Posted on October 18, 2016 at 09:51Hello,
i have problem with eeprom, then i erasing eeprom (writing 0 or any other values) then everything is working without problem , later then i write 0 then everything is working fine, but if i write other value then i got error 2, please help,
i am suing STM32F103RB
i provided test code:
#include <EEPROM.h>
byte ReadStatus ;
uint32 as;
int as1 = 0;
void setup() {
Serial.begin(115200);
delay(5000);
uint32 *mem = (uint32 *)0x08019000 + 1010;
as = *mem & 0xFFFF;
if (as != 0) { // if value is not zero then erase memory
FLASH_Unlock();
for (int i = 0 ; i < 2040 ; i++ ) {
ReadStatus = FLASH_ProgramHalfWord(0x08019000 + (i * 4), 0);
Serial.println(ReadStatus);
}
FLASH_Lock();
}
for (int i = 0 ; i < 2040 ; i++ ) { // debug - check erased memory
uint32 *mem = (uint32 *)0x08019000 + i;
as = *mem & 0xFFFF;
Serial.print(*mem); Serial.print(''-''); Serial.println(as);
delay(1);
}
delay(5000);
}
void loop() {
ReadStatus = FLASH_WaitForLastOperation(1000);
Serial.print(String(ReadStatus)); Serial.print(''-'');
FLASH_Unlock();
ReadStatus = FLASH_ProgramHalfWord(0x08019000 + 4, as1); // there i got error code 2
FLASH_Lock();
Serial.print(String(ReadStatus)); Serial.println(''-'');
as1++;
delay(5000);
}
