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authorCristian Maglie <c.maglie@bug.st>2013-06-01 23:16:02 +0200
committerCristian Maglie <c.maglie@bug.st>2013-06-01 23:16:02 +0200
commit177ad96f866714a4962be57f69cd3d5a6334cde1 (patch)
tree1072239986340d6a239adac924eddf2e1d1ca566 /libraries/Robot_Control/EEPROM_I2C.cpp
parent6cff36ac5e85c74bcb45cc53491ad69d64520b36 (diff)
parentd90fcca5839d13d57ed527d4009b78d22dafbde7 (diff)
Merge branch 'merge-1.0.5' into ide-1.5.x-discovery
Diffstat (limited to 'libraries/Robot_Control/EEPROM_I2C.cpp')
-rw-r--r--libraries/Robot_Control/EEPROM_I2C.cpp62
1 files changed, 62 insertions, 0 deletions
diff --git a/libraries/Robot_Control/EEPROM_I2C.cpp b/libraries/Robot_Control/EEPROM_I2C.cpp
new file mode 100644
index 0000000..dd12695
--- /dev/null
+++ b/libraries/Robot_Control/EEPROM_I2C.cpp
@@ -0,0 +1,62 @@
+#include "EEPROM_I2C.h"
+#include <Wire.h>
+
+#if ARDUINO >= 100
+#include "Arduino.h"
+#else
+#include "WProgram.h"
+#endif
+
+void EEPROM_I2C::begin(){
+ Wire.begin();
+}
+
+void EEPROM_I2C::writeByte(unsigned int eeaddress, byte data){
+ int rdata = data;
+ this->_beginTransmission(eeaddress);
+ Wire.write(rdata);
+ this->_endTransmission();
+}
+
+byte EEPROM_I2C::readByte(unsigned int eeaddress){
+ int rdata;
+ this->_beginTransmission(eeaddress);
+ this->_endTransmission();
+
+ Wire.requestFrom(DEVICEADDRESS,1);
+ if (Wire.available()) rdata = Wire.read();
+ return rdata;
+}
+
+void EEPROM_I2C::writePage(unsigned int eeaddress, byte* data, byte length ){
+ this->_beginTransmission(eeaddress);
+
+ byte c;
+
+ for ( c = 0; c < length; c++)
+ Wire.write(data[c]);
+
+ this->_endTransmission();
+
+ delay(10); // need some delay
+}
+
+void EEPROM_I2C::readBuffer(unsigned int eeaddress, byte *buffer, int length ){
+ this->_beginTransmission(eeaddress);
+ this->_endTransmission();
+ Wire.requestFrom(DEVICEADDRESS,length);
+
+ for ( int c = 0; c < length; c++ )
+ if (Wire.available()) buffer[c] = Wire.read();
+}
+
+
+
+void EEPROM_I2C::_beginTransmission(unsigned int eeaddress){
+ Wire.beginTransmission(DEVICEADDRESS);
+ Wire.write((eeaddress >> 8)); // Address High Byte
+ Wire.write((eeaddress & 0xFF)); // Address Low Byte
+}
+void EEPROM_I2C::_endTransmission(){
+ Wire.endTransmission();
+} \ No newline at end of file