how can i programming uart interrupt(sd_lld_read)?

[BKIM.11]

hello,

I am using the SPC582b and SPC5stdio.

I want to have interrupts run whenever I receive data.

But This function is difficult because it waits until input is received

(sd_lld_read, &lcd_data[bit], 1)

How can I implement an uart interrupt?

I need your help.

Thank you.

[Erwan YVIN]

Hello ,

You can use a thread by using a RTOS like Chibios or FreeRTOS

or you can adapt the driver presents in this followin g file

**
 * @brief Serial read without DMA
 *
 * @param[in] sdp pointer to a @p SerialDriver object
 * @param[out] buffer data buffer receiver
 * @param[out] len number of bytes received
 *
 * @return The number of bytes effectively read.
 *
 * @notapi
 */
static uint16_t sd_rx(SerialDriver* sdp, uint8_t* buffer, uint16_t len) {
 
 if (len > 0UL) {
 if(sdp->config->api_mode == SPC5_LIN_API_MODE_BUFFERED_IO) {
 uint16_t l = len;
 sdp->linflexlp->LINIER.B.DRIE = 0;
 while (l != 0U) {
 if (sdp->rx_read_ptr != sdp->rx_write_ptr) {
 sdp->linflexlp->LINIER.B.DRIE = 0;
 *buffer++ = *sdp->rx_read_ptr++;
 if (sdp->rx_read_ptr == sdp->rx_end_ptr) {
 sdp->rx_read_ptr = sdp->rx_buffered_io;
 }
 l--;
 } else {
 sdp->linflexlp->LINIER.B.DRIE = 1;
 }
 }
 sdp->linflexlp->LINIER.B.DRIE = 1;
 } else {
 sdp->rx_buf = buffer;
 sdp->rx_len = len;
 sdp->linflexlp->LINIER.R |= (uint16_t)(SPC5_LINIER_DRIE | SPC5_LIN_INTERRUPTS); /* Interrupts enabled. */
 sdp->linflexlp->UARTCR.B.RXEN = 1;
 }
 }
 return len;
}

Best Regards

Erwan