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working i2c read/write

pull/100/head
RobertGawron 2019-08-03 12:05:11 +01:00
rodzic d6c651c8c1
commit 63c541e4e5
1 zmienionych plików z 126 dodań i 3 usunięć
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129
software/Firmware/Src/VoltageSensorActualValue.c
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@ -18,9 +18,12 @@
static void GPIO_setup(void);
static void I2C_setup(void);
static uint8_t getRegisterValue(uint8_t registerId);
//static uint8_t getRegisterValue(uint8_t registerId);
static void write(uint8_t registerId);
static void read(uint8_t registerId);
void VoltageSensorActualValue_Init()
{
GPIO_setup();
@ -30,7 +33,10 @@ void VoltageSensorActualValue_Init()
bool VoltageSensorActualValue_GetMeasurementData(VoltageSensorActualValue_MeasurementData_t *measurementData)
{
*measurementData = getRegisterValue(0x0);
write(0x00);
write(0x10);
read(0);
if (*measurementData == 0)
{
@ -62,11 +68,128 @@ void I2C_setup(void)
I2C_Cmd(ENABLE);
}
static void write(uint8_t registerId)
{
I2C_GenerateSTART(ENABLE);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_MODE_SELECT));
I2C_Send7bitAddress(I2C_SLAVE_ADDRESS, I2C_DIRECTION_TX);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
I2C_SendData(registerId);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_TRANSMITTED));
// I2C_GenerateSTOP(ENABLE);
// while(I2C_GetFlagStatus(I2C_FLAG_BUSBUSY));
/*
I2C_GenerateSTART(ENABLE);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_MODE_SELECT));
I2C_Send7bitAddress(I2C_SLAVE_ADDRESS, I2C_DIRECTION_RX);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED));
UserInterface_ShowMessage(USER_INTERFACE_COLLECTING_DATA_MSG);
I2C_AcknowledgeConfig(DISABLE);
I2C_GenerateSTOP(ENABLE);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_RECEIVED));
registerValue = I2C_ReceiveData();
I2C_AcknowledgeConfig(ENABLE);
*/
I2C_GenerateSTOP(ENABLE);
while(I2C_GetFlagStatus(I2C_FLAG_BUSBUSY));
}
static void read(uint8_t registerId)
{
I2C_GenerateSTART(ENABLE);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_MODE_SELECT));
I2C_Send7bitAddress(I2C_SLAVE_ADDRESS, I2C_DIRECTION_RX);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED));
UserInterface_ShowMessage(USER_INTERFACE_COLLECTING_DATA_MSG);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_RECEIVED));
int registerValue = I2C_ReceiveData();
while (!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_RECEIVED));
I2C_AcknowledgeConfig(DISABLE);
I2C_GenerateSTOP(ENABLE);
I2C_AcknowledgeConfig(ENABLE);
}
uint8_t getRegisterValue(uint8_t registerId)
{
uint8_t registerValue = 0xFF;
/*
registerId=0x10;
static int i=0;
i++;
registerId=i;
*/
static int i=0;
i++;
I2C_GenerateSTART(ENABLE);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_MODE_SELECT));
I2C_Send7bitAddress(I2C_SLAVE_ADDRESS, I2C_DIRECTION_TX);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
I2C_SendData(registerId);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_TRANSMITTED));
// I2C_GenerateSTOP(ENABLE);
// while(I2C_GetFlagStatus(I2C_FLAG_BUSBUSY));
I2C_GenerateSTART(ENABLE);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_MODE_SELECT));
if (i>2)
{
I2C_Send7bitAddress(I2C_SLAVE_ADDRESS, I2C_DIRECTION_RX);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED));
UserInterface_ShowMessage(USER_INTERFACE_COLLECTING_DATA_MSG);
I2C_AcknowledgeConfig(DISABLE);
I2C_GenerateSTOP(ENABLE);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_RECEIVED));
registerValue = I2C_ReceiveData();
I2C_AcknowledgeConfig(ENABLE);
// I2C_GenerateSTOP(ENABLE);
// while(I2C_GetFlagStatus(I2C_FLAG_BUSBUSY));
}
else
{
I2C_GenerateSTOP(ENABLE);
}
#if 0
I2C_GenerateSTART(ENABLE);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_MODE_SELECT));
@ -101,7 +224,7 @@ uint8_t getRegisterValue(uint8_t registerId)
I2C_AcknowledgeConfig(ENABLE);
// I2C_GenerateSTOP(ENABLE);
// while(I2C_GetFlagStatus(I2C_FLAG_BUSBUSY));
#endif
return registerValue;
}