how to read and write eeprom for stm8s003k3

Posted on January 06, 2017 at 14:57

void main()

{

GPIOB-> DDR |= (1<<2); //output

GPIOB-> CR1 |= (1<<2); //push-pull type output

// GPIOB-> DDR &= ~(1<<7); //input

// GPIOB-> CR1 |= (1<<7); //pull-up without interrupt

GPIOC-> DDR &= ~(1<<2)|(1<<3); //input

GPIOC-> CR1 |= (1<<2)|(1<<3); //pull-up without interrupt

//

/* Define FLASH programming time */

FLASH_SetProgrammingTime(FLASH_PROGRAMTIME_STANDARD);

/* Unlock Data memory */

FLASH_Unlock(FLASH_MEMTYPE_DATA);

/* Read a byte at a specified address */

add = 0x4000;

val = FLASH_ReadByte(add);

/* Program complement value (of previous read byte) at previous address + 1 */

val_comp = (uint8_t)(~val);

FLASH_ProgramByte((add + 1), val_comp);

/* Check program action */

val = FLASH_ReadByte((add + 1));

if (val != val_comp)

{

/* Error */

// OperationStatus = 0;

/* OperationStatus = PASSED, if the data written/read to/from DATA EEPROM memory is correct */

/* OperationStatus = FAILED, if the data written/read to/from DATA EEPROM memory is corrupted */

while (1)

{

}

}

}