2019-07-08 12:45:16 +01:00
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/**
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@page ADC_RegularConversion_Polling conversion using Polling
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@verbatim
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******************** (C) COPYRIGHT 2016 STMicroelectronics *******************
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* @file ADC/ADC_RegularConversion_Polling/readme.txt
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* @author MCD Application Team
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* @brief Description of the ADC RegularConversion Polling example.
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******************************************************************************
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2019-10-18 12:36:04 +01:00
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* @attention
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2019-07-08 12:45:16 +01:00
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*
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2019-10-18 12:36:04 +01:00
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* <h2><center>© Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.</center></h2>
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2019-07-08 12:45:16 +01:00
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*
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2019-10-18 12:36:04 +01:00
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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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2019-07-08 12:45:16 +01:00
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*
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******************************************************************************
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@endverbatim
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@par Example Description
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How to use the ADC in Polling mode to convert data through the HAL API.
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When the end of conversion occurs, the converted data of ADC1 DR register is
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affected to the uhADCxConvertedValue variable.
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Conversion time (reference manual, Reset and Clock control part):
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The function SystemClock_Config() configures the clock divider as follows:
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1) The system clock is 48MHz.
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2) AHB Prescaler = 1 => AHB clock is 48 MHz.
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2) APB Prescaler = 1 => APB clock is 48 MHz.
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3) ADC Prescaler = 4 => ADC clock is 12 MHz. (14 Mhz max)
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Sampling time is set to ADC_SAMPLETIME_28CYCLES_5 (28.5 cycles).
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ConvTime = Sampling time + 12.5 ADC clock cycles.
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= 41 clock cycles
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= 3.42 us
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User can vary the ADC_CHANNEL_10 voltage using the Eval Board potentiometer (RV3) connected to PC.00.
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The converted value is monitored through debugger: uhADCxConvertedValue variable.
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STM32 board's LEDs can be used to monitor the transfer status:
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- LED3 is ON when there is an error in initialization.
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@par Directory contents
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- ADC/ADC_RegularConversion_Polling/Inc/stm32f0xx_hal_conf.h HAL configuration file
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- ADC/ADC_RegularConversion_Polling/Inc/stm32f0xx_it.h Interrupt handlers header file
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- ADC/ADC_RegularConversion_Polling/Inc/main.h Header for main.c module
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- ADC/ADC_RegularConversion_Polling/Src/stm32f0xx_it.c Interrupt handlers
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- ADC/ADC_RegularConversion_Polling/Src/main.c Main program
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- ADC/ADC_RegularConversion_Polling/Src/stm32f0xx_hal_msp.c HAL MSP file
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- ADC/ADC_RegularConversion_Polling/Src/system_stm32f0xx.c STM32F0xx system source file
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@par Hardware and Software environment
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- This example runs on STM32F0xx devices.
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- This example has been tested with STM32F072B-Discovery 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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* <h3><center>© COPYRIGHT STMicroelectronics</center></h3>
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*/
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