Posted on July 06, 2018 at 09:56
Hi guys,
I have a nucleo board of a STM32L4 and I'm trying to test the Power Consumption in the different Low Power Modes.
I read the examplePWR_EnterStopMode and viewed a few discussion in the community forum, but I don't understand because the power consumption doesn't decrease in STOP Mode.
I made a very simplesetupusing the STMCube: ADC,RTC, and other modules are disabled.
I've used an ammeter in series on the JP6(Idd) to measure the current.
Without any change (compile and download the code generated by STMCube) the current measured is about 2.3 mA.
If I insert this code before the main while loop:
// Off the LED
LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED_Pin);
// Enable the Cortex Sleep Deep Bit High
LL_LPM_EnableDeepSleep();
// Set Power Mode (STOP 2 Mode)
LL_PWR_SetPowerMode(LL_PWR_MODE_STOP2);
// Active the Interrupt Wakeup
__WFI();
// ON the LED
LL_GPIO_SetOutputPin(LED_GPIO_Port, LED_Pin);�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?
The MCU 'seems' to go in STOP Mode (the LED is not activated), but the current measured is always about 2 mA.
I tried to disable the clock on the GPIOx ports, but the current measured is always about 2 mA.
What am I doing wrong ?
PS: I've attached the STMCube file.
#stm32l4-low-power-stop2 #stm32l4 #stm32l4-low-power-mode-stop #low-power-mode
