47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
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#ifndef FLASH_H_
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#define FLASH_H_
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#include "stm32f446xx.h"
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// Flash sectors for STM32F407
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#define BOOT 0x08000000 // 16KB - Bootloader
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#define APP_ADDR 0x08004000 // 16KB - Application
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#define SECTOR_2 0x08008000 // 16KB
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#define SECTOR_3 0x0800C000 // 16KB
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#define SECTOR_4 0x08010000 // 64KB
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#define SECTOR_5 0x08020000 // 128KB
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#define SECTOR_6 0x08040000 // 128KB
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#define SECTOR_7 0x08060000 // 128KB
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#define FLAG_BOOT (0x08040000 + 4)
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// Flash keys for unlocking flash memory
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#define FLASH_KEY1 0x45670123
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#define FLASH_KEY2 0xCDEF89AB
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//FLASH SET ONE PROGRAMM WORD
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#define FLASH_8BYTE FLASH->CR &= ~FLASH_CR_PSIZE & ~FLASH_CR_PSIZE_1
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#define FLASH_32BYTE FLASH->CR |= FLASH_CR_PSIZE | FLASH_CR_PSIZE_0
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// Flash command bits
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#define FLASH_LOCK FLASH->CR |= FLASH_CR_LOCK
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#define FLASH_UNLOCK FLASH->KEYR = FLASH_KEY1; FLASH->KEYR = FLASH_KEY2
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// Flash status flags
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#define FLASH_BUSY (FLASH->SR & FLASH_SR_BSY)
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#define FLASH_ERROR (FLASH->SR & (FLASH_SR_WRPERR | FLASH_SR_PGAERR | FLASH_SR_PGPERR | FLASH_SR_PGSERR))
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//for bootloader
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typedef void(*pFunction)(void);
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// Function prototypes
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void flash_unlock(void);
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void flash_lock(void);
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void flash_erase_sector(uint8_t sector);
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void flash_program_word(uint32_t address, uint32_t data,uint32_t byte_len);
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uint8_t flash_read_word(uint32_t address);
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#endif /* FLASH_H_ */
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