Hi everyone,
I am working with a STM32G070 to control a small robot. I am currently coding a calibration function for the different motors of the robot and I would like to store the result of the calibration in the flash memory of the MCU, so that I do not have to redo the calibration process everytime I switch on the robot. Unfortunately I am missing something, but I can't achieve to store the data in the flash memory. I would be extremely grateful if someone could correct my code so that I can write (and read) in the flash memory. I use STM32CubeIDE for coding.
The functions I wrote are the following :
uint64_t flash_read(uint32_t address){
return *((uint32_t*)address);
}
void flash_write(uint32_t address, uint64_t data){
HAL_FLASH_Unlock();
HAL_FLASH_Program(FLASH_TYPEPROGRAM_DOUBLEWORD,address,data);
HAL_FLASH_Lock();
}
void flash_page_erase(uint32_t page)
{
HAL_FLASH_Unlock();
uint32_t error = 0 ;
FLASH_EraseInitTypeDef FLASH_EraseInitStruct =
{
.TypeErase = FLASH_TYPEERASE_PAGES,
.Page = page,
.NbPages = 1,
};
HAL_FLASHEx_Erase(&FLASH_EraseInitStruct,&error);
HAL_FLASH_Lock();
}
Then in my main loop, I use the functions like this :
flash_page_erase(62) ;
flash_write(0x0801F060, (uint64_t)result) ;
Result is the value I am trying to store. During my tests, result = 81 (if you want me to do tests with other values, I will for sure).
To read the value I do the following :
uint64_t l = flash_read(0x0801F060) ;
When I read the value of l, the value is always equal to 1 instead of 81. I read the value with the Debugger of STM32CubeIDE.
Can someone correct me please ?
Many thanks guys !
