ST / X_NUCLEO_NFC02A1

X_NUCLEO_NFC02A1 library for M24LR

Dependencies:   ST_INTERFACES

Dependents:   HelloWorld_NFC02A1_mbedOS HelloWorld_NFC02A1laatste HelloWorld_NFC02A1

Fork of X_NUCLEO_NFC02A1 by ST Expansion SW Team

X-NUCLEO-NFC02A1 Dynamic NFC Tag Expansion Board Firmware Package

Introduction

This firmware package includes Components Device Drivers, Board Support Package and example applications for STMicroelectronics X-NUCLEO-NFC02A1 Dynamic NFC Tag Expansion Board based on M24LR.

Firmware Library

Class X_NUCLEO_NFC02A1 is intended to represent the Dynamic NFC Tag Expansion Board with the same name.
It provides an API to access to the M24LR component and to the three onboard LEDs.
It is intentionally implemented as a singleton because only one X_NUCLEO_NFC02A1 at a time might be deployed in a HW component stack.
The library also provides an implementation of the NDEF library API for M24LR, providing an simple way to read/write NDEF formatted messages from/to the M24LR dynamic NFC tag.

Example application

Hello World is a simple application to program and read an URI from the NFC tag.

X_NUCLEO_COMMON/DevI2C/DevI2C.h@8:7c4cf671960b, 2017-07-12 (annotated)

Committer:
Davidroid
Date:
Wed Jul 12 12:34:12 2017 +0000
Revision:
8:7c4cf671960b
Parent:
0:71bff5ad0a49 
Updated to fit ARM mbed coding style.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rosarium 0:71bff5ad0a49 1 /**
rosarium 0:71bff5ad0a49 2 ******************************************************************************
rosarium 0:71bff5ad0a49 3 * @file DevI2C.h
rosarium 0:71bff5ad0a49 4 * @author AST / EST / AMG-CL
rosarium 0:71bff5ad0a49 5 * @version V0.0.2
rosarium 0:71bff5ad0a49 6 * @date 25-July-2016
rosarium 0:71bff5ad0a49 7 * @brief Header file for a special I2C class DevI2C which provides some
rosarium 0:71bff5ad0a49 8 * helper function for on-board communication
rosarium 0:71bff5ad0a49 9 ******************************************************************************
rosarium 0:71bff5ad0a49 10 * @attention
rosarium 0:71bff5ad0a49 11 *
rosarium 0:71bff5ad0a49 12 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
rosarium 0:71bff5ad0a49 13 *
rosarium 0:71bff5ad0a49 14 * Redistribution and use in source and binary forms, with or without modification,
rosarium 0:71bff5ad0a49 15 * are permitted provided that the following conditions are met:
rosarium 0:71bff5ad0a49 16 * 1. Redistributions of source code must retain the above copyright notice,
rosarium 0:71bff5ad0a49 17 * this list of conditions and the following disclaimer.
rosarium 0:71bff5ad0a49 18 * 2. Redistributions in binary form must reproduce the above copyright notice,
rosarium 0:71bff5ad0a49 19 * this list of conditions and the following disclaimer in the documentation
rosarium 0:71bff5ad0a49 20 * and/or other materials provided with the distribution.
rosarium 0:71bff5ad0a49 21 * 3. Neither the name of STMicroelectronics nor the names of its contributors
rosarium 0:71bff5ad0a49 22 * may be used to endorse or promote products derived from this software
rosarium 0:71bff5ad0a49 23 * without specific prior written permission.
rosarium 0:71bff5ad0a49 24 *
rosarium 0:71bff5ad0a49 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
rosarium 0:71bff5ad0a49 26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
rosarium 0:71bff5ad0a49 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
rosarium 0:71bff5ad0a49 28 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
rosarium 0:71bff5ad0a49 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
rosarium 0:71bff5ad0a49 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
rosarium 0:71bff5ad0a49 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
rosarium 0:71bff5ad0a49 32 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
rosarium 0:71bff5ad0a49 33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
rosarium 0:71bff5ad0a49 34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
rosarium 0:71bff5ad0a49 35 *
rosarium 0:71bff5ad0a49 36 ******************************************************************************
rosarium 0:71bff5ad0a49 37 */
rosarium 0:71bff5ad0a49 38
rosarium 0:71bff5ad0a49 39 /* Define to prevent from recursive inclusion --------------------------------*/
rosarium 0:71bff5ad0a49 40 #ifndef __DEV_I2C_H
rosarium 0:71bff5ad0a49 41 #define __DEV_I2C_H
rosarium 0:71bff5ad0a49 42
rosarium 0:71bff5ad0a49 43 /* Includes ------------------------------------------------------------------*/
rosarium 0:71bff5ad0a49 44 #include "mbed.h"
rosarium 0:71bff5ad0a49 45
rosarium 0:71bff5ad0a49 46 /* Classes -------------------------------------------------------------------*/
rosarium 0:71bff5ad0a49 47 /** Helper class DevI2C providing functions for multi-register I2C communication
rosarium 0:71bff5ad0a49 48 * common for a series of I2C devices
rosarium 0:71bff5ad0a49 49 */
rosarium 0:71bff5ad0a49 50 class DevI2C : public I2C
rosarium 0:71bff5ad0a49 51 {
rosarium 0:71bff5ad0a49 52 public:
rosarium 0:71bff5ad0a49 53
rosarium 0:71bff5ad0a49 54 /** Create a DevI2C Master interface, connected to the specified pins
rosarium 0:71bff5ad0a49 55 *
rosarium 0:71bff5ad0a49 56 * @param sda I2C data line pin
rosarium 0:71bff5ad0a49 57 * @param scl I2C clock line pin
rosarium 0:71bff5ad0a49 58 */
rosarium 0:71bff5ad0a49 59 DevI2C(PinName sda, PinName scl) : I2C(sda, scl) {}
rosarium 0:71bff5ad0a49 60
rosarium 0:71bff5ad0a49 61 /**
rosarium 0:71bff5ad0a49 62 * @brief Writes a buffer towards the I2C peripheral device.
rosarium 0:71bff5ad0a49 63 * @param pBuffer pointer to the byte-array data to send
rosarium 0:71bff5ad0a49 64 * @param DeviceAddr specifies the peripheral device slave address.
rosarium 0:71bff5ad0a49 65 * @param RegisterAddr specifies the internal address register
rosarium 0:71bff5ad0a49 66 * where to start writing to (must be correctly masked).
rosarium 0:71bff5ad0a49 67 * @param NumByteToWrite number of bytes to be written.
rosarium 0:71bff5ad0a49 68 * @retval 0 if ok,
rosarium 0:71bff5ad0a49 69 * @retval -1 if an I2C error has occured, or
rosarium 0:71bff5ad0a49 70 * @retval -2 on temporary buffer overflow (i.e. NumByteToWrite was too high)
rosarium 0:71bff5ad0a49 71 * @note On some devices if NumByteToWrite is greater
rosarium 0:71bff5ad0a49 72 * than one, the RegisterAddr must be masked correctly!
rosarium 0:71bff5ad0a49 73 */
rosarium 0:71bff5ad0a49 74 int i2c_write(uint8_t* pBuffer, uint8_t DeviceAddr, uint8_t RegisterAddr,
rosarium 0:71bff5ad0a49 75 uint16_t NumByteToWrite)
rosarium 0:71bff5ad0a49 76 {
rosarium 0:71bff5ad0a49 77 int ret;
rosarium 0:71bff5ad0a49 78 uint8_t tmp[TEMP_BUF_SIZE];
rosarium 0:71bff5ad0a49 79
rosarium 0:71bff5ad0a49 80 if(NumByteToWrite >= TEMP_BUF_SIZE) return -2;
rosarium 0:71bff5ad0a49 81
rosarium 0:71bff5ad0a49 82 /* First, send device address. Then, send data and STOP condition */
rosarium 0:71bff5ad0a49 83 tmp[0] = RegisterAddr;
rosarium 0:71bff5ad0a49 84 memcpy(tmp+1, pBuffer, NumByteToWrite);
rosarium 0:71bff5ad0a49 85
rosarium 0:71bff5ad0a49 86 ret = write(DeviceAddr, (const char*)tmp, NumByteToWrite+1, false);
rosarium 0:71bff5ad0a49 87
rosarium 0:71bff5ad0a49 88 if(ret) return -1;
rosarium 0:71bff5ad0a49 89 return 0;
rosarium 0:71bff5ad0a49 90 }
rosarium 0:71bff5ad0a49 91
rosarium 0:71bff5ad0a49 92 /**
rosarium 0:71bff5ad0a49 93 * @brief Writes a buffer towards the I2C peripheral device.
rosarium 0:71bff5ad0a49 94 * @param pBuffer pointer to the byte-array data to send
rosarium 0:71bff5ad0a49 95 * @param DeviceAddr specifies the peripheral device slave address.
rosarium 0:71bff5ad0a49 96 * @param RegisterAddr specifies the internal address register
rosarium 0:71bff5ad0a49 97 * where to start writing to (must be correctly masked).
rosarium 0:71bff5ad0a49 98 * @param NumByteToWrite number of bytes to be written.
rosarium 0:71bff5ad0a49 99 * @retval 0 if ok,
rosarium 0:71bff5ad0a49 100 * @retval -1 if an I2C error has occured, or
rosarium 0:71bff5ad0a49 101 * @retval -2 on temporary buffer overflow (i.e. NumByteToWrite was too high)
rosarium 0:71bff5ad0a49 102 * @note On some devices if NumByteToWrite is greater
rosarium 0:71bff5ad0a49 103 * than one, the RegisterAddr must be masked correctly!
rosarium 0:71bff5ad0a49 104 */
rosarium 0:71bff5ad0a49 105 int i2c_write(uint8_t* pBuffer, uint8_t DeviceAddr, uint16_t RegisterAddr,
rosarium 0:71bff5ad0a49 106 uint16_t NumByteToWrite)
rosarium 0:71bff5ad0a49 107 {
rosarium 0:71bff5ad0a49 108 int ret;
rosarium 0:71bff5ad0a49 109 uint8_t tmp[TEMP_BUF_SIZE];
rosarium 0:71bff5ad0a49 110
rosarium 0:71bff5ad0a49 111 if(NumByteToWrite >= TEMP_BUF_SIZE) return -2;
rosarium 0:71bff5ad0a49 112
rosarium 0:71bff5ad0a49 113 /* First, send device address. Then, send data and STOP condition */
rosarium 0:71bff5ad0a49 114 tmp[0] = (RegisterAddr >> 8) & 0xFF;
rosarium 0:71bff5ad0a49 115 tmp[1] = (RegisterAddr) & 0xFF;
rosarium 0:71bff5ad0a49 116 memcpy(tmp+2, pBuffer, NumByteToWrite);
rosarium 0:71bff5ad0a49 117
rosarium 0:71bff5ad0a49 118 ret = write(DeviceAddr, (const char*)tmp, NumByteToWrite+2, false);
rosarium 0:71bff5ad0a49 119
rosarium 0:71bff5ad0a49 120 if(ret) return -1;
rosarium 0:71bff5ad0a49 121 return 0;
rosarium 0:71bff5ad0a49 122 }
rosarium 0:71bff5ad0a49 123 /**
rosarium 0:71bff5ad0a49 124 * @brief Reads a buffer from the I2C peripheral device.
rosarium 0:71bff5ad0a49 125 * @param pBuffer pointer to the byte-array to read data in to
rosarium 0:71bff5ad0a49 126 * @param DaviceAddr specifies the peripheral device slave address.
rosarium 0:71bff5ad0a49 127 * @param RegisterAddr specifies the internal address register
rosarium 0:71bff5ad0a49 128 * where to start reading from (must be correctly masked).
rosarium 0:71bff5ad0a49 129 * @param NumByteToRead number of bytes to be read.
rosarium 0:71bff5ad0a49 130 * @retval 0 if ok,
rosarium 0:71bff5ad0a49 131 * @retval -1 if an I2C error has occured
rosarium 0:71bff5ad0a49 132 * @note On some devices if NumByteToWrite is greater
rosarium 0:71bff5ad0a49 133 * than one, the RegisterAddr must be masked correctly!
rosarium 0:71bff5ad0a49 134 */
rosarium 0:71bff5ad0a49 135 int i2c_read(uint8_t* pBuffer, uint8_t DeviceAddr, uint16_t RegisterAddr,
rosarium 0:71bff5ad0a49 136 uint16_t NumByteToRead)
rosarium 0:71bff5ad0a49 137 {
rosarium 0:71bff5ad0a49 138 int ret;
rosarium 0:71bff5ad0a49 139 uint8_t reg_addr[2];
rosarium 0:71bff5ad0a49 140 reg_addr[0] = (RegisterAddr >> 8) & 0xFF;
rosarium 0:71bff5ad0a49 141 reg_addr[1] = (RegisterAddr) & 0xFF;
rosarium 0:71bff5ad0a49 142 /* Send device address, with no STOP condition */
rosarium 0:71bff5ad0a49 143 ret = write(DeviceAddr, (const char*)reg_addr, 2, true);
rosarium 0:71bff5ad0a49 144 if(!ret) {
rosarium 0:71bff5ad0a49 145 /* Read data, with STOP condition */
rosarium 0:71bff5ad0a49 146 ret = read(DeviceAddr, (char*)pBuffer, NumByteToRead, false);
rosarium 0:71bff5ad0a49 147 }
rosarium 0:71bff5ad0a49 148
rosarium 0:71bff5ad0a49 149 if(ret)
rosarium 0:71bff5ad0a49 150 return -1;
rosarium 0:71bff5ad0a49 151 else
rosarium 0:71bff5ad0a49 152 return 0;
rosarium 0:71bff5ad0a49 153 }
rosarium 0:71bff5ad0a49 154
rosarium 0:71bff5ad0a49 155 /**
rosarium 0:71bff5ad0a49 156 * @brief Reads a buffer from the I2C peripheral device.
rosarium 0:71bff5ad0a49 157 * @param pBuffer pointer to the byte-array to read data in to
rosarium 0:71bff5ad0a49 158 * @param DaviceAddr specifies the peripheral device slave address.
rosarium 0:71bff5ad0a49 159 * @param RegisterAddr specifies the internal address register
rosarium 0:71bff5ad0a49 160 * where to start reading from (must be correctly masked).
rosarium 0:71bff5ad0a49 161 * @param NumByteToRead number of bytes to be read.
rosarium 0:71bff5ad0a49 162 * @retval 0 if ok,
rosarium 0:71bff5ad0a49 163 * @retval -1 if an I2C error has occured
rosarium 0:71bff5ad0a49 164 * @note On some devices if NumByteToWrite is greater
rosarium 0:71bff5ad0a49 165 * than one, the RegisterAddr must be masked correctly!
rosarium 0:71bff5ad0a49 166 */
rosarium 0:71bff5ad0a49 167 int i2c_read(uint8_t* pBuffer, uint8_t DeviceAddr, uint8_t RegisterAddr,
rosarium 0:71bff5ad0a49 168 uint16_t NumByteToRead)
rosarium 0:71bff5ad0a49 169 {
rosarium 0:71bff5ad0a49 170 int ret;
rosarium 0:71bff5ad0a49 171
rosarium 0:71bff5ad0a49 172 /* Send device address, with no STOP condition */
rosarium 0:71bff5ad0a49 173 ret = write(DeviceAddr, (const char*)&RegisterAddr, 1, true);
rosarium 0:71bff5ad0a49 174 if(!ret) {
rosarium 0:71bff5ad0a49 175 /* Read data, with STOP condition */
rosarium 0:71bff5ad0a49 176 ret = read(DeviceAddr, (char*)pBuffer, NumByteToRead, false);
rosarium 0:71bff5ad0a49 177 }
rosarium 0:71bff5ad0a49 178
rosarium 0:71bff5ad0a49 179 if(ret) return -1;
rosarium 0:71bff5ad0a49 180 return 0;
rosarium 0:71bff5ad0a49 181 }
rosarium 0:71bff5ad0a49 182
rosarium 0:71bff5ad0a49 183 private:
rosarium 0:71bff5ad0a49 184 static const unsigned int TEMP_BUF_SIZE = 32;
rosarium 0:71bff5ad0a49 185 };
rosarium 0:71bff5ad0a49 186
rosarium 0:71bff5ad0a49 187 #endif /* __DEV_I2C_H */