mirror of
https://github.com/RobTillaart/Arduino.git
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89 lines
1.9 KiB
C++
89 lines
1.9 KiB
C++
//
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// FILE: DS28CM00.cpp
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// AUTHOR: Rob Tillaart
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// PURPOSE: Library for the DS28CM00 unique identification chip.
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// VERSION: 0.2.2
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// URL: https://github.com/RobTillaart/DS28CM00
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//
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// HISTORY:
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// 0.1.0 2017-07-15 initial version
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// 0.2.0 2020-04-11 refactor, #pragma once, ESP support, multiple Wire, ESP support (start)
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// 0.2.1 2020-06-07 fix library.json
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// 0.2.2 2020-12-20 add arduino-CI + unit test
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#include "DS28CM00.h"
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#define DS28CM00_DEVICEADDRESS 0x50
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#define DS28CM00_UIDREGISTER 0x00
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#define DS28CM00_CONTROLREGISTER 0x08
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DS28CM00::DS28CM00(TwoWire *wire)
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{
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_wire = wire;
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}
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#if defined(ESP8266) || defined(ESP32)
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DS28CM00::DS28CM00(const uint8_t dataPin, const uint8_t clockPin)
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{
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_wire = &Wire;
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if ((dataPin < 255) && (clockPin < 255))
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{
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_wire->begin(dataPin, clockPin);
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} else {
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_wire->begin();
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}
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}
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#endif
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void DS28CM00::begin()
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{
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_wire->begin();
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setI2CMode();
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}
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bool DS28CM00::setMode(uint8_t mode)
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{
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_wire->beginTransmission(DS28CM00_DEVICEADDRESS);
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_wire->write(DS28CM00_CONTROLREGISTER);
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_wire->write(mode);
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int rv = _wire->endTransmission();
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return rv == 0;
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}
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bool DS28CM00::getMode(uint8_t &mode)
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{
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mode = DS28CM00_MODE_UNKNOWN;
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_wire->beginTransmission(DS28CM00_DEVICEADDRESS);
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_wire->write(DS28CM00_CONTROLREGISTER);
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int rv = _wire->endTransmission();
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if (rv != 0) return false;
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uint8_t read = _wire->requestFrom(DS28CM00_DEVICEADDRESS, 1);
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if (read < 1) return false;
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mode = _wire->read();
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return true;
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}
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bool DS28CM00::getUID(uint8_t *buffer)
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{
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_wire->beginTransmission(DS28CM00_DEVICEADDRESS);
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_wire->write(DS28CM00_UIDREGISTER);
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int rv = _wire->endTransmission();
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if (rv != 0) return false;
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uint8_t read = _wire->requestFrom(DS28CM00_DEVICEADDRESS, 8);
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if (read < 8) return false;
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for (uint8_t i = 0; i < 8; i++) buffer[i] = _wire->read();
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return true;
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}
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// -- END OF FILE --
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