topic Re: UART communication with Putty in Kinetis Microcontrollers

UART communication with Putty

songja — Wed, 24 Oct 2018 12:32:47 GMT

Hi,

I am printing 8 ADC values out to Putty and save the log file as "*.csv".

But when I checked the printed values, there are no taps between them even though I added '\t'.

for example, if the values were "1, 2 3, 4, 5, 6, 7, 8", the saved value in CSV file is "12345678".

I am using FreeRTOS and the code is attached below.

I also tried to print all the values together with one variable.

void uart_task(void)
{
char TEMP[32];

TickType_t xLastWakeTime;

uart_config.srcclk = DEMO_UART_CLK_FREQ;
uart_config.base = DEMO_UART;

UART_RTOS_Init(&handle, &t_handle, &uart_config);

for(;;)

{
xLastWakeTime = xTaskGetTickCount();

for (int i = 0; i < NOS; i++ )

            {
                  sprintf(TEMP, "%d",OFFSET[i]-ADC_VALs[i]);
                  UART_RTOS_Send(&handle, (uint8_t *)TEMP, strlen(TEMP))

}

      UART_RTOS_Send(&handle, "\r\n", strlen("\r\n"));
      vTaskDelayUntil(&xLastWakeTime, 20);
      }
UART_RTOS_Deinit(&handle);
vTaskSuspend(NULL);
}

Thanks,

Re: UART communication with Putty

kerryzhou — Thu, 25 Oct 2018 03:31:41 GMT

Hi JAEYONE SONG,

You can change a PC serial terminal software to receive the data, whether it have the tab or not.

I think this problem should caused by the PC putty.

After you receive the data in the terminal, you can copy the data, then save it to the file .csv.

Please try it again.

If you still have problem about it, please tell me what the kinetis chip you are using now, tell me the partnumber.

Besides, you also need to give me the PC side received data, then give me the screen shoot about your problem .csv.

Have a great day,
Kerry

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Re: UART communication with Putty

songja — Thu, 25 Oct 2018 07:56:21 GMT

Hi Kerry,

I was saving the data as "printable output" via Putty and I changed it to "All session output".

Moreover, saving the data as '*.csv' causes the problem as well (The format somewhat collapsed).

Once I use "All session output" and save the data as '*.txt', it works fine.

Thank you very much for your help!

Jay

Re: UART communication with Putty

kerryzhou — Fri, 26 Oct 2018 07:00:38 GMT

Hi Jay,

Good!

So, if the problem is solved, please help me to mark the correct answer, just to close this case, thank you!

Have a great day,
Kerry