startet implementation of memberfunctions

MCP4725/mcp4725.cpp

@@ -7,7 +7,16 @@ MCP4725::MCP4725(pwrd_md power_down_mode,
 			address(address),
 			i2c_write(i2c_write)
 {
-	
+	uint8_t temp[6];
+
+      	temp[0] = write_dac_and_eeprom | (power_down_mode << 1);
+     	temp[1] = static_cast<uint8_t>(dac_value >> 4);
+     	temp[2] = static_cast<uint8_t>(dac_value << 4);
+	temp[3] = temp[0];
+	temp[4] = temp[1];
+	temp[5] = temp[2];
+
+	i2c_write(temp,6);
 }
 
 MCP4725::MCP4725(i2c_addr address,
@@ -15,8 +24,17 @@ MCP4725::MCP4725(i2c_addr address,
 			power_down_mode(MCP4725::normal),
 			address(address),
 			i2c_write(i2c_write)
-{
-	
+{	
+	uint8_t temp[6];
+
+      	temp[0] = write_dac_and_eeprom | (power_down_mode << 1);
+     	temp[1] = static_cast<uint8_t>(dac_value >> 4);
+     	temp[2] = static_cast<uint8_t>(dac_value << 4);
+	temp[3] = temp[0];
+	temp[4] = temp[1];
+	temp[5] = temp[2];
+
+	i2c_write(temp,6);
 }
 
 MCP4725::~MCP4725()

MCP4725/mcp4725.hpp

@@ -1,6 +1,9 @@
 #ifndef _MCP4725_HPP_
 #define _MCP4725_HPP_
 
+#include <stdint.h>
+#include <functional>
+
 class MCP4725
 {
 	public:
@@ -28,7 +31,7 @@ class MCP4725
 
 		//using std::functional<uint8_t(uint8_t, uint8_t)> i2c_read_n_t;
 
-		using std::functional<void(uint8_t,uint8_t)> i2c_write_n_t;
+		using std::functional<void(uint8_t*,uint8_t)> i2c_write_n_t;
 
 		MCP4725(pwrd_md power_down_mode,
 			i2c_addr address,
@@ -53,10 +56,19 @@ class MCP4725
 		
 
 	private:
+
+		enum commands_t
+		{
+			fast_mode = 0x00,
+			write_dac = 0x40,
+			write_dac_and_eeprom = 0x60
+		};
+
 		i2c_addr address;
 		pwrd_md power_down_mode;
 		i2c_write_n_t i2c_write;
-
+		uint16_t dac_value;
+		uint16_t eeprom_value;
 
 };