uart.h

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/*
 * Copyright (C) 2017 EPFL-LSRO (Laboratoire de Systemes Robotiques).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef __UART_H
#define __UART_H

#include "../main.h"
#include "../lib/circular_buffer.h"

#define USART_RX_Pin                                GPIO_Pin_5
#define USART_RX_PinSource                  GPIO_PinSource5
#define USART_RX_Port                               GPIOD
#define USART_TX_Pin                                GPIO_Pin_6
#define USART_TX_PinSource                  GPIO_PinSource6
#define USART_TX_Port                               GPIOD

#define USART_PC_COMM  USART2 // UART peripheral used for the comm with the PC.

typedef void (*uart_rxByteHandlerFunc)(uint8_t rxByte);

void uart_Init(void);
void uart_Step(void);
cb_CircularBuffer* uart_GetRxQueue(void);
void uart_SendByteAsync(uint8_t data);
void uart_SendBytesAsync(uint8_t *data, int length);
void uart_FlushTx(void);

#endif