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37 lines
1.2 KiB
C
37 lines
1.2 KiB
C
8 years ago
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/*
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* TrueRandom - A true random number generator for Arduino.
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* This is variant of original work originally implemented as:
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* https://code.google.com/archive/p/tinkerit/ https://github.com/Cathedrow/TrueRandom
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* Copyright (c) 2010 Peter Knight, Tinker.it! All rights reserved.
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* Now modified for the ESP8266
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*/
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#ifndef ESP8266TrueRandom_h
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#define ESP8266TrueRandom_h
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#include <Arduino.h>
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#include <inttypes.h>
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class ESP8266TrueRandomClass
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{
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public:
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ICACHE_FLASH_ATTR ESP8266TrueRandomClass();
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ICACHE_FLASH_ATTR int rand();
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ICACHE_FLASH_ATTR long random();
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ICACHE_FLASH_ATTR long random(long howBig);
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ICACHE_FLASH_ATTR long random(long howsmall, long how);
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ICACHE_FLASH_ATTR int randomBit(void);
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ICACHE_FLASH_ATTR char randomByte(void);
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ICACHE_FLASH_ATTR void memfill(char* location, int size);
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ICACHE_FLASH_ATTR void mac(uint8_t* macLocation);
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ICACHE_FLASH_ATTR void uuid(uint8_t* uuidLocation);
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ICACHE_FLASH_ATTR String uuidToString(uint8_t* uuidLocation);
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bool useRNG;
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private:
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unsigned long lastYield;
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ICACHE_FLASH_ATTR int randomBitRaw(void);
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ICACHE_FLASH_ATTR int randomBitRaw2(void);
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};
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extern ESP8266TrueRandomClass ESP8266TrueRandom;
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#endif
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