circuitpython/ports/esp32/uart.h
Daniël van de Giessen f8bd6778c8 esp32: Support JTAG console, free up UART.
CONFIG_USB_OTG_SUPPORTED is automatically set by the ESP-IDF when the chip
supports USB-OTG, which is the case for the ESP32-S2 and ESP32-S3.

When trying to use the JTAG console with these chips, it would not work
because our USB implementation will take over control over the USB port,
breaking the JTAG console in the process.

Thus, when the board is configured to use the JTAG console, we should not
enable our USB console support.

Additionally, this change also frees up UART0 when an USB-based console is
configured, since there's no reason to prevent (re)configuration of UART0
for other uses in that case.

Signed-off-by: Daniël van de Giessen <daniel@dvdgiessen.nl>
2023-09-01 21:01:26 +10:00

52 lines
1.9 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* Development of the code in this file was sponsored by Microbric Pty Ltd
*
* The MIT License (MIT)
*
* Copyright (c) 2016 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef MICROPY_INCLUDED_ESP32_UART_H
#define MICROPY_INCLUDED_ESP32_UART_H
// Whether to enable the REPL on a UART.
#ifndef MICROPY_HW_ENABLE_UART_REPL
#define MICROPY_HW_ENABLE_UART_REPL (!CONFIG_USB_OTG_SUPPORTED && !CONFIG_ESP_CONSOLE_USB_CDC && !CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG)
#endif
#if MICROPY_HW_ENABLE_UART_REPL
#ifndef MICROPY_HW_UART_REPL
#define MICROPY_HW_UART_REPL (0)
#endif
#ifndef MICROPY_HW_UART_REPL_BAUD
#define MICROPY_HW_UART_REPL_BAUD (115200)
#endif
void uart_stdout_init(void);
int uart_stdout_tx_strn(const char *str, size_t len);
#endif // MICROPY_HW_ENABLE_UART_REPL
#endif // MICROPY_INCLUDED_ESP32_UART_H