init commit
SPI FLASH only, I2C eeprom later
This commit is contained in:
alexey
190
GENERAL/flash_general.c
Normal file
190
GENERAL/flash_general.c
Normal file
@@ -0,0 +1,190 @@
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#include "flash_general.h"
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FLASH_EraseInitTypeDef EraseInitStruct;
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extern HAL_StatusTypeDef res_hal;
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unsigned CRC_Update;
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//uint32_t PAGE_OFFSET = ((uint32_t)((4-1) * 0x0400));
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uint32_t PAGE_NUMB = 127;
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//----------------------------------------------------------
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/*-----------------BOOTLOADER FUNCTIONS-------------------*/
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/* Записать в память данные, произвольного размера */
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HAL_StatusTypeDef FLASH_Write_Data(uint32_t* Address, uint8_t* Data, int Data_size)
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{
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int data_cnt = 0;
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uint32_t adr;а
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uint32_t word_data;
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res_hal = HAL_FLASH_Unlock();
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if (res_hal != HAL_OK) return res_hal;
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for (adr = *Address; adr < *Address + Data_size; adr = adr + 4)
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{
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word_data = (
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Data[data_cnt] |
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Data[data_cnt + 1] << 8 |
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Data[data_cnt + 2] << 16 |
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Data[data_cnt + 3] << 24);
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if (adr == (0x40+USART2_IRQn*4)+MAIN_APP_START_ADDRESS)
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{
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// check if uart handler is correct
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if (word_data == FLASH_Read_Word(MAIN_APP_START_ADDRESS+4) + 0x1A) // if there is no specific address for uart handler
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{
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word_data = FLASH_Read_Word(UART_HANDLER_ADD); // write address of bootloader uart handler
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CRC_Update = 1;
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}
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}
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res_hal = HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, adr, word_data);
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if (res_hal != HAL_OK) return res_hal;
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data_cnt += 4;
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}
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*Address += Data_size;
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res_hal = HAL_FLASH_Lock();
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return res_hal;
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}
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/* Очистить приложение */
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HAL_StatusTypeDef FLASH_Erase_App(void) //
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{
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uint32_t PageError = 0x00;
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res_hal = HAL_FLASH_Unlock();
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if (res_hal != HAL_OK)
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{
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__ASM("");
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return res_hal;
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}
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EraseInitStruct.TypeErase = FLASH_TYPEERASE_SECTORS;// erase pages
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EraseInitStruct.Banks = FLASH_BANK_1;
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EraseInitStruct.Sector = KEY_FLASH_SECTOR_X+1; //first sector for erase
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EraseInitStruct.NbSectors = 8;// num of sector that need to be erased
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res_hal = HAL_FLASHEx_Erase(&EraseInitStruct, &PageError);
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if (res_hal != HAL_OK)
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{
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__ASM("");
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return res_hal;
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}
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res_hal = HAL_FLASH_Lock();
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return res_hal;
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}
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/* Записать ключ в память */
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void SetKey(void)
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{
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HAL_FLASH_Unlock();
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HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, BOOTLOADER_KEY_SECTOR_ADR, BL_KEY_APP_WRITTEN);
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HAL_FLASH_Lock();
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}
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/* Считать ключ из памяти */
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uint32_t ReadKey(void)
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{
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return (*(__IO uint32_t*)BOOTLOADER_KEY_SECTOR_ADR);
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}
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/* Очистить настройки бутлоадера для запуска приложения (CRC) */
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void ResetAppSettings(void)
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{
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HAL_FLASH_Unlock();
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uint32_t PageError = 0x00;
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EraseInitStruct.TypeErase = FLASH_TYPEERASE_SECTORS;// erase pages
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EraseInitStruct.Banks = APP_SET_FLASH_BANK_X;
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EraseInitStruct.Sector = APP_SET_FLASH_SECTOR_X; //address
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EraseInitStruct.NbSectors = 1;// num of erased pages
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HAL_FLASHEx_Erase(&EraseInitStruct, &PageError);
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HAL_FLASH_Lock();
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}
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/* Очистить сектор с ключом (ключ, количество перезагрузок из-за WDGT) */
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void ResetKeySector(void)
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{
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HAL_FLASH_Unlock();
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uint32_t PageError = 0x00;
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EraseInitStruct.TypeErase = FLASH_TYPEERASE_SECTORS;// erase pages
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EraseInitStruct.Banks = KEY_FLASH_BANK_X;
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EraseInitStruct.Sector = KEY_FLASH_SECTOR_X; //address
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EraseInitStruct.NbSectors = 1;// num of erased pages
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HAL_FLASHEx_Erase(&EraseInitStruct, &PageError);
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HAL_FLASH_Lock();
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}
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/*-----------------BOOTLOADER FUNCTIONS-------------------*/
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//----------------------------------------------------------
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//-----------------ELEMENTARY FUNCTIONS---------------------
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/* functions for reading bytes/halswords/words */
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uint8_t FLASH_Read_Byte(uint32_t add)
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{
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return (*(__IO uint8_t*)(add));
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}
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uint16_t FLASH_Read_HalfWord(uint32_t add)
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{
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return (*(__IO uint16_t*)(add));
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}
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uint32_t FLASH_Read_Word(uint32_t add)
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{
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return (*(__IO uint32_t*)(add));
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}
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/* functions for writing bytes/halswords/words */
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HAL_StatusTypeDef FLASH_Write_Byte(uint32_t Address, uint8_t Data)
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{
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res_hal = HAL_FLASH_Unlock();
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if (res_hal != HAL_OK) return res_hal;
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res_hal = HAL_FLASH_Program(FLASH_TYPEPROGRAM_BYTE, Address, (uint8_t)(Data));
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if (res_hal != HAL_OK) return res_hal;
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res_hal = HAL_FLASH_Lock();
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return res_hal;
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}
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HAL_StatusTypeDef FLASH_Write_HalfWord(uint32_t Address, uint16_t Data)
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{
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res_hal = HAL_FLASH_Unlock();
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if (res_hal != HAL_OK) return res_hal;
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res_hal = HAL_FLASH_Program(FLASH_TYPEPROGRAM_HALFWORD, Address, (uint16_t)(Data));
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if (res_hal != HAL_OK) return res_hal;
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res_hal = HAL_FLASH_Lock();
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return res_hal;
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}
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HAL_StatusTypeDef FLASH_Write_Word(uint32_t Address, uint32_t Data)
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{
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res_hal = HAL_FLASH_Unlock();
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if (res_hal != HAL_OK) return res_hal;
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res_hal = HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, Address, (uint32_t)(Data));
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if (res_hal != HAL_OK) return res_hal;
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res_hal = HAL_FLASH_Lock();
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return res_hal;
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}
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//----------------------------------------------------------
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