Function esp_idf_svc::hal::sys::uart_set_rts

source ยท 
pub unsafe extern "C" fn uart_set_rts(
    uart_num: u32,
    level: i32,
) -> i32
Expand description

@brief Manually set the UART RTS pin level. @note UART must be configured with hardware flow control disabled.

@param uart_num UART port number, the max port number is (UART_NUM_MAX -1). @param level 1: RTS output low (active); 0: RTS output high (block)

@return - ESP_OK Success - ESP_FAIL Parameter error