work on i2c write buffer feature

developpment/periferals/i2c/i2c.hpp

@@ -23,7 +23,8 @@ namespace serial
 		uint16_t readWord(const uint8_t& address, const uint8_t& reg); 
 		uint8_t writeByte(const uint8_t& address, const uint8_t& data); 
 		uint8_t writeWord(const uint8_t& address, const uint8_t& reg, const uint16_t& data);	
-
+		uint8_t writeBuffer(const uint8_t& address, const uint8_t* buff, const uint8_t& len);
+		
 		private:
 	};
 	
@@ -53,6 +54,10 @@ namespace serial
 			{
 				return pImpL.writeWord(address, reg, data); 
 			}
+			uint8_t writeBuffer(const uint8_t& address, const uint8_t* buff, const uint8_t& len);
+			{
+				return pImpL.writeBuffer(address, buff, len);
+			}
 
 		private:
 			class i2c_ch0_pImpL; 
@@ -85,6 +90,11 @@ namespace serial
 			{
 				return pImpL.writeWord(address, reg, data); 
 			}
+			uint8_t writeBuffer(const uint8_t& address, const uint8_t* buff, const uint8_t& len)
+			{
+				return pImpL.writeBuffer(address, buff, len);
+			}
+
 
 		private:
 			class i2c_ch1_pImpL; 

developpment/periferals/i2c/i2c_ch0_pImpL.hpp

@@ -28,7 +28,7 @@ class i2c_ch0_pImpL
 		uint16_t readWord(const uint8_t& address, const uint8_t& reg); 
 		uint8_t writeByte(const uint8_t& address, const uint8_t& data); 
 		uint8_t writeWord(const uint8_t& address, const uint8_t& reg, const uint16_t& data);	
-		
+		uint8_t writeBuffer(const uint8_t& address, const uint8_t* buff, const uint8_t& len);
 
 	private:
 		int16_t deviceDescriptor; 

developpment/periferals/i2c/i2c_ch1_pImpL.cpp

@@ -108,3 +108,21 @@ uint16_t i2c_ch1_pImpL::readWord(const uint8_t& address, const uint8_t& reg)
 	result = (recieve_buffer[0] << 8) + recieve_buffer[1] ;
 	return result ; 
 }
+
+uint8_t i2c_ch1_pImpL::writeBuffer(const uint8_t& address, const uint8_t* buff, const uint8_t& len)
+{
+	if(len > send_buffer_size){
+		// TODO: implement error handling here!		
+		return 0;
+	}
+
+
+	if ((write(deviceDescriptor, send_buffer, len)) != len)
+	{
+
+		// TODO: implement error handling here!	
+		return 0;
+	}
+
+	return 0;
+}

developpment/periferals/i2c/i2c_ch1_pImpL.hpp

@@ -29,15 +29,19 @@ class i2c_ch1_pImpL
 		uint8_t writeByte(const uint8_t& address, const uint8_t& data); 
 		uint8_t writeWord(const uint8_t& address, const uint8_t& reg, const uint8_t& data);	
 		uint8_t writeWordWithReg(const uint8_t& address, const uint8_t& reg, const uint16_t& data); 	// retuns 0 when a sucsessful transation ocures	
-		
+		uint8_t writeBuffer(const uint8_t& address, const uint8_t* buff, const uint8_t& len);
 
 	private:
+		enum{
+			send_buffer_size = 32,
+			receive_buffer_size = 32;
+		}
 		ErrorHandler *errorHandling;
 		int16_t deviceDescriptor; 
 		uint8_t device_address;
 		uint8_t device_reg;
-		uint8_t send_buffer[32];
-		uint8_t recieve_buffer[32];
+		uint8_t send_buffer[send_buffer_size];
+		uint8_t recieve_buffer[receive_buffer_size];
 		uint8_t blocks; 
 		uint8_t channel; 
 		uint8_t mode;