72 lines
3.2 KiB
Plaintext
72 lines
3.2 KiB
Plaintext
/**
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@page RNG_GenerateRandomNumbers_IT RNG : Random Number Generation using IT
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@verbatim
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******************************************************************************
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* @file Examples_LL/RNG/RNG_GenerateRandomNumbers_IT/readme.txt
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* @author MCD Application Team
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* @brief Description of the RNG_GenerateRandomNumbers_IT example.
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******************************************************************************
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*
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* Copyright (c) 2020 STMicroelectronics. All rights reserved.
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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@endverbatim
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@par Example Description
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Configuration of the RNG to generate 32-bit long random numbers using interrupts. The peripheral initialization uses LL unitary service
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functions for optimization purposes (performance and size).
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Example execution:
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After startup from reset and system configuration, RNG configuration is performed.
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(Configure Main PLL to enable 48M domain, then enable PLLQ output mapped on 48MHz domain clock).
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User is then asked to press User push-button (B1) (LED2 blinking fast).
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On User push-button (B1) press, several (8) Random 32bit numbers are generated
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(On each raised RNG interrupt, a random number is generated and retrieved from DR register).
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Corresponding generated values are available and stored in a u32 array (aRandom32bit),
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whose content could be displayed using debugger (Watch or LiveWatch features).
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After successful Random numbers generation, LED2 is turned On.
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In case of errors, LED2 is slowly blinking (1sec period).
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@par Keywords
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Analog, RNG, Random, FIPS PUB 140-2, Analog Random number generator, Entropy, Period, Interrupt
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@par Directory contents
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- RNG/RNG_GenerateRandomNumbers_IT/Inc/stm32wlxx_it.h Interrupt handlers header file
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- RNG/RNG_GenerateRandomNumbers_IT/Inc/main.h Header for main.c module
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- RNG/RNG_GenerateRandomNumbers_IT/Inc/stm32_assert.h Template file to include assert_failed function
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- RNG/RNG_GenerateRandomNumbers_IT/Src/stm32wlxx_it.c Interrupt handlers
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- RNG/RNG_GenerateRandomNumbers_IT/Src/main.c Main program
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- RNG/RNG_GenerateRandomNumbers_IT/Src/system_stm32wlxx.c STM32WLxx system source file
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@par Hardware and Software environment
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- This example runs on STM32WL55JCIx devices.
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- This example has been tested with NUCLEO-WL55JC RevC board and can be
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easily tailored to any other supported device and development board.
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@par How to use it ?
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In order to make the program work, you must do the following :
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- Open your preferred toolchain
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- Rebuild all files and load your image into target memory
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- Run the example
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- Push User push-button (B1) and use Variable watch window from debugger to access to values of generated numbers.
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(A break point could be set on LED_On() call, at end of RandomNumbersGeneration_IT() function).
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* <h3><center>© COPYRIGHT STMicroelectronics</center></h3>
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*/
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