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Merge branch 'bugfix/fix_uart_fake_tx_done_v4.4' into 'release/v4.4'

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uart: Fix unwanted processing of TX_DONE interrupt immediately after calling uart_wait_tx_done() (backport v4.4)

See merge request espressif/esp-idf!20314
This commit is contained in:
Michael (XIAO Xufeng)
2022-09-28 16:45:03 +08:00
parent cc841ae9c0 5a969b91a8
commit 268718b7b4
1 changed files with 3 additions and 0 deletions
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3
components/driver/uart.c
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@@ -1146,6 +1146,9 @@ esp_err_t uart_wait_tx_done(uart_port_t uart_num, TickType_t ticks_to_wait)
xSemaphoreGive(p_uart_obj[uart_num]->tx_mux); xSemaphoreGive(p_uart_obj[uart_num]->tx_mux);
return ESP_OK; return ESP_OK;
} }
if (!UART_IS_MODE_SET(uart_num, UART_MODE_RS485_HALF_DUPLEX)) {
uart_hal_clr_intsts_mask(&(uart_context[uart_num].hal), UART_INTR_TX_DONE);
}
UART_ENTER_CRITICAL(&(uart_context[uart_num].spinlock)); UART_ENTER_CRITICAL(&(uart_context[uart_num].spinlock));
uart_hal_ena_intr_mask(&(uart_context[uart_num].hal), UART_INTR_TX_DONE); uart_hal_ena_intr_mask(&(uart_context[uart_num].hal), UART_INTR_TX_DONE);
UART_EXIT_CRITICAL(&(uart_context[uart_num].spinlock)); UART_EXIT_CRITICAL(&(uart_context[uart_num].spinlock));