Crash_Override/OVMS3-idf
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Merge branch 'bugfix/uart_set_default_idle_time_to_zero' into 'master'

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bugfix(uart): set default tx idle num

See merge request !1419
This commit is contained in:
Angus Gratton 2017-10-26 15:17:45 +08:00
commit baf1641c29
2 changed files with 35 additions and 0 deletions
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13
components/driver/include/driver/uart.h
View file

@ -460,6 +460,19 @@ esp_err_t uart_set_rts(uart_port_t uart_num, int level);
*/
esp_err_t uart_set_dtr(uart_port_t uart_num, int level);
/**
* @brief Set UART idle interval after tx FIFO is empty
*
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param idle_num idle interval after tx FIFO is empty(unit: the time it takes to send one bit
* under current baudrate)
*
* @return
* - ESP_OK Success
* - ESP_FAIL Parameter error
*/
esp_err_t uart_set_tx_idle_num(uart_port_t uart_num, uint16_t idle_num);
/**
* @brief Set UART configuration parameters.
*

22
components/driver/uart.c
View file

@ -43,6 +43,7 @@ static const char* UART_TAG = "uart";
#define UART_EMPTY_THRESH_DEFAULT (10)
#define UART_FULL_THRESH_DEFAULT (120)
#define UART_TOUT_THRESH_DEFAULT (10)
#define UART_TX_IDLE_NUM_DEFAULT (0)
#define UART_ENTER_CRITICAL_ISR(mux) portENTER_CRITICAL_ISR(mux)
#define UART_EXIT_CRITICAL_ISR(mux) portEXIT_CRITICAL_ISR(mux)
#define UART_ENTER_CRITICAL(mux) portENTER_CRITICAL(mux)
@ -469,6 +470,17 @@ esp_err_t uart_set_dtr(uart_port_t uart_num, int level)
return ESP_OK;
}
esp_err_t uart_set_tx_idle_num(uart_port_t uart_num, uint16_t idle_num)
{
UART_CHECK((uart_num < UART_NUM_MAX), "uart_num error", ESP_FAIL);
UART_CHECK((idle_num <= UART_TX_IDLE_NUM_V), "uart idle num error", ESP_FAIL);
UART_ENTER_CRITICAL(&uart_spinlock[uart_num]);
UART[uart_num]->idle_conf.tx_idle_num = idle_num;
UART_EXIT_CRITICAL(&uart_spinlock[uart_num]);
return ESP_OK;
}
esp_err_t uart_param_config(uart_port_t uart_num, const uart_config_t *uart_config)
{
esp_err_t r;
@ -492,6 +504,8 @@ esp_err_t uart_param_config(uart_port_t uart_num, const uart_config_t *uart_conf
r = uart_set_baudrate(uart_num, uart_config->baud_rate);
if (r != ESP_OK) return r;
r = uart_set_tx_idle_num(uart_num, UART_TX_IDLE_NUM_DEFAULT);
if (r != ESP_OK) return r;
r = uart_set_stop_bits(uart_num, uart_config->stop_bits);
return r;
}
@ -1125,5 +1139,13 @@ esp_err_t uart_driver_delete(uart_port_t uart_num)
free(p_uart_obj[uart_num]);
p_uart_obj[uart_num] = NULL;
if(uart_num == UART_NUM_0) {
periph_module_disable(PERIPH_UART0_MODULE);
} else if(uart_num == UART_NUM_1) {
periph_module_disable(PERIPH_UART1_MODULE);
} else if(uart_num == UART_NUM_2) {
periph_module_disable(PERIPH_UART2_MODULE);
}
return ESP_OK;
}