Vergil Cola
/
MQTTGateway2
Fork of my original MQTTGateway
Embed:
(wiki syntax)
Show/hide line numbers
at24mac.h
00001 /* 00002 * Copyright (c) 2014-2015 ARM Limited. All rights reserved. 00003 * SPDX-License-Identifier: Apache-2.0 00004 * Licensed under the Apache License, Version 2.0 (the License); you may 00005 * not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an AS IS BASIS, WITHOUT 00012 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 #ifndef AT24MAC_H 00017 #define AT24MAC_H 00018 00019 #include "PinNames.h" 00020 #include "I2C.h" 00021 00022 /* 00023 * AT24MAC drivers. 00024 * 00025 * This is a EEPROM chip designed to contain factory programmed read-only EUI-64 or EUI-48, 00026 * a 128bit serial number and some user programmable EEPROM. 00027 * 00028 * AT24MAC602 contains EUI-64, use read_eui64() 00029 * AT24MAC402 contains EUI-64, use read_eui48() 00030 * 00031 * NOTE: You cannot use both EUI-64 and EUI-48. Chip contains only one of those. 00032 */ 00033 00034 class AT24Mac { 00035 public: 00036 AT24Mac(PinName sda, PinName scl); 00037 00038 /** 00039 * Read unique serial number from chip. 00040 * \param buf pointer to write serial number to. Must have space for 16 bytes. 00041 * \return zero on success, negative number on failure 00042 */ 00043 int read_serial(void *buf); 00044 00045 /** 00046 * Read EUI-64 from chip. 00047 * \param buf pointer to write EUI-64 to. Must have space for 8 bytes. 00048 * \return zero on success, negative number on failure 00049 */ 00050 int read_eui64(void *buf); 00051 00052 /** 00053 * Read EUI-48 from chip. 00054 * \param buf pointer to write EUI-48 to. Must have space for 6 bytes. 00055 * \return zero on success, negative number on failure 00056 */ 00057 int read_eui48(void *buf); 00058 00059 private: 00060 mbed::I2C _i2c; 00061 }; 00062 00063 #endif /* AT24MAC_H */
Generated on Tue Jul 12 2022 18:06:45 by 1.7.2