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i2c.h
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Wed, Aug 21, 09:17

i2c.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 __I2C_H
#define __I2C_H
#include "../main.h"
#define I2C_SDA_Pin GPIO_Pin_9
#define I2C_SDA_PinSource GPIO_PinSource9
#define I2C_SDA_Port GPIOB
#define I2C_SCL_Pin GPIO_Pin_8
#define I2C_SCL_PinSource GPIO_PinSource8
#define I2C_SCL_Port GPIOB
#define I2C_PERIPH I2C1
#define I2C_GPIO_AF GPIO_AF_I2C1
/** @defgroup I2C Driver / I2C
* @brief Driver for the I2C bus communication peripheral.
*
* This driver controls the I2C peripheral of the STM32, that is accessible
* from the digital extension connector of the HRI board.
*
* Call i2c_Init() first in the initialization code. Then, the communication
* function i2c_readRegister() or i2c_writeRegister() can be used.
* Note that both functions are synchronous, hence blocking the execution until
* the operation completes.
*
* @addtogroup I2C
* @{
*/
void i2c_Init(void);
void i2c_WriteRegister(uint8_t slaveAddress, uint8_t registerAddress,
uint8_t registerValue, bool *ok);
void i2c_WriteMultiBytesRegister(uint8_t slaveAddress, uint8_t registerAddress,
uint8_t const *registerValue,
uint8_t registerSize, bool *ok);
uint8_t i2c_ReadRegister(uint8_t slaveAddress, uint8_t registerAddress,
bool *ok);
void i2c_ReadMultiBytesRegister(uint8_t slaveAddress, uint8_t registerAddress,
uint8_t *readData, uint8_t registerSize,
bool *ok);
/**
* @}
*/
#endif

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