ext_uart.h
97d013a6d9e4highres-probe

ext_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 __EXUART_H
			#define __EXUART_H

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

			/** @defgroup EXT_UART Driver / Extension UART
			* @brief Driver for the UART serial communication peripheral.
			*
			* This driver controls the UART peripheral of the STM32, connected to the
			* digital extension connector.
			*
			* Call exuart_Init() first in the initialization code. To send data, call
			* exuart_SendByteAsync(). To receive data, check first that bytes are
			* available by calling exuart_ReceivedBytesCount(), then call
			* exuart_GetByte().
			*
			* @addtogroup EXT_UART
			* @{
			*/

			void exuart_Init(uint32_t baudRate);
			void exuart_SendByteAsync(uint8_t data);
			void exuart_SendBytesAsync(uint8_t *data, int length);
			uint16_t exuart_ReceivedBytesCount(void);
			uint8_t exuart_GetByte(void);

			/**
			* @}
			*/

			#endif