NUCLEO-L053R8：低功耗待机模式standby/PA0唤醒（例程分享）
# s$ c+ D0 n4 {- i- p+ x& I  l, ~

待机模式唤醒后等同复位

基于ST官方NUCLEO-L053R8开发板

用PA0引脚唤醒（用杜邦线接高电平唤醒）

代码下载：见附件

standby mode without RTC：0.29uA VDD=3.0V

/**
' [+ w. O+ x6 W8 t4 ]/ o! A& n0 F+ r* @brief  Main program
* @param  None
* @retval None
  J2 g1 ^/ ]  z% Y*/
. K. G! w0 z$ L7 s6 f1 Dint main(void)
{  
  /* STM32L0xx HAL library initialization:
       - Configure the Flash prefetch, Flash preread and Buffer caches
       - Systick timer is configured by default as source of time base, but user
             can eventually implement his proper time base source (a general purpose
) w0 E9 h1 R5 e/ E             timer for example or other time source), keeping in mind that Time base
             duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
             handled in milliseconds basis.
% y- p' E" \7 a$ w" _7 l       - Low Level Initialization
" y) |$ Q3 F3 V3 M! a0 |     */
  HAL_Init();

  /* Configure LED2 */
  BSP_LED_Init(LED2);

  /* Configure the system clock to 2 MHz */
  SystemClock_Config();


  /* Check and handle if the system was resumed from Standby mode */
  if(__HAL_PWR_GET_FLAG(PWR_FLAG_SB) != RESET)
  {
    /* Clear Standby flag */
    __HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB);

//如果是唤醒状态，则LED亮3秒
6 t5 M7 ^6 d1 ~; `HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET);        //点亮LED,延时3S，再灭LED
% v: o' N) T( N) B& P( |HAL_Delay(3000);
" d- C; O: [, G4 ^HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);
* l2 O- m4 B+ o8 }  i  {! D  }
+ L9 ~. M1 u" ~2 Felse;
+ R' h- Y1 J9 z* V  
/* Configure the system Power */
  SystemPower_Config();
  
  /* Insert 1 seconds delay */
: S% z9 B# R4 e  HAL_Delay(1000);

7 w- x: R4 ~- r2 W8 u8 l( r    /*The Following Wakeup sequence is highly recommended prior to each Standby mode entry
     mainly  when using more than one wakeup source this is to not miss any wakeup event.
/ o  ~( b$ x0 @. C       - Disable all used wakeup sources,
       - Clear all related wakeup flags,
1 t. [; r. V/ y% k       - Re-enable all used wakeup sources,
& u6 N; a  I/ }3 Z       - Enter the Standby mode.
6 }8 Z7 e; f6 M7 I/ a( |% }/ C     */
. S7 }1 H9 J- D  /*Disable all used wakeup sources: Pin1(PA.0)*/
  HAL_PWR_DisableWakeUpPin(PWR_WAKEUP_PIN1);
  
  /*Clear all related wakeup flags*/
  __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
  
1 ?8 V( M( C8 G0 E+ Y  /*Re-enable all used wakeup sources: Pin1(PA.0)*/
  HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN1);
9 S  C1 [; J( S/ u4 k  
( R2 M$ U& s$ z  /*Enter the Standby mode*/
8 B  N3 Z2 N- R% }! f  HAL_PWR_EnterSTANDBYMode();
: `& A7 E" ^& |' ~+ b  
8 Z) d, N& z( n$ o+ C& w/ @  while (1)
6 _+ G  M/ c1 Z9 F" F# Y- `  {
  }
$ [, r+ k3 o1 n' z( c/ I; n. F! Z$ \}

感谢分享，学习一下

谢楼上支持

谢楼上支持

参考参考

:):):)

学习学习

:D:D:D

:D

参考下。。。。。。。

感谢支持

:D

:(