8000 _uart_isr use wr_addr != rd_addr as test for internal queue not empty… · asksensors/arduino-esp32@a6a9a51 · GitHub
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_uart_isr use wr_addr != rd_addr as test for internal queue not empty (espressif#1849)
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‎cores/esp32/esp32-hal-uart.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -80,7 +80,7 @@ static void IRAM_ATTR _uart_isr(void *arg)
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uart->dev->int_clr.rxfifo_full = 1;
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uart->dev->int_clr.frm_err = 1;
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uart->dev->int_clr.rxfifo_tout = 1;
83-
while(uart->dev->status.rxfifo_cnt) {
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while(uart->dev->status.rxfifo_cnt || (uart->dev->mem_rx_status.wr_addr != uart->dev->mem_rx_status.rd_addr)) {
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c = uart->dev->fifo.rw_byte;
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if(uart->queue != NULL && !xQueueIsQueueFullFromISR(uart->queue)) {
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xQueueSendFromISR(uart->queue, &c, &xHigherPriorityTaskWoken);

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