector 5, 256 Kbytes */
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#define ADDR_FLASH_SECTOR_6 ((uint32_t)0x08080000) /* Base @ of Sector 6, 256 Kbytes */
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#define ADDR_FLASH_SECTOR_7 ((uint32_t)0x080C0000) /* Base @ of Sector 7, 256 Kbytes */
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#define ADDR_FLASH_END ((uint32_t)0x08100000) /* 1 Mbytes total */
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#else
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/* Base address of the Flash sectors */
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#define ADDR_FLASH_SECTOR_0 ((uint32_t)0x08000000) /* Base @ of Sector 0, 16 Kbytes */
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#define ADDR_FLASH_SECTOR_1 ((uint32_t)0x08004000) /* Base @ of Sector 1, 16 Kbytes */
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#define ADDR_FLASH_SECTOR_2 ((uint32_t)0x08008000) /* Base @ of Sector 2, 16 Kbytes */
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#define ADDR_FLASH_SECTOR_3 ((uint32_t)0x0800C000) /* Base @ of Sector 3, 16 Kbytes */
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#define ADDR_FLASH_SECTOR_4 ((uint32_t)0x08010000) /* Base @ of Sector 4, 64 Kbytes */
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#define ADDR_FLASH_SECTOR_5 ((uint32_t)0x08020000) /* Base @ of Sector 5, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_6 ((uint32_t)0x08040000) /* Base @ of Sector 6, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_7 ((uint32_t)0x08060000) /* Base @ of Sector 7, 128 Kbytes */
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#if !defined(FLASH_SECTOR_8)
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#define ADDR_FLASH_END ((uint32_t)0x08080000) /* 512 Kbytes total */
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#else
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#define ADDR_FLASH_SECTOR_8 ((uint32_t)0x08080000) /* Base @ of Sector 8, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_9 ((uint32_t)0x080A0000) /* Base @ of Sector 9, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_10 ((uint32_t)0x080C0000) /* Base @ of Sector 10, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_11 ((uint32_t)0x080E0000) /* Base @ of Sector 11, 128 Kbytes */
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#define ADDR_FLASH_END ((uint32_t)0x08100000) /* 1 Mbytes total */
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#endif
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#endif
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static const uint32_t flash_info_table[26] = {
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ADDR_FLASH_SECTOR_0, FLASH_SECTOR_0,
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ADDR_FLASH_SECTOR_1, FLASH_SECTOR_1,
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ADDR_FLASH_SECTOR_2, FLASH_SECTOR_2,
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ADDR_FLASH_SECTOR_3, FLASH_SECTOR_3,
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ADDR_FLASH_SECTOR_4, FLASH_SECTOR_4,
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ADDR_FLASH_SECTOR_5, FLASH_SECTOR_5,
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ADDR_FLASH_SECTOR_6, FLASH_SECTOR_6,
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ADDR_FLASH_SECTOR_7, FLASH_SECTOR_7,
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#if defined(FLASH_SECTOR_8)
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ADDR_FLASH_SECTOR_8, FLASH_SECTOR_8,
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ADDR_FLASH_SECTOR_9, FLASH_SECTOR_9,
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ADDR_FLASH_SECTOR_10, FLASH_SECTOR_10,
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ADDR_FLASH_SECTOR_11, FLASH_SECTOR_11,
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#endif
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ADDR_FLASH_END, 0,
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};
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uint32_t flash_get_sector_info(uint32_t addr, uint32_t *start_addr, uint32_t *size) {
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if (addr >= flash_info_table[0]) {
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for (int i = 0; i < 24; i += 2) {
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if (addr < flash_info_table[i + 2]) {
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if (start_addr != NULL) {
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*start_addr = flash_info_table[i];
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}
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if (size != NULL) {
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*size = flash_info_table[i + 2] - flash_info_table[i];
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}
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return flash_info_table[i + 1];
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}
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}
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}
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return 0;
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}
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void flash_erase(uint32_t flash_dest, const uint32_t *src, uint32_t num_word32) {
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// check there is something to write
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if (num_word32 == 0) {
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return;
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}
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// unlock
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HAL_FLASH_Unlock();
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// Clear pending flags (if any)
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__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |
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FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
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// erase the sector(s)
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FLASH_EraseInitTypeDef EraseInitStruct;
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EraseInitStruct.TypeErase = TYPEERASE_SECTORS;
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EraseInitStruct.VoltageRange = VOLTAGE_RANGE_3; // voltage range needs to be 2.7V to 3.6V
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EraseInitStruct.Sector = flash_get_sector_info(flash_dest, NULL, NULL);
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EraseInitStruct.NbSectors = flash_get_sector_info(flash_dest + 4 * num_word32 - 1, NULL, NULL) - EraseInitStruct.Sector + 1;
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uint32_t SectorError = 0;
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if (HAL_FLASHEx_Erase(&EraseInitStruct, &SectorError) != HAL_OK) {
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// error occurred during sector erase
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HAL_FLASH_Lock(); // lock the flash
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return;
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}
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}
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/*
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// erase the sector using an interrupt
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void flash_erase_it(uint32_t flash_dest, const uint32_t *src, uint32_t num_word32) {
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// check there is something to write
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if (num_word32 == 0) {
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return;
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}
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// unlock
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HAL_FLASH_Unlock();
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// Clear pending flags (if any)
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__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |
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FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR);
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// erase the sector(s)
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FLASH_EraseInitTypeDef EraseInitStruct;
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EraseInitStruct.TypeErase = TYPEERASE_SECTORS;
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EraseInitStruct.VoltageRange = VOLTAGE_RANGE_3; // voltage range needs to be 2.7V to 3.6V
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EraseInitStruct.Sector = flash_get_sector_info(flash_dest, NULL, NULL);
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EraseInitStruct.NbSectors = flash_get_sector_info(flash_dest + 4 * num_word32 - 1, NULL, NULL) - EraseInitStruct.Sector + 1;
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if (HAL_FLASHEx_Erase_IT(&EraseInitStruct) != HAL_OK) {
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// error occurred during sector erase
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HAL_FLASH_Lock(); // lock the flash
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return;
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}
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}
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*/
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void flash_write(uint32_t flash_dest, const uint32_t *src, uint32_t num_word32) {
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// program the flash word by word
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for (int i = 0; i < num_word32; i++) {
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if (HAL_FLASH_Program(TYPEPROGRAM_WORD, flash_dest, *src) != HAL_OK) {
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// error occurred during flash write
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HAL_FLASH_Lock(); // lock the flash
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return;
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}
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flash_dest += 4;
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src += 1;
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}
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// lock the flash
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HAL_FLASH_Lock();
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}
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/*
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use erase, then write
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void flash_erase_and_write(uint32_t flash_dest, const uint32_t *src, uint32_t num_word32) {
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// check there is something to write
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if (num_word32 == 0) {
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return;
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}
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// unlock
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HAL_FLASH_Unlock();
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// Clear pending flags (if any)
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__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |
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FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR);
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// erase the sector(s)
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FLASH_EraseInitTypeDef EraseInitStruct;
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EraseInitStruct.TypeErase = TYPEERASE_SECTORS;
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EraseInitStruct.VoltageRange = VOLTAGE_RANGE_3; // voltage range needs to be 2.7V to 3.6V
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EraseInitStruct.Sector = flash_get_sector_info(flash_dest, NULL, NULL);
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EraseInitStruct.NbSectors = flash_get_sector_info(flash_dest + 4 * num_word32 - 1, NULL, NULL) - EraseInitStruct.Sector + 1;
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uint32_t SectorError = 0;
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if (HAL_FLASHEx_Erase(&EraseInitStruct, &SectorError) != HAL_OK) {
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// error occurred during sector erase
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HAL_FLASH_Lock(); // lock the flash
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return;
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}
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// program the flash word by word
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for (int i = 0; i < num_word32; i++) {
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if (HAL_FLASH_Program(TYPEPROGRAM_WORD, flash_dest, *src) != HAL_OK) {
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// error occurred during flash write
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HAL_FLASH_Lock(); // lock the flash
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return;
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}
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flash_dest += 4;
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src += 1;
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}
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// lock the flash
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HAL_FLASH_Lock();
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}
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*/
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