74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017, 2018 Scott Shawcroft for Adafruit Industries
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* Copyright (c) 2019 Lucian Copeland for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, 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 DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/mphal.h"
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#include <string.h>
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#include "supervisor/serial.h"
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#include "stm32f4xx_hal.h"
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#include "stm32f4/gpio.h"
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UART_HandleTypeDef huart2;
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void serial_init(void) {
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huart2.Instance = USART2;
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huart2.Init.BaudRate = 115200;
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huart2.Init.WordLength = UART_WORDLENGTH_8B;
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huart2.Init.StopBits = UART_STOPBITS_1;
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huart2.Init.Parity = UART_PARITY_NONE;
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huart2.Init.Mode = UART_MODE_TX_RX;
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huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart2.Init.OverSampling = UART_OVERSAMPLING_16;
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if (HAL_UART_Init(&huart2) == HAL_OK) {
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stm32f4_peripherals_status_led(1,1);
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}
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}
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bool serial_connected(void) {
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return true;
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}
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char serial_read(void) {
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uint8_t data;
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HAL_UART_Receive(&huart2, &data, 1,500);
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return data;
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}
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bool serial_bytes_available(void) {
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return __HAL_UART_GET_FLAG(&huart2, UART_FLAG_RXNE);
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}
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void serial_write(const char *text) {
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serial_write_substring(text, strlen(text));
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}
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void serial_write_substring(const char *text, uint32_t len) {
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if (len == 0) {
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return;
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}
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HAL_UART_Transmit(&huart2, (uint8_t *)text, len, 5000);
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}
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