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/**
@page UTILS_ConfigureSystemClock UTILS example
@verbatim
******************************************************************************
* @file Examples_LL/UTILS/UTILS_ConfigureSystemClock/readme.txt
* @author MCD Application Team
* @brief Description of the UTILS example.
******************************************************************************
*
* Copyright (c) 2019-2021 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
@endverbatim
@par Example Description
Use of UTILS LL API to configure the system clock using PLL with HSI as source clock.
The user application just needs to calculate the PLL parameters using STM32CubeMX and call the UTILS LL API.
System starts with clock used after reset.
Then, a system clock switch is done to PLL with HSI as PLL clock source. Automatically, FLASH latency
is tuned according to system constraints described in the reference manual.
User can easily set its own PLL parameters in changing global variable used to store them.
A LED2 toggle of 1sec provides this information that system is well configured to requested frequency.
Anyway, user can connect on oscilloscope to MCO pin (PA.08) to check requested frequency:
- SYSCLK frequency with frequency value around @64MHz.
@par Keywords
Utils, system, Clock, HSI, PLL, flash latency, SYSCLK, frequency Oscilloscope
@par Directory contents
- UTILS/UTILS_ConfigureSystemClock/Inc/stm32wbxx_it.h Interrupt handlers header file
- UTILS/UTILS_ConfigureSystemClock/Inc/main.h Header for main.c module
- UTILS/UTILS_ConfigureSystemClock/Inc/stm32_assert.h Template file to include assert_failed function
- UTILS/UTILS_ConfigureSystemClock/Src/stm32wbxx_it.c Interrupt handlers
- UTILS/UTILS_ConfigureSystemClock/Src/main.c Main program
- UTILS/UTILS_ConfigureSystemClock/Src/system_stm32wbxx.c STM32WBxx system source file
@par Hardware and Software environment
- This example runs on STM32WB55xx devices.
- This example has been tested with P-NUCLEO-WB55 board and can be
easily tailored to any other supported device and development board.
- P-NUCLEO-WB55 Set-up
- Connect the MCO pin to an oscilloscope to monitor the different waveforms:
- PA.08: Arduino connector CN9 pin D6, Morpho connector CN10 pin 25 (MB1355)
@par How to use it ?
In order to make the program work, you must do the following :
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>© COPYRIGHT STMicroelectronics</center></h3>
*/
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