STM32F0xx Standard Peripherals Firmware Library: TIM ADC Trigger Example

  ******************** (C) COPYRIGHT 2014 STMicroelectronics *******************
  * @file    TIM/TIM_ADCTrigger/readme.txt 
  * @author  MCD Application Team
  * @version V1.4.0
  * @date    24-July-2014
  * @brief   TIM ADC Trigger Example Description
  ******************************************************************************
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  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
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  * Unless required by applicable law or agreed to in writing, software 
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
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  ******************************************************************************
   

Example Description

This example describes how to configure the TIM to trigger the ADC conversion.

In this example the TIM1 is configured in PWM mode, the TIM1 CC4 event is used to trigger the ADC.

The ADC is configured to convert continuously the ADC_Channel_11 (connected to potentiometer RV3 on the STM320518-EVAL Board) or ADC_Channel_10 (connected to potentiometer RV3 on the STM32072B-EVAL Board). Each time the TIM1 CC4 event occurs, the ADC convert the variable voltage.

User can display continuously the ADC_Channel_11 or ADC_Channel_10 voltage on the EVAL Board LCD

Directory contents

• TIM/TIM_ADCTrigger/stm32f0xx_conf.h Library Configuration file
• TIM/TIM_ADCTrigger/stm32f0xx_it.c Interrupt handlers
• TIM/TIM_ADCTrigger/stm32f0xx_it.h Interrupt handlers header file
• TIM/TIM_ADCTrigger/main.c Main program
• TIM/TIM_ADCTrigger/main.h Header for main.c module
• TIM/TIM_ADCTrigger/system_stm32f0xx.c STM32F0xx system source file

Note:

The "system_stm32f0xx.c" is generated by an automatic clock configuration tool and can be easily customized to meet user application requirements. To select different clock setup, use the "STM32F0xx_Clock_Configuration_VX.Y.Z.xls" provided with the AN4055 package available on ST Microcontrollers

Hardware and Software environment

• This example runs on STM32F0xx devices.

• This example has been tested with STMicroelectronics STM320518-EVAL and STM32072B-EVAL including respectively STM32F051R8T6 and STM32F072VBT6 devices and can be easily tailored to any other supported device and development board

• STM320518-EVAL Set-up
  • Use the potentiometer RV3 to change the ADC_Channel_11 voltage.

• STM32072B-EVAL Set-up
  • Use the potentiometer RV3 to change the ADC_Channel_10 voltage.

How to use it ?

In order to make the program work, you must do the following :

• Copy all source files from this example folder to the template folder under Project
• Open your preferred toolchain
• If the used device is STM32F051R8T6 choose STM32F051 project
  • Add the following files to the project source list
    • Utilities\STM32_EVAL\STM320518_EVAL\stm320518_eval.c
    • Utilities\STM32_EVAL\STM320518_EVAL\stm320518_eval_lcd.c
• If the used device is STM32F072VBT6 choose STM32F072 project
  • Add the following files to the project source list
    • Utilities\STM32_EVAL\STM32072B_EVAL\stm32072b_eval.c
    • Utilities\STM32_EVAL\STM32072B_EVAL\stm32072b_eval_lcd.c
• Rebuild all files and load your image into target memory
• Run the example

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