ducpm/BA45F5250_Smoke_Detector
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For EEPROM read and write function

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This commit is contained in:
Miducc
2023-06-23 09:38:32 +07:00
parent fe3d8b4956
commit 14899d1b41
2 changed files with 43 additions and 0 deletions
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9
inc/eeprom_rw.h Normal file
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#ifndef _EEPROM_RW_
#define _EEPROM_RW_
#include "stdint.h"
void eeprom_write(uint8_t addr, uint8_t data);
uint8_t eeprom_read(uint8_t addr);
#endif

34
src/eeprom_rw.c Normal file
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#include "BA45F5250.h"
#include "stdint.h"
#include "build-in.h"
#include "eeprom_rw.h"
void eeprom_write(uint8_t addr, uint8_t data)
{
_emi = 0;
_eea = addr;
_eed = data;
_mp1l = 0x40;
_mp1h = 0x01;
_iar1 |= 0b00001000;
_iar1 |= 0b00000100;
while(_iar1 & 0b00000100);
_iar1 = 0x00;
_mp1h = 0x00;
_emi = 1;
}
uint8_t eeprom_read(uint8_t addr)
{
_emi = 0;
_eea = addr;
_mp1l = 0x40;
_mp1h = 0x01;
_iar1 |= 0b00000010;
_iar1 |= 0b00000001;
while(_iar1 & 0b00000001);
_iar1 = 0x00;
_mp1h = 0x00;
_emi = 1;
return _eed;
}