uart_set_tx_empty_threshold() function

Set uart threshold values for TX fifo empty

Syntax

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Summary

Declaration

Definition

esp_err_t uart_set_tx_empty_threshold(uart_port_t uart_num, int threshold);

Implemented in uart.c:1899

Argument

Description

uart_num

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

threshold

Threshold value below which TX fifo empty interrupt is generated

- ESP_OK Success - ESP_ERR_INVALID_ARG Parameter error - ESP_ERR_INVALID_STATE Driver is not installed

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