2025-09-1110:00 PM - last edited on 2025-09-1212:18 AM by mƎALLEm
Edited by ST moderator to be inline with the community rules especially with the code sharing. In next time please use </> button to paste your code. Please read this post: How to insert source code.
void HAL_SMBUS_ErrorCallback(SMBUS_HandleTypeDef *SMBUSHandle)
{
/** Error_Handler() function is called when error occurs.
* 1- When Slave doesn't acknowledge its address, Master restarts communication.
* 2- When Master doesn't acknowledge the last data transferred, Slave doesn't care in this example.
*/
if (HAL_SMBUS_GetError(SMBUSHandle) != HAL_SMBUS_ERROR_ACKF)
{
printf("failed\r\n");
/* Turn Off LED2 */
}
}
/**
* @brief Slave Address Match callbacks.
* @PAram hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
* the configuration information for the specified SMBUS.
* @retval None
*/
void HAL_SMBUS_AddrCallback(SMBUS_HandleTypeDef *hsmbus,uint8_t TransferDirection, uint16_t AddrMatchCode)
{
SlaveAddrMatchCode = (AddrMatchCode << 1);
HAL_SMBUS_EnableListen_IT(&hsmbus1);
uint8_t tx_buff=0x00;
HAL_SMBUS_Slave_Transmit_IT(&hsmbus1, &tx_buff, 1, SMBUS_FIRST_AND_LAST_FRAME_WITH_PEC);
//HAL_SMBUS_Slave_Transmit_IT(&hsmbus1, &aTxBuffer, 1, SMBUS_FIRST_AND_LAST_FRAME_WITH_PEC);
UNUSED(TransferDirection);
}
void HAL_SMBUS_SlaveRxCpltCallback(SMBUS_HandleTypeDef *hsmbus)
{
HAL_SMBUS_Slave_Receive_IT(&hsmbus1,dummy_data, 2, SMBUS_FIRST_AND_LAST_FRAME_WITH_PEC);
}
//
// return 0;
//}
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_USART3_UART_Init();
MX_USART2_UART_Init();
MX_TIM1_Init();
MX_I2C1_SMBUS_Init();
MX_I2C3_SMBUS_Init();
/* USER CODE BEGIN 2 */
/* Enable the Analog SMBUS Filter */
HAL_SMBUS_ConfigAnalogFilter(&hsmbus1,SMBUS_ANALOGFILTER_ENABLE);
/* Enable address Match detect with interrupt */
HAL_SMBUS_EnableListen_IT(&hsmbus1);
/* Wait until address matched */
while(SlaveAddrMatchCode != SMBUS_ADDRESS);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
