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antonius
antonius
Associate III
May 8, 2019
Question

SIM900 question ?

  • May 8, 2019
  • 1 reply
  • 523 views

Dear Members,

I want to test my SIM900 module,

Do I need something more from this code ?

printf("TEST SIM900\r\n");
		//usart_pstr("AT\r\n");
 target =0; //UART1 selected
	printf("AT/r");
 
			HAL_UART_Receive(&huart1, (uint8_t *)&RxModem, 8,100);
			
			
	 HAL_UART_Transmit(&huart3,(uint8_t *)&RxModem, 8,100);

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    1 reply

    antonius
    antoniusAuthor
    Associate III
    May 8, 2019

    correct me ?

    void usart_transmit( char data )
 
{
	HAL_UART_Transmit(&huart1, (uint8_t *)&data, 1,100);
}
 
 
 
void usart_pstr(char *s) {
//void usart_pstr(BYTE *s) {
	// loop through entire string
 
	while (*s) {
		usart_transmit(*s);
		s++;
	}
}
 
 
void test_modem (void)
{ 
	uint8_t sim900line_buffer[128];
	char rx_data[5];
	int x;
	printf("TEST SIM900\r\n");
	usart_pstr("ATI\r");
 //target =0; //UART1 selected
	//printf("AT/r");
 
			HAL_UART_Receive(&huart1, (uint8_t *)&RxModem, 18,100);
			//memcpy((void *)sim900line_buffer, RxModem, 10); 
			
	 HAL_UART_Transmit(&huart3,(uint8_t *)&RxModem, 18,100);
			target = 1;
	 printf("\r\nFinished receiving from SIM900 \r\n");
				HAL_Delay(3000);

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