MG32F157 Standard Peripherals Firmware Library
PWR_SLEEP example
  ****************** (C) COPYRIGHT 2023 Megawin Technology *******************
  * @file    PWR/PWR_SLEEP/readme.txt 
  * @author  Megawin Application Team
  * @version V0.0.4
  * @date    16-June-2023
  * @brief   Description of the PWR PWR_SLEEP 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 enters the SLEEP mode and wake-up from this mode using external interrupt.

In this example, Main clock is from PLL clock and it is configured at 96MHz. The PLL clock is based on 8MHz HSE. APB1 clock is the 2 frequency division of the Main clock, APB2 clock is from Main clock.

This example initially lights LED2 and turns off LED1; LED1 toggling. By pressing KEY2 to enter SLEEP mode, LED1 stops toggling. Press KEY1 to wake up, the program continues to run, and LED1 toggling.

Directory contents
  • PWR/PWR_SLEEP/PWR_SLEEP.uvprojx MDK5 project file
  • PWR/PWR_SLEEP/PWR_SLEEP.uvoptx MDK5 project options file
  • PWR/PWR_SLEEP/JLinkSettings.ini Jlink settings file
  • PWR/PWR_SLEEP/main.c Main program
Hardware and Software environment
  • Hardware environment
    • HSE crystal is 8MHz
    • The chip pins are connected as follows:
      • PB10 pin is connected to LED1
      • PB11 pin is connected to LED2
      • PA0 pin is connected to KEY1
      • PA1 pin is connected to KEY2
      • PA2 pin is connected to KEY3
How to use it ?

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

  • Open PWR_SLEEP.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