Class library for using the true Random Number Generator on STM32F4xxx devices.
Dependents: MCU-Benchmark-Sute Doom_Flame-F429ZI_v02 Wether_Meter
STM32F4_RNG.cpp
00001 #include "STM32F4_RNG.h" 00002 #include "mbed.h" 00003 00004 00005 STM32F4_RNG::STM32F4_RNG() { 00006 RCC->AHB2ENR |= RCC_AHB2ENR_RNGEN; /* Enable RNG clock source */ 00007 RNG->CR |= RNG_CR_RNGEN; /* RNG Peripheral enable */ 00008 } 00009 00010 00011 unsigned long STM32F4_RNG::Get() { 00012 while (!(RNG->SR & (RNG_SR_DRDY))); /* Wait until one RNG number is ready */ 00013 00014 return RNG->DR; /* Get a 32-bit Random number */ 00015 }
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