UART and Thread

[ajaykr]

Hi all,

Just now i tried the Uart-polling example with the same project,which is

working.I think the issues is with the interrupt.

On Mon, Dec 26, 2016 at 3:20 PM, Ajay K R <ajay.kr@erislabs.com> wrote:

Hi,

Thanks for reply.I'm using FRDM-64f board.First I checked my code alone

using the project uart non blocking,with interrupt and which is working

perfect.Then I moved the same code into the lwip tcp echo demo

project,which is now showing some issues.

      nRet = UART_DRV_Init(BOARD_DEBUG_UART3_INSTANCE, &uartState,

&uartConfig);

      pFunc = (uart_rx_callback_t *)uart_Callback;

      UART_DRV_InstallRxCallback(BOARD_DEBUG_UART3_INSTANCE

,(uart_rx_callback_t)pFunc ,&rxChar, 0, NULL);

      NVIC_SetPriority(I2C0_IRQn, 3U);

    while(true)

    {

     ReceiveCommandFromSerial();

     UART_DRV_ReceiveData(BOARD_DEBUG_UART3_INSTANCE , &rxChar , 8u);

    }

}

void uart_Callback()

{

__asm("nop");

}

If I use UART_DRV_SendData() function the whole board is getting hanging.

--

Regards

AJAY K R

--

Regards

AJAY K R

[Alice_Yang]

Hello AJAY K R,

Thanks for your sharing.

So now one hand you can use the polling method,

on the other hand, if you must use interrupt, you need debug and analysis it

step by step , for example check whether the data have send , debug into

the function to check it hang which code ...

BR

Alice

[ajaykr]

Hi,

I conducted a step by step analysis,which shows a  UART_DRV_SendData() function is showing blocking the entire code.Suggest some solution to solve the issue with interrupt method.Polling method is not suitable for my application.

[Alice_Yang]

Hello ,

 You can share your project, then i debug on my side and check the problem.

BR

ALice