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bugfix: uart event mismatch

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1. Fix bug of uart frame error and parity error interrupt mismatch in driver code, which will cause the corresponding interrupt can not be cleared correctly, and will finally cause a interrupt watch dog.
2. Add gpio pull-up for rx pin and cts pin.
This commit is contained in:
Wangjialin 2016-12-22 12:08:15 +08:00
parent a760eb3980
commit 794f7dd294
1 changed files with 4 additions and 2 deletions
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6
components/driver/uart.c
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@ -387,6 +387,7 @@ esp_err_t uart_set_pin(uart_port_t uart_num, int tx_io_num, int rx_io_num, int r
if(rx_io_num >= 0) {
PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[rx_io_num], PIN_FUNC_GPIO);
gpio_set_pull_mode(rx_io_num, GPIO_PULLUP_ONLY);
gpio_set_direction(rx_io_num, GPIO_MODE_INPUT);
gpio_matrix_in(rx_io_num, rx_sig, 0);
}
@ -397,6 +398,7 @@ esp_err_t uart_set_pin(uart_port_t uart_num, int tx_io_num, int rx_io_num, int r
}
if(cts_io_num >= 0) {
PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[cts_io_num], PIN_FUNC_GPIO);
gpio_set_pull_mode(cts_io_num, GPIO_PULLUP_ONLY);
gpio_set_direction(cts_io_num, GPIO_MODE_INPUT);
gpio_matrix_in(cts_io_num, cts_sig, 0);
}
@ -639,10 +641,10 @@ static void IRAM_ATTR uart_rx_intr_handler_default(void *param)
uart_reg->int_clr.brk_det = 1;
uart_event.type = UART_BREAK;
} else if(uart_intr_status & UART_FRM_ERR_INT_ST_M) {
uart_reg->int_clr.parity_err = 1;
uart_reg->int_clr.frm_err = 1;
uart_event.type = UART_FRAME_ERR;
} else if(uart_intr_status & UART_PARITY_ERR_INT_ST_M) {
uart_reg->int_clr.frm_err = 1;
uart_reg->int_clr.parity_err = 1;
uart_event.type = UART_PARITY_ERR;
} else if(uart_intr_status & UART_TX_BRK_DONE_INT_ST_M) {
UART_ENTER_CRITICAL_ISR(&uart_spinlock[uart_num]);