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Traveo II

Viku_4403276
New Contributor

Hello All,

I am using sample driver for UART. Its working fine with low level driver(Without interrupt) but, when i am using high level api i am not getting any interrupt.

sequence calls are following :

/* SCB - UART Configuration */

cy_stc_scb_uart_context_t   g_stc_uart_context;

cy_stc_scb_uart_config_t    g_stc_uart_config = {

                                                   .uartMode                   = CY_SCB_UART_STANDARD,

                                                   .oversample                 = 1,

                                                   .dataWidth                  = 8,

                                                   .enableMsbFirst             = false,

                                                   .stopBits                   = CY_SCB_UART_STOP_BITS_1,

                                                   .parity                     = CY_SCB_UART_PARITY_NONE,

                                                   .enableInputFilter          = false,

                                                   .dropOnParityError          = false,

                                                   .dropOnFrameError           = false,

                                                   .enableMutliProcessorMode   = false,

                                                   .receiverAddress            = 0,

                                                   .receiverAddressMask        = 0,

                                                   .acceptAddrInFifo           = false,

                                                   .irdaInvertRx               = false,

                                                   .irdaEnableLowPowerReceiver = false,

                                                   .smartCardRetryOnNack       = false,

                                                   .enableCts                  = false,

                                                   .ctsPolarity                = CY_SCB_UART_ACTIVE_LOW,

                                                   .rtsRxFifoLevel             = 0,

                                                   .rtsPolarity                = CY_SCB_UART_ACTIVE_LOW,

                                                   .breakWidth                 = 0,

                                                   .rxFifoTriggerLevel         = 0,

                                                   .rxFifoIntEnableMask        = E_UART_RX_INTR_FACTER,

                                                   .txFifoTriggerLevel         = 0,

                                                   .txFifoIntEnableMask        = E_UART_TX_INTR_FACTER

                                                };

main()

{

/* Initilize & Enable UART */

    Cy_SCB_UART_DeInit(CY_USB_SCB_TYPE);

    Cy_SCB_UART_Init(CY_USB_SCB_TYPE, &g_stc_uart_config, &g_stc_uart_context);

    Cy_SCB_UART_RegisterCallback(CY_USB_SCB_TYPE, (scb_uart_handle_events_t)Scb_UART_Event, &g_stc_uart_context);

       Cy_SCB_UART_Enable(CY_USB_SCB_TYPE);

   NVIC_EnableIRQ(CPUIntIdx2_IRQn);

    Cy_SysInt_InitIRQ(&stc_sysint_irq_cfg_uart);

    Cy_SysInt_SetSystemIrqVector(stc_sysint_irq_cfg_uart.sysIntSrc, Scb_UART_IntrISR);

}

void Scb_UART_IntrISR(void)

{

#if defined(E_UART_ECHO_INTR_1BYTE)

    /* UART Echo Test (High-Level)            */

    /* (2) Interrupt & Receive by 1 byte unit */

    uint32_t num = Cy_SCB_UART_GetNumInRxFifo(CY_USB_SCB_TYPE);

    if (num != 0) {

        Cy_SCB_UART_Receive(CY_USB_SCB_TYPE, &g_uart_in_data[0], num, &g_stc_uart_context);

        Cy_SCB_UART_Transmit(CY_USB_SCB_TYPE, &g_uart_in_data[0], num, &g_stc_uart_context);

        Cy_SCB_SetRxFifoLevel(CY_USB_SCB_TYPE, 0);

    }

#endif

    /* UART interrupt handler */

    Cy_SCB_UART_Interrupt(CY_USB_SCB_TYPE, &g_stc_uart_context);

    NVIC_ClearPendingIRQ(CPUIntIdx2_IRQn);

}

Thanks is advance

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