store config in eeprom

Config.h

@@ -0,0 +1,49 @@
+/*
+ * Config.h
+ *
+ *  Created on: 04.03.2014
+ *      Author: wn
+ */
+
+#ifndef CONFIG_H_
+#define CONFIG_H_
+
+
+
+typedef union {
+  float f;
+  uint8_t e[sizeof(float)];
+} u_float;
+
+typedef union {
+  unsigned int i;
+  uint8_t e[sizeof(unsigned int)];
+} u_uint;
+
+typedef union {
+  unsigned long l;
+  uint8_t e[sizeof(unsigned long)];
+} u_ulong;
+
+
+namespace Config {
+  const unsigned int MAGIC_TOKEN = 0xDEADBEEF;
+
+  const int MAGIC = 0;               // 4
+  const int THERMOMETER_ALPHA = 4;   // 4
+  const int THERMOMETER_PERIOD = 8;  // 8
+  const int THERMOMETER_CAL[4] = {12, 16, 20, 24};  // 4 x 4
+
+  float getFloat(int pos);
+  void setFloat(int pos, float value);
+  unsigned int getUInt(int pos);
+  void setUInt(int pos, unsigned int value);
+  unsigned long getULong(int pos);
+  void setULong(int pos, unsigned long value);
+
+  bool isInitialized();
+
+  void setMagic();
+}
+
+#endif /* CONFIG_H_ */