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SourceVuESP-IDF Framework and ExamplesESP-IDFuart_get_word_length()

uart_get_word_length() function

Get the UART data bit configuration.

Syntax

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Summary

Declaration

Definition

from uart.h:164

esp_err_t uart_get_word_length(uart_port_t uart_num, uart_word_length_t* data_bit);

Implemented in uart.c:299

Arguments

Argument

Description

uart_num

UART port number, the max port number is (UART_NUM_MAX -1).

data_bit

Pointer to accept value of UART data bits.

Return value

- ESP_FAIL Parameter error - ESP_OK Success, result will be put in (*data_bit)

References

Code

Location

Referrer

esp_err_t uart_get_word_length(uart_port_t uart_num, uart_word_length_t *data_bit)

uart.c:299

esp_err_t uart_get_word_length(uart_port_t uart_num, uart_word_length_t* data_bit);

uart.h:164

if (uart_get_word_length(fd, &data_bits) != ESP_OK) {

uart_vfs.c:812

uart_tcgetattr()

Call Tree

uart_get_word_length() is called by 1 function and calls 3 functions:

uart_tcgetattr()

uart_get_word_length()

esp_log_timestamp()

esp_log_write()

uart_hal_get_data_bit_num()

Data Use

uart_get_word_length() reads 9 variables:

esp_log_level_t::ESP_LOG_ERROR

esp_log_level_t::ESP_LOG_WARN

esp_log_level_t::ESP_LOG_INFO

esp_log_level_t::ESP_LOG_DEBUG

esp_log_level_t::ESP_LOG_VERBOSE

uart_port_t::UART_NUM_MAX

UART_TAG

uart_context_t::hal

uart_context

uart_get_word_length()

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