1 /*
2  * SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  */
6 
7 // This file defines GPIO lookup macros for available UART IO_MUX pins on ESP32C3.
8 
9 #ifndef _SOC_UART_CHANNEL_H
10 #define _SOC_UART_CHANNEL_H
11 
12 //UART channels
13 #define UART_GPIO21_DIRECT_CHANNEL      UART_NUM_0
14 #define UART_NUM_0_TXD_DIRECT_GPIO_NUM  21
15 #define UART_GPIO20_DIRECT_CHANNEL      UART_NUM_0
16 #define UART_NUM_0_RXD_DIRECT_GPIO_NUM  20
17 
18 #define UART_TXD_GPIO21_DIRECT_CHANNEL  UART_GPIO21_DIRECT_CHANNEL
19 #define UART_RXD_GPIO20_DIRECT_CHANNEL  UART_GPIO20_DIRECT_CHANNEL
20 
21 #endif
22