all the prepared mini meterbus client stuff

src/meterBusClient.h

@@ -0,0 +1,90 @@
+/*
+ * meterBusClient.h
+ *
+ *  Created on: 08.03.2014
+ *      Author: wn
+ */
+
+#ifndef METERBUSCLIENT_H_
+#define METERBUSCLIENT_H_
+
+
+
+
+
+const unsigned long RESPONSE_DELAY = 50;
+
+
+
+struct MeterBusFrame {
+ /*
+  * Short Frame:
+  *   Start      10h
+  *   C-Field
+  *   A-Field
+  *   Check-Sum
+  *   Stop       16h
+  *
+  * Long Frame:
+  *   Start      68h
+  *   Length
+  *   Length
+  *   Start      68h
+  *   C-Field
+  *   A-Field
+  *   CI-Field
+  *   User-Data
+  *   Check-Sum
+  *   Stop       16h
+  *
+  */
+  unsigned char startDelimiter;
+  unsigned char length;
+  unsigned char cField;
+  unsigned char aField;
+  unsigned char ciField;
+  unsigned char userData[64];
+  unsigned char checksum;
+  bool valid;
+};
+
+
+class MeterBusClient {
+public:
+  MeterBusClient();
+  void begin();
+  void exec();
+private:
+  unsigned char m_address;
+  void setAddress(unsigned char address);
+  unsigned char getAddress();
+  bool handleFrame();
+  MeterBusFrame m_frame;
+
+  unsigned char m_sendBuffer[64];
+  unsigned int m_sendBufferLen;
+  void aSB(unsigned char v); // append to send buffer
+  void aSB(unsigned int v);
+  void aSB(unsigned long v);
+  void aSB(float v);
+  unsigned char calcSendChecksum();
+  void calcAndSetFrameLength();
+
+  unsigned long m_frameCnt;
+  unsigned char m_accessCnt;
+  unsigned long m_myFrameCnt;
+  unsigned long m_invalidFrameCnt;
+  unsigned long m_invalidChecksum;
+  unsigned long m_collisionCnt;
+
+  unsigned char getAccessCnt();
+  unsigned char getStatus();
+
+  void SND_NKE();
+  void REQ_UD2();
+  void SND_UD();
+};
+
+
+
+#endif /* METERBUSCLIENT_H_ */