CCS/CC3220SF-LAUNCHXL: UART Interrupt

Part Number: CC3220SF-LAUNCHXL
Other Parts Discussed in Thread: CC3220SF

Tool/software: Code Composer Studio

Hello! I try define UART interrupt using in my application based on netwotk_terminal_CC3220SF_LAUNCHXL_tirtos_ccs. The UART drivers are not compatable with my UART protocol processing and I need have my own interrupt, that process my UART packet.

My first error was, that UART interrupt called forever, and application don't work. I fixed it by using MAP_UARTIntDisable(hwAttrs->baseAddr,0xFFFF);
Now I have problem, that interrupt generate only for even symbol, and when I can read two received symbols. After I send one character to UART, I don't get interrupt, then I send second symbol - UART interrupt generate and I can read two character. But I need get interrupt for every symbol received. UART FIFO is disabled. What error I make, when configuring UART interrupt?

P.S. I tryed use HWI instead MAP_UARTIntRegister(hwAttrs->baseAddr,UART0_Handler), but it have same effect.

Thank you!

My code:

static void UART0_Handler(uintptr_t arg)
{
  char UART_STATUS = 0;
  char byBuf;
  int i=0;

  UARTCC32XX_HWAttrsV1 const   *hwAttrs = rfidHandle->hwAttrs;

  UART_STATUS = UARTIntStatus(hwAttrs->baseAddr, true);
  MAP_UARTIntClear(hwAttrs->baseAddr,UART_STATUS);

  if((UART_STATUS & UART_INT_RX) && MAP_UARTCharsAvail(hwAttrs->baseAddr))
  {
    //clear the receive interrupt
    MAP_UARTIntClear(hwAttrs->baseAddr, UART_INT_RX);
    //receive data here
    byBuf = (unsigned char)MAP_UARTCharGetNonBlocking(hwAttrs->baseAddr);

    /* My own code process UART message */


   }

}

void RFIDUartInit()
{
    UART_Params         uartParams;
    pthread_t           uartmonThread;
    pthread_attr_t      attrs;
    struct sched_param  priParam;
    int                 retc;
    ClockP_FreqHz                 freq;
    uint16_t                     pin;
    uint16_t                     mode;
    long  lFIFOLvlRx;
    long  lFIFOLvlTx;

    byRecCntRfid=0;

    rfidHandle = (UART_Handle)&(UART_config[Board_UART0]);
    UARTCC32XX_Object            *object = rfidHandle->object;
    UARTCC32XX_HWAttrsV1 const   *hwAttrs = rfidHandle->hwAttrs;

    /* Get the Power resource Id from the base address */
    object->powerMgrId = getPowerMgrId(hwAttrs->baseAddr);
    if (object->powerMgrId == (unsigned int)-1) {
        DebugP_log1("UART:(%p) Failed to determine Power resource id",
                hwAttrs->baseAddr);
        return (NULL);
    }

    /*
     *  Register power dependency. Keeps the clock running in SLP
     *  and DSLP modes.
     */
    Power_setDependency(object->powerMgrId);

    pin = (hwAttrs->rxPin) & 0xff;
    mode = (hwAttrs->rxPin >> 8) & 0xff;

    MAP_PinTypeUART((unsigned long)pin, (unsigned long)mode);

    pin = (hwAttrs->txPin) & 0xff;
    mode = (hwAttrs->txPin >> 8) & 0xff;

    MAP_PinTypeUART((unsigned long)pin, (unsigned long)mode);

    MAP_UARTDisable(hwAttrs->baseAddr);
    ClockP_getCpuFreq(&freq);
    MAP_UARTConfigSetExpClk(hwAttrs->baseAddr,freq.lo,
                            RFIDUART_BAUDRATE,(UART_CONFIG_WLEN_8 |
                                            UART_CONFIG_STOP_ONE | UART_CONFIG_PAR_NONE));
    MAP_UARTFlowControlSet(hwAttrs->baseAddr, UART_FLOWCONTROL_NONE);
    MAP_UARTFIFODisable(hwAttrs->baseAddr); //disable fifo
    MAP_UARTFIFOLevelSet(hwAttrs->baseAddr,0,0);
    //here we will configure the UART-0 interrupt based communication
    MAP_UARTIntDisable(hwAttrs->baseAddr,0xFFFF);
    MAP_UARTIntEnable(hwAttrs->baseAddr,UART_INT_RX);
//Here I try use direct register interrupt function
//      MAP_UARTIntRegister(hwAttrs->baseAddr,UART0_Handler); //enable interrupts
//Here I use HWI    
      HwiP_Params hwiParams;
      HwiP_Params_init(&hwiParams);
      hwiParams.arg = (uintptr_t)rfidHandle;
      hwiParams.priority = hwAttrs->intPriority;
      object->hwiHandle = HwiP_create(hwAttrs->intNum, UART0_Handler,
          &hwiParams);
      if (object->hwiHandle == NULL) {
          System_printf("UART:(%p) HwiP_create() failed", hwAttrs->baseAddr);
//          UARTCC32XX_close(handle);
          return (NULL);
      }


      Swi_Params swiPar;
      Swi_Params_init(&swiPar);
      swiPar.priority=1;
      RFIDRecSWI=Swi_create(RFIDRec,&swiPar,NULL);

      MAP_UARTEnable(hwAttrs->baseAddr);


    return(rfidHandle);
}