Getting string by UART Receive

[UUrcan]

Hi everyone.

I am sending string data from PC and I want it get with UART of STM32F1xx but as you know I can only have 1 character.

For example I am sending "234" as a string from PC, but I can see only ascii character of only 2 (ascii code of 2 is 50).

I can transmit data as a string on UART. But I can not receive.

Do you know anyone solution method of this problem?

uint8_t UartRxData[10];

//(... 234 comes from PC as a string...)

HAL_UART_Receive_IT(&huart2, (uint8_t*)&UartRxData, 1);

//(result is 50... mean is ascii code of 2)

 Thanks and regards

[Nikita91]

Your request is 1 byte with: HAL_UART_Receive_IT(&huart2, (uint8_t*)&UartRxData, 1);

So you receive 1 byte...

By the way UartRxData is an array so no need of cast : HAL_UART_Receive_IT (& huart2, UartRxData, 3) ;

[UUrcan]

Thank you for you answer but not interested with it.

If you give 3 there then 234 comes as 2,3,4 and writes 50,51,52.

I am trying to get 234 as a character in 1 byte.

[Nikita91]

If you send a string "234" you will receive the string "234" !

If you want the number 234 then convert the received string to a number:

HAL_UART_Receive_IT (& huart2, UartRxData, 3) ;

UartRxData [3] = 0 ;

uint8_t xx = (uint8_t) atoi ((const char *) UartRxData) ;