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driver(uart): Fixed uart tx_empty interrupt wdt timeout bug.

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This commit is contained in:
kooho
2018-07-19 21:41:35 +08:00
committed by bot
parent 230d9adb8a
commit 2d0af81ccf
2 changed files with 20 additions and 2 deletions
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components/driver/uart.c
+3 -2
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@@ -761,7 +761,6 @@ static void uart_rx_intr_handler_default(void *param)
p_uart->tx_ptr = NULL;
p_uart->tx_len_tot = p_uart->tx_head->tx_data.size;
if(p_uart->tx_head->type == UART_DATA_BREAK) {
p_uart->tx_len_tot = p_uart->tx_head->tx_data.size;
p_uart->tx_brk_flg = 1;
p_uart->tx_brk_len = p_uart->tx_head->tx_data.brk_len;
}
@@ -809,7 +808,7 @@ static void uart_rx_intr_handler_default(void *param)
p_uart->tx_ptr = NULL;
//Sending item done, now we need to send break if there is a record.
//Set TX break signal after FIFO is empty
if(p_uart->tx_brk_flg == 1 && p_uart->tx_len_tot == 0) {
if(p_uart->tx_len_tot == 0 && p_uart->tx_brk_flg == 1) {
UART_ENTER_CRITICAL_ISR(&uart_spinlock[uart_num]);
uart_reg->int_ena.tx_brk_done = 0;
uart_reg->idle_conf.tx_brk_num = p_uart->tx_brk_len;
@@ -818,6 +817,8 @@ static void uart_rx_intr_handler_default(void *param)
uart_reg->int_ena.tx_brk_done = 1;
UART_EXIT_CRITICAL_ISR(&uart_spinlock[uart_num]);
p_uart->tx_waiting_brk = 1;
//do not enable TX empty interrupt
en_tx_flg = false;
} else {
//enable TX empty interrupt
en_tx_flg = true;