esp-idf/components/soc/esp32c2/include/soc/uart_pins.h
2022-01-19 11:08:57 +08:00

37 lines
977 B
C

/*
* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include "soc/io_mux_reg.h"
/* Specify the number of pins for UART */
#define SOC_UART_PINS_COUNT (4)
/* Specify the GPIO pin number for each UART signal in the IOMUX */
#define U0RXD_GPIO_NUM 19
#define U0TXD_GPIO_NUM 20
#define U0RTS_GPIO_NUM (-1)
#define U0CTS_GPIO_NUM (-1)
#define U1RXD_GPIO_NUM (-1)
#define U1TXD_GPIO_NUM (-1)
#define U1RTS_GPIO_NUM (-1)
#define U1CTS_GPIO_NUM (-1)
/* The following defines are necessary for reconfiguring the UART
* to use IOMUX, at runtime. */
#define U0TXD_MUX_FUNC (FUNC_U0TXD_U0TXD)
#define U0RXD_MUX_FUNC (FUNC_U0RXD_U0RXD)
/* No func for the following pins, they shall not be used */
#define U0RTS_MUX_FUNC (-1)
#define U0CTS_MUX_FUNC (-1)
/* Same goes for UART1 */
#define U1TXD_MUX_FUNC (-1)
#define U1RXD_MUX_FUNC (-1)
#define U1RTS_MUX_FUNC (-1)
#define U1CTS_MUX_FUNC (-1)