UART problem with cc2650

Miguel Castro Vieira

Hi,

I'm using UART to communicate with a peripheral module and I'm using too the UART.h library. My problem is that i'm sending commands to UART_write() and I want to verify the answer using UART_read(), but I don't know the size (bytes) of the answer to correct fill the buffer, so I introduce a bigger buffer for all the cases and my program stuck because the UART_read() waits until the buffer is full and i don't want that. Do you know what I can do change that?

Best Regards,

Miguel Vieira

over 8 years ago

0 A. Rebel over 8 years ago

TI__Genius 11740 points

Hi Miguel,

You could make your own buffer, which captures every UART_read(). Once you get what you think you should get, then compare the buffer to your expected values.

In other words, don't change the buffer size for UART driver, but your application buffer.

Regards,
Rebel

0 Miguel Castro Vieira over 8 years ago in reply to A. Rebel

Intellectual 835 points

Hi Rebel,

I don't understand very well you answer, my problem is that I don't know what expect to receive from the UART_read(), could be 5, 10 or 20 bytes.

Thank you,

Regards,
Miguel

0 Michel Solecki over 8 years ago in reply to Miguel Castro Vieira

Mastermind 8415 points

Hi Miguel,

Set your read size to read a single byte at a time and analyze each byte in your callback function.

It's not the prettiest of solutions but it works.

Regards,
Michel

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UART problem with cc2650