SIM7600SAH question ?

[antonius]

Dear Members,

I tried to send SMS with SIM7600SAH, the code was working but now it's giving me intermittent result...

The code

//Clear buffer
	HAL_UART_Transmit_IT(&huart1,(uint8_t*)&aTxBuffer4, sizeof(aTxBuffer4));
	HAL_Delay(5);
	HAL_UART_Transmit_IT(&huart1,(uint8_t*)&aTxBuffer, sizeof(aTxBuffer));
  
	    HAL_UART_Receive_IT(&huart1, (uint8_t *)&SIM900.rxBuffer,1);
	    //HAL_UART_Receive_IT(&huart1, (uint8_t *)&SIM900.rxBuffer,sizeof(SIM900.rxBuffer));
		
			SIM900_Process();
				HAL_Delay(5000);
				//Clear buffer
	      HAL_UART_Transmit_IT(&huart1,(uint8_t*)&aTxBuffer4, sizeof(aTxBuffer4));
				HAL_Delay(5);
				
				 HAL_UART_Transmit_IT(&huart1,(uint8_t*)&aTxBuffer2,sizeof(aTxBuffer2)); //AT command
				 HAL_UART_Receive_IT(&huart1, (uint8_t *)&SIM900.rxBuffer,1);  
         // HAL_UART_Receive_IT(&huart1, (uint8_t *)&SIM900.rxBuffer,sizeof(SIM900.rxBuffer));
        SIM900_Process();					
				HAL_Delay(5000);

callback

void HAL_UART_RxCpltCallback(UART_HandleTypeDef* huart)
{   
	if(huart->Instance==USART2)
		{
			
		}	
	if(huart->Instance==USART1)
		{ 
	
			SIM900_CallBack();
                }
}

void	SIM900_CallBack(void)
{
	
	
	SIM900.LastTime=HAL_GetTick();
	if(SIM900.rxIndex < sizeof(SIM900.rxBuffer)-2)
	{
		SIM900.rxBuffer[SIM900.rxIndex] = SIM900.rxTmp;
		SIM900.rxIndex++;
		 memcpy((void *)line_buffer_SIM900, SIM900.rxBuffer, SIM900.rxIndex); 
		  
	    
	}	
	HAL_UART_Receive_IT(&_SIM900_USART,&SIM900.rxTmp,1);
	
}

void SIM900_Process(void)
{
	
		printf("%s",SIM900.rxBuffer);
	
}

Do I miss something here ?

Do I need TXcomplete callback ??

void HAL_UART_TxCpltCallback(UART_HandleTypeDef* huart)
{
		if(huart->Instance==USART1)
		{ 
			HAL_UART_Receive_IT(&huart1, (uint8_t *)&SIM900.rxBuffer,1);
		}	
		
}
 
 

then printf what it has received on process ?

Thanks