C++ (Cpp) LPUART_ClearStatusFlags Examples

Example #1

File: serial_api.c Project: pan-/mbed

int serial_writable(serial_t *obj)
{
    uint32_t status_flags = LPUART_GetStatusFlags(uart_addrs[obj->index]);
    if (status_flags & kLPUART_RxOverrunFlag)
        LPUART_ClearStatusFlags(uart_addrs[obj->index], kLPUART_RxOverrunFlag);
    return (status_flags & kLPUART_TxDataRegEmptyFlag);
}

Example #2

File: serial_api.c Project: pan-/mbed

int serial_readable(serial_t *obj)
{
    uint32_t status_flags = LPUART_GetStatusFlags(uart_addrs[obj->index]);
    if (status_flags & kLPUART_RxOverrunFlag) {
        LPUART_ClearStatusFlags(uart_addrs[obj->index], kLPUART_RxOverrunFlag);
    }
    return (status_flags & kLPUART_RxDataRegFullFlag);
}

Example #3

File: serial_api.c Project: DanKupiniak/mbed

/******************************************************************************
 * INTERRUPTS HANDLING
 ******************************************************************************/
static inline void uart_irq(uint32_t transmit_empty, uint32_t receive_full, uint32_t index) {
    LPUART_Type *base = uart_addrs[index];

    /* If RX overrun. */
    if (LPUART_STAT_OR_MASK & base->STAT)
    {
        /* Read base->D, otherwise the RX does not work. */
        (void)base->DATA;
        LPUART_ClearStatusFlags(base, kLPUART_RxOverrunFlag);
    }

    if (serial_irq_ids[index] != 0) {
        if (transmit_empty)
            irq_handler(serial_irq_ids[index], TxIrq);

        if (receive_full)
            irq_handler(serial_irq_ids[index], RxIrq);
    }
}

Example #4

File: uart_mcux_lpuart.c Project: kraj/zephyr

static int mcux_lpuart_err_check(struct device *dev)
{
	const struct mcux_lpuart_config *config = dev->config->config_info;
	u32_t flags = LPUART_GetStatusFlags(config->base);
	int err = 0;

	if (flags & kLPUART_RxOverrunFlag) {
		err |= UART_ERROR_OVERRUN;
	}

	if (flags & kLPUART_ParityErrorFlag) {
		err |= UART_ERROR_PARITY;
	}

	if (flags & kLPUART_FramingErrorFlag) {
		err |= UART_ERROR_FRAMING;
	}

	LPUART_ClearStatusFlags(config->base, kLPUART_RxOverrunFlag |
					      kLPUART_ParityErrorFlag |
					      kLPUART_FramingErrorFlag);

	return err;
}