first commit

W1D1_EEPROM_ALIM/eeprom.h

@@ -0,0 +1,50 @@
+ #ifndef  EEPROM_ROUTINES
+#define  EEPROM_ROUTINES
+
+#if defined(ARDUINO) && ARDUINO >= 100
+  #include "Arduino.h"
+#else
+  #include "WProgram.h"
+#endif
+#include <Wire.h>
+
+template <class T>
+uint16_t writeObjectSimple(uint8_t i2cAddr, uint16_t addr, const T& value){
+
+      const uint8_t* p = (const uint8_t*)(const void*)&value;    
+      uint16_t i;
+      for (i = 0; i < sizeof(value); i++){
+            Wire.beginTransmission(i2cAddr);
+                  Wire.write((uint16_t)(addr >> 8));  // MSB
+                  Wire.write((uint16_t)(addr & 0xFF));// LSB
+                  Wire.write(*p++);
+            Wire.endTransmission();
+            addr++;
+            delay(5);  //max time for writing in 24LC256
+      }
+      return i;
+}
+
+     
+
+template <class T>
+uint16_t readObjectSimple(uint8_t i2cAddr, uint16_t addr, T& value){
+
+            uint8_t* p = (uint8_t*)(void*)&value;
+            uint8_t objSize = sizeof(value);
+            uint16_t i;      
+            for (i = 0; i < objSize; i++){
+                  Wire.beginTransmission (i2cAddr);
+                        Wire.write((uint16_t)(addr >> 8));  // MSB
+                        Wire.write((uint16_t)(addr & 0xFF));// LSB
+                  Wire.endTransmission();
+                  Wire.requestFrom(i2cAddr, (uint8_t)1);         
+                  if(Wire.available()){
+                        *p++ = Wire.read();
+                  }
+                  addr++;
+            }
+            return i;
+}
+
+#endif