/**
* @brief Read The Temperature Sensor Status
* @param DeviceAddr : Device ID address.
* @retval Temperature Sensor Status
*/
uint8_t TSENSOR_ReadStatus(uint16_t DeviceAddr)
{
uint8_t bufferrx[1] = {0};
uint8_t buffertx[1] = {0};
/*##-1- Send Status Command ################################################*/
buffertx[0] = TSENSOR_STATUS;
if (HAL_SMBUS_Master_Transmit_IT(&SmbusHandle, DeviceAddr, &buffertx[0], sizeof(buffertx), SMBUS_FIRST_AND_LAST_FRAME_NO_PEC) != HAL_OK)
{
return TSENSOR_ERROR;
}
while(HAL_SMBUS_GetState(&SmbusHandle) != HAL_SMBUS_STATE_READY);
/*##-2- Retrieve Status Data Byte ##########################################*/
if (HAL_SMBUS_Master_Receive_IT(&SmbusHandle, DeviceAddr, &bufferrx[0], sizeof(buffertx), SMBUS_FIRST_AND_LAST_FRAME_NO_PEC) != HAL_OK)
{
return TSENSOR_ERROR;
}
while(HAL_SMBUS_GetState(&SmbusHandle) != HAL_SMBUS_STATE_READY);
/* Return Temperature Sensor Status */
return (uint8_t)(bufferrx[0]);
}
/**
* @brief Read temperature value of the Temperature Sensor.
* @param DeviceAddr : Device ID address.
* @retval Temperature measured
*/
uint16_t TSENSOR_ReadTemp(uint16_t DeviceAddr)
{
uint8_t bufferrx[2] = {0, 0};
uint8_t buffertx[2] = {TSENSOR_TEMP_VALUE_HIGH_BYTE, TSENSOR_TEMP_VALUE_LOW_BYTE};
uint16_t tmp = 0;
uint8_t count = 0;
for(count = 0; count < 2; count++)
{
/*##-1- Send Temperature Read Command ####################################*/
if (HAL_SMBUS_Master_Transmit_IT(&SmbusHandle, DeviceAddr, &buffertx[count], 1, SMBUS_FIRST_FRAME) != HAL_OK)
{
return TSENSOR_ERROR;
}
while(HAL_SMBUS_GetState(&SmbusHandle) != HAL_SMBUS_STATE_READY);
/*##-2- Retrieve Temperature Data Byte ###################################*/
if (HAL_SMBUS_Master_Receive_IT(&SmbusHandle, DeviceAddr, &bufferrx[count], 1, SMBUS_LAST_FRAME_NO_PEC) != HAL_OK)
{
return TSENSOR_ERROR;
}
while(HAL_SMBUS_GetState(&SmbusHandle) != HAL_SMBUS_STATE_READY);
}
tmp = (uint16_t)(bufferrx[0] << 8);
tmp |= bufferrx[1];
/* Return Temperature value */
return (uint16_t)(tmp >> 4);
}
/**
* @brief Get the address of the Temperature Sensor in alert mode.
* @param None
* @retval Temperature Sensor Address.
*/
uint8_t TSENSOR_AlerteResponseAddressRead(void)
{
uint8_t bufferrx[1] = {0};
/*##-1- Retrieve Alert Temperature Sensor Address ##########################*/
HAL_SMBUS_Master_Receive_IT(&SmbusHandle, 0x18, &bufferrx[0], 1, SMBUS_FIRST_AND_LAST_FRAME_NO_PEC);
while(HAL_SMBUS_GetState(&SmbusHandle) != HAL_SMBUS_STATE_READY);
/* Return Temperature Sensor Address */
return bufferrx[0];
}
/**
* @brief Set TSENSOR Initialization.
* @param DeviceAddr : Device ID address.
* @param pInitStruct: pointer to a TSENSOR_InitTypeDef structure
* that contains the configuration setting for the TSENSOR.
* @retval TSENSOR status
*/
TSENSOR_StatusTypeDef TSENSOR_Init(uint16_t DeviceAddr, TSENSOR_InitTypeDef *pInitStruct)
{
uint8_t buffertx[2] = {0,0};
/*##-1- Initialise the SMBUS peripheral ####################################*/
SmbusHandle.Instance = TSENSOR_SMBUS;
SmbusHandle.Init.Timing = TSENSOR_TIMING;
SmbusHandle.Init.AnalogFilter = SMBUS_ANALOGFILTER_ENABLED;
SmbusHandle.Init.OwnAddress1 = 0x00;
SmbusHandle.Init.AddressingMode = SMBUS_ADDRESSINGMODE_7BIT;
SmbusHandle.Init.DualAddressMode = SMBUS_DUALADDRESS_DISABLED;
SmbusHandle.Init.OwnAddress2 = 0x00;
SmbusHandle.Init.GeneralCallMode = SMBUS_GENERALCALL_DISABLED;
SmbusHandle.Init.NoStretchMode = SMBUS_NOSTRETCH_DISABLED;
SmbusHandle.Init.PacketErrorCheckMode = SMBUS_PEC_DISABLED;
SmbusHandle.Init.PeripheralMode = SMBUS_PERIPHERAL_MODE_SMBUS_HOST;
SmbusHandle.Init.SMBusTimeout = 0;
if(HAL_SMBUS_Init(&SmbusHandle) != HAL_OK)
{
return TSENSOR_ERROR;
}
/*##-2- Verify that Temperature Sensor is ready ############################*/
if (TSENSOR_IsReady(DeviceAddr, 20) != TSENSOR_OK )
{
return TSENSOR_ERROR;
}
/*##-3- Set the Configuration Register #####################################*/
buffertx[0] = TSENSOR_CONFIGURATION;
buffertx[1] = (uint8_t)(pInitStruct->AlertMode | pInitStruct->ConversionMode | pInitStruct->ConversionResolution);
if (HAL_SMBUS_Master_Transmit_IT(&SmbusHandle, DeviceAddr, &buffertx[0], sizeof(buffertx), SMBUS_FIRST_AND_LAST_FRAME_NO_PEC) != HAL_OK)
{
return TSENSOR_ERROR;
}
while(HAL_SMBUS_GetState(&SmbusHandle) != HAL_SMBUS_STATE_READY);
/*##-4- Set the Conversion Rate ############################################*/
buffertx[0] = TSENSOR_CONVERSION_RATE;
buffertx[1] = (uint8_t)(pInitStruct->ConversionRate);
if (HAL_SMBUS_Master_Transmit_IT(&SmbusHandle, DeviceAddr ,&buffertx[0], sizeof(buffertx), SMBUS_FIRST_AND_LAST_FRAME_NO_PEC) != HAL_OK)
{
return TSENSOR_ERROR;
}
while(HAL_SMBUS_GetState(&SmbusHandle) != HAL_SMBUS_STATE_READY);
/*##-5- Set the HIGH Limit Temperature #####################################*/
buffertx[0] = TSENSOR_TEMP_HIGH_LIMIT_HIGH_BYTE;
buffertx[1] = (uint8_t)(pInitStruct->TemperatureLimitHigh);
if (HAL_SMBUS_Master_Transmit_IT(&SmbusHandle, DeviceAddr, &buffertx[0], sizeof(buffertx), SMBUS_FIRST_AND_LAST_FRAME_NO_PEC) != HAL_OK)
{
return TSENSOR_ERROR;
}
while(HAL_SMBUS_GetState(&SmbusHandle) != HAL_SMBUS_STATE_READY);
/*##-6- Set the low Limit Temperature ######################################*/
buffertx[0] = TSENSOR_TEMP_LOW_LIMIT_HIGH_BYTE;
buffertx[1] = (uint8_t)(pInitStruct->TemperatureLimitLow);
if (HAL_SMBUS_Master_Transmit_IT(&SmbusHandle, DeviceAddr, &buffertx[0], sizeof(buffertx), SMBUS_FIRST_AND_LAST_FRAME_NO_PEC) != HAL_OK)
{
return TSENSOR_ERROR;
}
while(HAL_SMBUS_GetState(&SmbusHandle) != HAL_SMBUS_STATE_READY);
/*##-7- Manage Alert Mode setting ##########################################*/
/* Clear an old alert if limit status is set */
/* To clear an alert, need to perform an Alert Response command */
if(((TSENSOR_ReadStatus(DeviceAddr) & TSENSOR_TEMP_EXCEED_HIGH_LIMIT) == TSENSOR_TEMP_EXCEED_HIGH_LIMIT)
|| ((TSENSOR_ReadStatus(DeviceAddr) & TSENSOR_TEMP_IS_OR_BELOW_LOW_LIMIT) == TSENSOR_TEMP_IS_OR_BELOW_LOW_LIMIT))
{
TSENSOR_AlerteResponseAddressRead();
}
/* Check Alert Mode requested */
if(pInitStruct->AlertMode == TSENSOR_ALERT_ENABLE)
{
/* Enable SMBUS Alert */
HAL_SMBUS_EnableAlert_IT(&SmbusHandle);
}
/* Return status OK*/
return TSENSOR_OK;
}
/**
* @brief Set TSENSOR Initialization.
* @param DeviceAddr : Device ID address.
* @param pInitStruct: pointer to a TSENSOR_InitTypeDef structure
* that contains the configuration setting for the TSENSOR.
* @retval TSENSOR status
*/
TSENSOR_StatusTypeDef TSENSOR_Init(uint16_t DeviceAddr, TSENSOR_InitTypeDef *pInitStruct)
{
uint8_t buffertx[3] = {0,0,0};
/*##-1- Initialise the SMBUS peripheral ####################################*/
SmbusHandle.Instance = TSENSOR_SMBUS;
SmbusHandle.Init.Timing = TSENSOR_TIMING;
SmbusHandle.Init.AnalogFilter = SMBUS_ANALOGFILTER_ENABLE;
SmbusHandle.Init.OwnAddress1 = 0x00;
SmbusHandle.Init.AddressingMode = SMBUS_ADDRESSINGMODE_7BIT;
SmbusHandle.Init.DualAddressMode = SMBUS_DUALADDRESS_DISABLE;
SmbusHandle.Init.OwnAddress2 = 0x00;
SmbusHandle.Init.GeneralCallMode = SMBUS_GENERALCALL_DISABLE;
SmbusHandle.Init.NoStretchMode = SMBUS_NOSTRETCH_DISABLE;
SmbusHandle.Init.PacketErrorCheckMode = SMBUS_PEC_DISABLE;
SmbusHandle.Init.PeripheralMode = SMBUS_PERIPHERAL_MODE_SMBUS_HOST;
SmbusHandle.Init.SMBusTimeout = 0;
if(HAL_SMBUS_Init(&SmbusHandle) != HAL_OK)
{
return TSENSOR_ERROR;
}
/*##-2- Verify that Temperature Sensor is ready ############################*/
if (TSENSOR_IsReady(DeviceAddr, 20) != TSENSOR_OK )
{
return TSENSOR_ERROR;
}
/*##-3- Set the Configuration Register #####################################*/
buffertx[0] = TSENSOR_REG_CONF;
buffertx[1] = (uint8_t)(pInitStruct->AlertMode | pInitStruct->ConversionMode);
if (HAL_SMBUS_Master_Transmit_IT(&SmbusHandle, DeviceAddr, &buffertx[0], /*sizeof(buffertx)*/2, SMBUS_FIRST_AND_LAST_FRAME_NO_PEC) != HAL_OK)
{
return TSENSOR_ERROR;
}
while(HAL_SMBUS_GetState(&SmbusHandle) != HAL_SMBUS_STATE_READY);
/*##-4- Set the HIGH Limit Temperature #####################################*/
buffertx[0] = TSENSOR_REG_TOS;
buffertx[1] = (uint8_t)(pInitStruct->TemperatureLimitHigh);
buffertx[2] = 0;
if (HAL_SMBUS_Master_Transmit_IT(&SmbusHandle, DeviceAddr, &buffertx[0], /*sizeof(buffertx)*/3, SMBUS_FIRST_AND_LAST_FRAME_NO_PEC) != HAL_OK)
{
return TSENSOR_ERROR;
}
while(HAL_SMBUS_GetState(&SmbusHandle) != HAL_SMBUS_STATE_READY);
/*##-5- Set the low Limit Temperature ######################################*/
buffertx[0] = TSENSOR_REG_THYS;
buffertx[1] = (uint8_t)(pInitStruct->TemperatureLimitLow);
buffertx[2] = 0;
if (HAL_SMBUS_Master_Transmit_IT(&SmbusHandle, DeviceAddr, &buffertx[0], /*sizeof(buffertx)*/3, SMBUS_FIRST_AND_LAST_FRAME_NO_PEC) != HAL_OK)
{
return TSENSOR_ERROR;
}
while(HAL_SMBUS_GetState(&SmbusHandle) != HAL_SMBUS_STATE_READY);
/*##-6- Check Alert Mode requested #########################################*/
if(pInitStruct->AlertMode == TSENSOR_INTERRUPT_MODE)
{
/* Enable SMBUS Alert */
HAL_SMBUS_EnableAlert_IT(&SmbusHandle);
}
/* Return status OK*/
return TSENSOR_OK;
}