81 lines
3.3 KiB
Plaintext
81 lines
3.3 KiB
Plaintext
/**
|
|
@page ADC_SingleConversion_TriggerSW ADC example
|
|
|
|
@verbatim
|
|
******************** (C) COPYRIGHT 2016 STMicroelectronics *******************
|
|
* @file Examples_LL/ADC/ADC_SingleConversion_TriggerSW/readme.txt
|
|
* @author MCD Application Team
|
|
* @brief Description of the ADC_SingleConversion_TriggerSW example.
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* <h2><center>© Copyright (c) 2016 STMicroelectronics.
|
|
* All rights reserved.</center></h2>
|
|
*
|
|
* This software component is licensed by ST under BSD 3-Clause license,
|
|
* the "License"; You may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at:
|
|
* opensource.org/licenses/BSD-3-Clause
|
|
*
|
|
******************************************************************************
|
|
@endverbatim
|
|
|
|
@par Example Description
|
|
|
|
How to use an ADC peripheral to perform a single ADC conversion on a channel
|
|
at each software start. This example uses the polling programming model (for
|
|
interrupt or DMA programming models, please refer to other examples).
|
|
This example is based on the STM32F1xx ADC LL API.
|
|
The peripheral initialization is done using LL unitary service functions for
|
|
optimization purposes (performance and size).
|
|
|
|
Example configuration:
|
|
ADC is configured to convert a single channel, in single conversion mode,
|
|
from SW trigger.
|
|
|
|
Example execution:
|
|
At each press on User Button, the ADC performs 1 conversion of the selected channel.
|
|
Software polls for conversion completion.
|
|
When conversion is completed, main program reads conversion data
|
|
from ADC data register and stores it into a variable, LED2 is turned on.
|
|
|
|
For debug: variables to monitor with debugger watch window:
|
|
- "uhADCxConvertedData": ADC group regular conversion data
|
|
- "uhADCxConvertedData_Voltage_mVolt": ADC conversion data computation to physical values
|
|
|
|
Connection needed:
|
|
Use an external power supply, adjust supply voltage and connect it to analog input pin (cf pin below).
|
|
|
|
Other peripherals used:
|
|
1 GPIO for User Button
|
|
1 GPIO for LED2
|
|
1 GPIO for analog input: PA.04 (Arduino connector CN8 pin A2, Morpho connector CN7 pin 32)
|
|
|
|
@par Directory contents
|
|
|
|
- ADC/ADC_SingleConversion_TriggerSW/Inc/stm32f1xx_it.h Interrupt handlers header file
|
|
- ADC/ADC_SingleConversion_TriggerSW/Inc/main.h Header for main.c module
|
|
- ADC/ADC_SingleConversion_TriggerSW/Inc/stm32_assert.h Template file to include assert_failed function
|
|
- ADC/ADC_SingleConversion_TriggerSW/Src/stm32f1xx_it.c Interrupt handlers
|
|
- ADC/ADC_SingleConversion_TriggerSW/Src/main.c Main program
|
|
- ADC/ADC_SingleConversion_TriggerSW/Src/system_stm32f1xx.c STM32F1xx system source file
|
|
|
|
|
|
@par Hardware and Software environment
|
|
|
|
- This example runs on STM32F103xB devices.
|
|
|
|
- This example has been tested with STM32F103RB-Nucleo board and can be
|
|
easily tailored to any other supported device and development board.
|
|
|
|
|
|
@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>
|
|
*/
|