75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
/*
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* Example timer based software UART drive.
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*
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* Copyright (C) 2019 OurAirQuality.org
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*
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* Licensed under the Apache License, Version 2.0, January 2004 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE CONTRIBUTORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS WITH THE SOFTWARE.
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*
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*/
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#include <string.h>
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#include <ctype.h>
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#include <espressif/esp_common.h>
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#include <espressif/user_interface.h>
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#include <esp/uart.h>
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#include <FreeRTOS.h>
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#include <task.h>
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#include "lwip/sockets.h"
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#include "wificfg/wificfg.h"
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#include "tsoftuart/tsoftuart.h"
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static void tsoftuart_task(void *pvParameters)
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{
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/* Initialize the UART Tx. */
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uint32_t tx_pin = *(uint32_t *)pvParameters;
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struct tsoftuart *uart = tsoftuart_init(tx_pin, 9600);
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for (;;) {
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/* Reset the timing error records. */
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uart->output_queue_error_low = 0;
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uart->output_queue_error_high = 0;
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char str[] = "Hello 0123456789 abcdefghijklmnopqrstuvwxyz\r\n";
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for (size_t i = 0; i < strlen(str); i++) {
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tsoftuart_putc(uart, str[i]);
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}
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/* Check the timing error. */
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if (uart->output_queue_error_high > 2 || uart->output_queue_error_low < -2) {
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tsoftuart_write(uart, "X\r\n", 3);
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}
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vTaskDelay(200 / portTICK_PERIOD_MS);
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}
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}
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void user_init(void)
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{
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uart_set_baud(0, 115200);
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printf("SDK version:%s\n", sdk_system_get_sdk_version());
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wificfg_init(80, NULL);
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/* Start two tasks writing to different pins. */
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static uint32_t tx_pin1 = 1;
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xTaskCreate(&tsoftuart_task, "tsoftuart1", 256, &tx_pin1, 1, NULL);
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static uint32_t tx_pin2 = 2;
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xTaskCreate(&tsoftuart_task, "tsoftuart2", 256, &tx_pin2, 1, NULL);
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}
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