86 lines
3.3 KiB
Plaintext
86 lines
3.3 KiB
Plaintext
/**
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@page ADC_ContinuousConversion_TriggerSW ADC example
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@verbatim
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******************** (C) COPYRIGHT 2016 STMicroelectronics *******************
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* @file Examples_LL/ADC/ADC_ContinuousConversion_TriggerSW/readme.txt
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* @author MCD Application Team
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* @brief Description of the ADC_ContinuousConversion_TriggerSW example.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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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 an ADC peripheral to perform continuous ADC conversions on a
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channel, from a software start.
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This example is based on the STM32F1xx ADC LL API.
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The peripheral initialization is done using LL unitary service functions
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for optimization purposes (performance and size).
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Example configuration:
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ADC is configured to convert a single channel, in continuous conversion mode,
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from SW trigger.
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Example execution:
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From the first press on User Button, the ADC converts the selected channel
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continuously.
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After the first trigger (software start in this example), following conversions
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are launched successively automatically, indefinitely.
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Software polls for the first conversion completion
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and stores it into a variable, LED2 is turned on.
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Main program reads frequently ADC conversion data
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(without waiting for end of each conversion: software reads data
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when main program execution pointer is available and can let
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some ADC conversions data unread and overwritten by newer data)
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and stores it into the same variable.
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For debug: variables to monitor with debugger watch window:
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- "uhADCxConvertedData": ADC group regular conversion data
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- "uhADCxConvertedData_Voltage_mVolt": ADC conversion data computation to physical values
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Connection needed:
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Use an external power supply, adjust supply voltage and connect it to analog input pin (cf pin below).
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Other peripherals used:
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1 GPIO for User Button
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1 GPIO for LED2
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1 GPIO for analog input: PA.04 (Arduino connector CN8 pin A2, Morpho connector CN7 pin 32)
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@par Directory contents
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- ADC/ADC_ContinuousConversion_TriggerSW/Inc/stm32f1xx_it.h Interrupt handlers header file
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- ADC/ADC_ContinuousConversion_TriggerSW/Inc/main.h Header for main.c module
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- ADC/ADC_ContinuousConversion_TriggerSW/Inc/stm32_assert.h Template file to include assert_failed function
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- ADC/ADC_ContinuousConversion_TriggerSW/Src/stm32f1xx_it.c Interrupt handlers
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- ADC/ADC_ContinuousConversion_TriggerSW/Src/main.c Main program
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- ADC/ADC_ContinuousConversion_TriggerSW/Src/system_stm32f1xx.c STM32F1xx system source file
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@par Hardware and Software environment
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- This example runs on STM32F103xB devices.
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- This example has been tested with STM32F103RB-Nucleo 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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*/
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