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Softuart (#307)

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* extras/softuart: support for multiple UARTs, dynamic RX/TX pins
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mr-nice 2017-03-06 18:28:20 +01:00 • committed by Ruslan V. Uss
parent fda5d0b942
commit 6b0547b963
7 changed files with 463 additions and 0 deletions
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examples/softuart/LICENSE Normal file
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The MIT License (MIT)
Copyright (C) 2016 Bernhard Guillon <Bernhard.Guillon@web.de>
Copyright (c) 2015 plieningerweb
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.

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examples/softuart/Makefile Normal file
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PROGRAM = softuart
EXTRA_COMPONENTS = extras/softuart
ESPBAUD = 460800
include ../../common.mk

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examples/softuart/main.c Normal file
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/*
* Softuart example
*
* Copyright (C) 2017 Ruslan V. Uss <unclerus@gmail.com>
* Copyright (C) 2016 Bernhard Guillon <Bernhard.Guillon@web.de>
* Copyright (c) 2015 plieningerweb
*
* MIT Licensed as described in the file LICENSE
*/
#include <esp/gpio.h>
#include <esp/uart.h>
#include <espressif/esp_common.h>
#include <stdio.h>
//#include <FreeRTOS.h>
//#include <task.h>
#include <softuart/softuart.h>
#define RX_PIN 5
#define TX_PIN 4
void user_init(void)
{
// setup real UART for now
uart_set_baud(0, 115200);
printf("SDK version:%s\n\n", sdk_system_get_sdk_version());
// setup software uart to 9600 8n1
softuart_open(0, 9600, RX_PIN, TX_PIN);
while (true)
{
if (!softuart_available(0))
continue;
char c = softuart_read(0);
printf("input: %c, 0x%02x\n", c, c);
softuart_puts(0, "start\r\n");
}
}