diff --git a/software/Firmware/CMakeLists.txt b/software/Firmware/CMakeLists.txt
index b791361..4fb0a26 100644
--- a/software/Firmware/CMakeLists.txt
+++ b/software/Firmware/CMakeLists.txt
@@ -7,7 +7,7 @@ set(CMAKE_SYSTEM_NAME Generic) # No linux target etc
 set(CMAKE_C_FLAGS_INIT "")
 set(CMAKE_EXE_LINKER_FLAGS_INIT "")
 project(STM8Blink C)
-SET(CMAKE_C_FLAGS "-mstm8 --std-c99 -DSTM8S003 -D__SDCC__ -DUSE_STDPERIPH_DRIVER")
+SET(CMAKE_C_FLAGS "-mstm8 -DSTM8S003 -D__SDCC__ -DUSE_STDPERIPH_DRIVER")
 
 # Flash targets
 #add_custom_target(flash ALL COMMAND stm8flash -c stlink -p stm8s105c6 -w main.ihx)
@@ -46,7 +46,7 @@ add_executable(IonizationChamber
         STM8S_StdPeriph_Lib/src/stm8s_uart1.c)
 
 # flash targets
-add_custom_target(flash ALL COMMAND stm8flash -c stlink -p stm8s003f3  -w IonizationChamber.ihx)
+#add_custom_target(flash ALL COMMAND stm8flash -c stlink -p stm8s003f3  -w IonizationChamber.ihx)
 
 
 # generate doxygen docs and dependency graphs
diff --git a/software/Firmware/Src/MeassurementFrame.c b/software/Firmware/Src/MeassurementFrame.c
index f7e9076..0e3749a 100644
--- a/software/Firmware/Src/MeassurementFrame.c
+++ b/software/Firmware/Src/MeassurementFrame.c
@@ -35,7 +35,8 @@ void MeassurementFrame_Create(uint8_t configuration, uint16_t data)
 
 bool MeassurementFrame_Send(void (*sendFunction)(uint8_t))
 {
-    for(uint8_t i = 0; i < MAX_FRAME_LENGTH; i++)
+    uint8_t i = 0; 
+    for(i = 0; i < MAX_FRAME_LENGTH; i++)
     {
         sendFunction(buffer[i]);
     }
diff --git a/software/Firmware/Src/VoltageSensorActualValue.c b/software/Firmware/Src/VoltageSensorActualValue.c
index 34544e3..b9eef37 100644
--- a/software/Firmware/Src/VoltageSensorActualValue.c
+++ b/software/Firmware/Src/VoltageSensorActualValue.c
@@ -97,6 +97,14 @@ static void write(uint8_t registerId)
 
 static uint16_t read(uint8_t registerId)
 {
+    uint16_t registerMSB = 0; 
+    uint16_t registerLSB = 0;
+    uint16_t registerLSB1 = 0; 
+    uint16_t registerLSB2 = 0;
+    uint16_t registerLSB3 = 0;
+    uint16_t registerLSB4 = 0;
+    uint16_t registerValue = 0;
+
     I2C_GenerateSTART(ENABLE);
     while(!I2C_CheckEvent(I2C_EVENT_MASTER_MODE_SELECT));
 
@@ -105,26 +113,25 @@ static uint16_t read(uint8_t registerId)
     while(!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_RECEIVED));
 
 
-    uint16_t registerMSB = I2C_ReceiveData();
+    registerMSB = I2C_ReceiveData();
     while(!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_RECEIVED));
 
-    uint16_t registerLSB = I2C_ReceiveData();
+    registerLSB = I2C_ReceiveData();
     while(!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_RECEIVED));
 
-    uint16_t registerLSB1 = I2C_ReceiveData();
+    registerLSB1 = I2C_ReceiveData();
     while(!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_RECEIVED));
 
-    uint16_t registerLSB2 = I2C_ReceiveData();
+    registerLSB2 = I2C_ReceiveData();
     while(!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_RECEIVED));
 
-    uint16_t registerLSB3 = I2C_ReceiveData();
+    registerLSB3 = I2C_ReceiveData();
     while(!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_RECEIVED));
 
-    uint16_t registerLSB4 = I2C_ReceiveData();
+    registerLSB4 = I2C_ReceiveData();
     while(!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_RECEIVED));
 
 
-
     I2C_AcknowledgeConfig(DISABLE);
     I2C_GenerateSTOP(ENABLE);
 
@@ -137,7 +144,7 @@ static uint16_t read(uint8_t registerId)
     Logger_Print( registerLSB3);
  */
 
-    uint16_t registerValue = (registerMSB << 8) +  registerLSB;
+    registerValue = (registerMSB << 8) +  registerLSB;
 
     return registerValue;
 }