NUCLEO-H533RE Development Board Review 03 (Low Power Mode Application)

qzc0927

NUCLEO-H533RE Development Board Review 03 (Low Power Mode Application) [Copy link]

<div class='showpostmsg'># Overview of low power consumption mode:  Let’s first explain the following current measurement interfaces:  Test current interface:  DD measurement refers to measuring the supply current. ### 3.1: Sleep mode When an interrupt/event occurs, all peripherals continue to work and can wake up the CPU. We use the onboard buttons to achieve wake-up.  Set PC13 to external interrupt mode.  Currently there are the following tasks: 1: RTC clock task; 2: Timer LED light flashing task 3: Write code for serial port transceiver tasks: Use a state machine to switch the system running state```C typedef enum { STATE_IDLE, /**< idle state*/ STATE_RUN, /**< running state*/ STATE_SLEEP, /**< sleep state */ STATE_STOP, /**< stop mode*/ STATE_STANDBY, /**< standby mode*/ }Run_State; ``` Switch the running mode according to the state: ``` void task4_hook(void) { RTC_TimeShow(aShowTime); / /Execute RTC task setTimeCountData(COUNT_ADD); //Time counting GlobalData retrievedData = getData(); //Get the count value printf("retrievedData.timeCount=%d\r\n",retrievedData.timeCount); if(retrievedData.timeCount ==10) { setSysRunState(STATE_SLEEP); //Enter sleep mode test // setSysRunState(STATE_STOP); //Enter stop mode test // setSysRunState(STATE_STANDBY); //Enter standby mode test HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET) ; //Turn off the LED light} // DEBUG_LOG("1s\r\n"); } ``` ``` // State transition function void transitionToNextState(void) { GlobalData retrievedData = getData(); //Get information switch (retrievedData.sysRunState) { case STATE_IDLE: HAL_ResumeTick(); setTimeCountData(COUNT_ZERO); //Clear the count to 0 setSysRunState(STATE_RUN); break; case STATE_RUN: //TODO break; case STATE_SLEEP: /*Preparations before entering sleep mode* /printf("cpu run into sleep....rn"); HAL_SuspendTick(); /*Suspend Tick increment to prevent Systick interrupt wake-up. Otherwise the Systick interrupt will wake up the device within 1ms*/ HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI); break; case STATE_STOP: /*Preparations before entering stop mode*/ printf("cpu run into stop....rn"); HAL_SuspendTick( ); /*Pause Tick increment to prevent Systick interrupt wake-up. Otherwise the Systick interrupt will wake up the device within 1ms*/ HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON,PWR_STOPENTRY_WFI); break; case STATE_STANDBY: /*Preparation before entering standby mode*/ printf("cpu run into standby....rn"); HAL_SuspendTick( ); /*Pause Tick increment to prevent Systick interrupt wake-up. Otherwise, Systick interrupt will wake up the device within 1ms */ HAL_PWR_EnterSTANDBYMode(); break; default: break; } } ``` Use external interrupts to realize wake-up in each mode``` void EXTI13_IRQHandler(void) { /* USER CODE BEGIN EXTI13_IRQn 0 */ /* USER CODE END EXTI13_IRQn 0 */ HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_13); /* USER CODE BEGIN EXTI13_IRQn 1 */ /* USER CODE END EXTI13_IRQn 1 */ } ```` Then use a multimeter to connect both ends of JP2 to check the system operation current. Operating current when the system is running:  Power consumption is about 30ma; Current entering sleep mode:  Power consumption is about 15ma; Power consumption in stop mode:  Power consumption is about 0.34ma;  The power consumption is about 3.7ua; The specific video is as follows: https://www.bilibili.com/video/BV1jE4m1R7ay/?spm_id_from=333.999.0.0&vd_source=d89384d7551b55d1559dd2bf89310863 In the current test state, buttons are used to wake up different low-power modes. The overall power consumption test is higher than the official one, and it will be optimized according to specific low-power requirements in the future. </div><script> var loginstr = '<div class="locked">To view all the contents of the post, please <a href="/bbs/member.php?mod=logging&action=login" style="color:#e60000" class="loginf">log in</a> or <a href="/bbs/member.php?mod=register_eeworld.php&action=wechat" style="color:#e60000" target="_blank">register</a></div>'; if(parseInt(discuz_uid)==0){ } </script><script type="text/javascript">(function(d,c){var a=d.createElement("script"),m=d.getElementsByTagName("script")[0],eewurl="//counter.eeworld.com.cn/pv/count/";a.src=eewurl+c;m.parentNode.insertBefore(a,m)})(document,523)</script>

freebsder

Thanks for sharing, looking forward to the follow-up!

怀揣少年梦

I tested it and it didn't seem to be that high. I'll see where I have a problem.

qzc0927

Posted by A Teenager's Dream on 2024-7-15 21:49 I didn't test it that high. Let me see where I have a problem

What I tested is that in low power mode, sleep, stop and standby mode, they are all woken up by buttons, and tasks and timers are added. The power consumption is higher than yours, and it needs to be optimized later.

qzc0927

freebsder posted on 2024-7-15 18:46 Thank you for sharing, looking forward to the follow-up!

Let's learn and communicate together

怀揣少年梦

qzc0927 posted on 2024-7-16 14:50 What I tested is that in low power mode, sleep, stop and standby mode, they are all woken up by buttons, and tasks and timers are added. The power consumption is higher than yours...

Ok, I see