Diff: X_NUCLEO_COMMON/DevI2C/DevI2C.h

Revision:

6:9a5313607546

Parent:

5:6020b7ced569

--- a/X_NUCLEO_COMMON/DevI2C/DevI2C.h	Tue Nov 03 15:09:55 2020 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,122 +0,0 @@
-/**
- ******************************************************************************
- * @file    DevI2C.h
- * @author  AST / EST
- * @version V1.1.0
- * @date    21-January-2016
- * @brief   Header file for a special I2C class DevI2C which provides some
- *          helper function for on-board communication
- ******************************************************************************
- * @attention
- *
- * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *   1. Redistributions of source code must retain the above copyright notice,
- *      this list of conditions and the following disclaimer.
- *   2. Redistributions in binary form must reproduce the above copyright notice,
- *      this list of conditions and the following disclaimer in the documentation
- *      and/or other materials provided with the distribution.
- *   3. Neither the name of STMicroelectronics nor the names of its contributors
- *      may be used to endorse or promote products derived from this software
- *      without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- ******************************************************************************
- */
-
-/* Define to prevent from recursive inclusion --------------------------------*/
-#ifndef __DEV_I2C_H
-#define __DEV_I2C_H
-
-/* Includes ------------------------------------------------------------------*/
-#include "mbed.h"
-#include "pinmap.h"
-
-/* Classes -------------------------------------------------------------------*/
-/** Helper class DevI2C providing functions for multi-register I2C communication
- *  common for a series of I2C devices
- */
-class DevI2C : public I2C
-{
-public:
-    /** Create a DevI2C Master interface, connected to the specified pins
-     *
-     *  @param sda I2C data line pin
-     *  @param scl I2C clock line pin
-     */
-    DevI2C(PinName sda, PinName scl) : I2C(sda, scl) {}
-    
-    /**
-     * @brief  Writes a buffer towards the I2C peripheral device.
-     * @param  pBuffer pointer to the byte-array data to send
-     * @param  DeviceAddr specifies the peripheral device slave address.
-     * @param  RegisterAddr specifies the internal address register
-     *         where to start writing to (must be correctly masked).
-     * @param  NumByteToWrite number of bytes to be written.
-     * @retval 0 if ok,
-     * @retval -1 if an I2C error has occured, or
-     * @retval -2 on temporary buffer overflow (i.e. NumByteToWrite was too high)
-     * @note   On some devices if NumByteToWrite is greater
-     *         than one, the RegisterAddr must be masked correctly!
-     */
-    int i2c_write(uint8_t* pBuffer, uint8_t DeviceAddr, uint8_t RegisterAddr,
-                  uint16_t NumByteToWrite) {
-        int ret;
-        uint8_t tmp[TEMP_BUF_SIZE];
-
-        if(NumByteToWrite >= TEMP_BUF_SIZE) return -2;
-
-        /* First, send device address. Then, send data and STOP condition */
-        tmp[0] = RegisterAddr;
-        memcpy(tmp+1, pBuffer, NumByteToWrite);
-
-        ret = write(DeviceAddr, (const char*)tmp, NumByteToWrite+1, false);
-
-        if(ret) return -1;
-        return 0;
-    }
-
-    /**
-     * @brief  Reads a buffer from the I2C peripheral device.
-     * @param  pBuffer pointer to the byte-array to read data in to
-     * @param  DeviceAddr specifies the peripheral device slave address.
-     * @param  RegisterAddr specifies the internal address register
-     *         where to start reading from (must be correctly masked).
-     * @param  NumByteToRead number of bytes to be read.
-     * @retval 0 if ok,
-     * @retval -1 if an I2C error has occured
-     * @note   On some devices if NumByteToWrite is greater
-     *         than one, the RegisterAddr must be masked correctly!
-     */
-    int i2c_read(uint8_t* pBuffer, uint8_t DeviceAddr, uint8_t RegisterAddr,
-                 uint16_t NumByteToRead) {
-        int ret;
-
-        /* Send device address, with no STOP condition */
-        ret = write(DeviceAddr, (const char*)&RegisterAddr, 1, true);
-        if(!ret) {
-            /* Read data, with STOP condition  */
-            ret = read(DeviceAddr, (char*)pBuffer, NumByteToRead, false);
-        }
-
-        if(ret) return -1;
-        return 0;
-    }
-
-private:
-    static const unsigned int TEMP_BUF_SIZE = 256;  //~~ was 32
-};
-
-#endif /* __DEV_I2C_H */