servo/controller/fw/embed/include/flash.h
2025-03-12 15:31:01 +03:00

58 lines
1.5 KiB
C

#ifndef FLASH_H_
#define FLASH_H_
#include "stm32f446xx.h"
/* for addr in FLASH */
typedef struct{
uint8_t data_id;
uint8_t value;
uint16_t crc;
}FLASH_RECORD;
static uint32_t write_ptr;
#define FLASH_RECORD_SIZE sizeof(FLASH_RECORD) //size flash struct
#define PARAM_COUNT 4 // count data in flash
// Flash sectors for STM32F407
#define SECTOR_2 0x08008000 // 16KB
#define SECTOR_3 0x0800C000 // 16KB
#define SECTOR_4 0x08010000 // 64KB
#define SECTOR_5 0x08020000 // 128KB
#define SECTOR_6 0x08040000 // 128KB
#define SECTOR_7 0x08060000 // 128KB
#define FLAG_BOOT (0x08040000 + 4)
// Flash keys for unlocking flash memory
//FLASH SET ONE PROGRAMM WORD
#define FLASH_8BYTE FLASH->CR &= ~FLASH_CR_PSIZE & ~FLASH_CR_PSIZE_1
#define FLASH_32BYTE FLASH->CR |= FLASH_CR_PSIZE | FLASH_CR_PSIZE_0
// Flash command bits
#define FLASH_LOCK FLASH->CR |= FLASH_CR_LOCK
#define FLASH_UNLOCK FLASH->KEYR = FLASH_KEY1; FLASH->KEYR = FLASH_KEY2
// Flash status flags
#define FLASH_BUSY (FLASH->SR & FLASH_SR_BSY)
#define FLASH_ERROR (FLASH->SR & (FLASH_SR_WRPERR | FLASH_SR_PGAERR | FLASH_SR_PGPERR | FLASH_SR_PGSERR))
//for bootloader
typedef void(*pFunction)(void);
// Function prototypes
void flash_unlock(void);
void flash_lock(void);
void erase_sector(uint8_t sector);
void program_word(uint32_t address, uint32_t data,uint32_t byte_len);
uint8_t flash_read_word(uint32_t address);
#endif /* FLASH_H_ */