For EEPROM read and write function

2023-06-23 09:38:32 +07:00
parent fe3d8b4956
commit 14899d1b41
2 changed files with 43 additions and 0 deletions
--- a/src/eeprom_rw.c
+++ b/src/eeprom_rw.c
@@ -0,0 +1,34 @@
+#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;
+}