CC2541 don't call UART Callback

Vicente Arnau

Other Parts Discussed in Thread: CC2541

Hi,

I'm triying to make a UART library of CC2541 and I don't know whats going on. I just have a task(working) that initializes the UART with a callback function, this is the code:

void UART_Receiver_Init( uint8 task_id ){
  UART_Receiver_TaskID=task_id;
  
  // Configure UART
  halUARTCfg_t uartConfig;
  uartConfig.configured           = TRUE;
  uartConfig.baudRate             = HAL_UART_BR_9600;
  uartConfig.flowControl          = FALSE;
  uartConfig.flowControlThreshold = 48;
  uartConfig.rx.maxBufSize        = 1024;
  uartConfig.tx.maxBufSize        = 1024;
  uartConfig.idleTimeout          = 6;
  uartConfig.intEnable            = TRUE;
  uartConfig.callBackFunc         = UART_Listener_CB;
  
  HalUARTOpen( V_UART_PORT, &uartConfig );
  
  HCI_EXT_HaltDuringRfCmd(HCI_EXT_HALT_DURING_RF_DISABLE);
  
  
  osal_start_timerEx(UART_Receiver_TaskID,START_UART_COMMUNICATION,500);
  
}

And in the call back function I just have a debug message.

The problem is that it never get into the callback.

I defined this macros:

INT_HEAP_LEN=3072
HALNODEBUG
OSAL_CBTIMER_NUM_TASKS=1
TRUE=1
FALSE=0

#define UART_PORT HAL_UART_PORT_0
#define HAL_UART TRUE
#define HAL_UART_DMA 1
#define HAL_DMA TRUE

Does someone know what could be missing in my code? I already checked the connections between CC2541 and Arduino.

Cheers!

Vicente

over 8 years ago

0 YiKai Chen over 8 years ago

Guru 735695 points

Where/how do you implement UART RX callback function UART_Listener_CB in your code?

0 Vicente Arnau over 8 years ago in reply to YiKai Chen

Intellectual 410 points

Before the Init function. This is the code

/*********************************************************************
* @fn UART_Listener_CB
*
* @brief Process the UART receiver buffer to find the data we want
*
* @param port - UART port where bytes has been received
* @param event - Type of UART event (TX buffer empty, TX buffer full, ...)
*
*/
void UART_Listener_CB(uint8 port, uint8 event) {

printf("UART Callback\n");
#if defined(V_DEBUG)
DEBUG_Print("Msg Recieved\n");
#endif

// Discard unnecessary events
if (event==HAL_UART_TX_EMPTY || event==HAL_UART_TX_FULL) return;

}

0 YiKai Chen over 8 years ago in reply to Vicente Arnau

Guru 735695 points

The callback function looks fine. Do you disable POWER_SAVING when you test UART RX?

0 Vicente Arnau over 8 years ago in reply to YiKai Chen

Intellectual 410 points

Of course:

osal_pwrmgr_device( PWRMGR_ALWAYS_ON );

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CC2541 don't call UART Callback