MG32L003 Standard Peripherals Firmware Library
TIM1_PWM_Input example
  ****************** (C) COPYRIGHT 2023 megawin Technology *******************
  * @file    TIM/TIM1_PWM_Input/readme.txt 
  * @author  megawin Application Team
  * @version V0.0.5
  * @date    13-August-2024
  * @brief   Description of the GPIO TIM1_PWM_Input example.
  ******************************************************************************
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  * TIME. AS A RESULT, MEGAWIN SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
  * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM
  * THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  ******************************************************************************
Example Description

This example describes how to measure the frequency and duty cycle of an external signal using TIM1.

In this example, Main clock is configured at 24MHz.

TIM1 uses PD4 pins for external signal frequency and duty cycle measurement.
TIM2 outputs four PWM waves with the same frequency and different duty ratios for TIM1 measurement.

  • TIM2_CH1 PB5 10kHz 35%
  • TIM2_CH2 PD6 10kHz 70%
  • TIM2_CH3 PA3 10kHz 28%
  • TIM2_CH4 PC4 10kHz 95%
Directory contents
  • TIM/TIM1_PWM_Input/TIM1_PWM_Input.uvprojx MDK5 project file
  • TIM/TIM1_PWM_Input/TIM1_PWM_Input.uvoptx MDK5 project options file
  • TIM/TIM1_PWM_Input/JLinkSettings.ini link settings file
  • TIM/TIM1_PWM_Input/main.c Main program
Hardware and Software environment
  • Hardware environment
    • The chip pins are connected as follows:
      • TIM1_CH1 PD4 is connect to external corrugated pins(PB5, PD6, PA3, PC4)
How to use it ?

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

  • Open TIM1_PWM_Input.uvprojx from this example folder by Keil MDK5
  • Rebuild all files and load your image into target memory
  • Run the example

    © COPYRIGHT 2023 megawin Technology