Dear,
I have Nucelo board with STM32L152RE. I have just made a simple project with CubeMX:
After reset - blink 5 times by LED and then go to STOP mode. After pushing a button repeat whole proces again and again. Button is on EXTI13.
My problem is that power consumption is about 440 uA and I can not reach better results. (MY nucleo is in original state - no external parts are connected).
My SYSCLK is MSI with 2.097 MHz
Can you help me with power consumption please?
Thank you very much. Jan.
int main(void)
{
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
while (1)
{
for(uint8_t i=0;i<5;i++)
{
LL_GPIO_TogglePin(LD2_GPIO_Port,LD2_Pin);
LL_mDelay(200);
}
/* disable Systick timer */
SysTick->CTRL &=~ SysTick_CTRL_ENABLE_Msk;
/*Set all pins as analog*/
LL_GPIO_InitTypeDef gpio_initstruct = {LL_GPIO_PIN_ALL, LL_GPIO_MODE_ANALOG,
LL_GPIO_SPEED_FREQ_HIGH, LL_GPIO_OUTPUT_PUSHPULL,
LL_GPIO_PULL_NO, LL_GPIO_AF_0};
LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOA |
LL_AHB1_GRP1_PERIPH_GPIOB |
// LL_AHB1_GRP1_PERIPH_GPIOC |
LL_AHB1_GRP1_PERIPH_GPIOD |
LL_AHB1_GRP1_PERIPH_GPIOE |
LL_AHB1_GRP1_PERIPH_GPIOF |
LL_AHB1_GRP1_PERIPH_GPIOG |
LL_AHB1_GRP1_PERIPH_GPIOH);
LL_GPIO_Init(GPIOA, &gpio_initstruct);
LL_GPIO_Init(GPIOB, &gpio_initstruct);
// LL_GPIO_Init(GPIOC, &gpio_initstruct); /* because of EXTI - button to wakeup*/
LL_GPIO_Init(GPIOD, &gpio_initstruct);
LL_GPIO_Init(GPIOE, &gpio_initstruct);
LL_GPIO_Init(GPIOF, &gpio_initstruct);
LL_GPIO_Init(GPIOG, &gpio_initstruct);
LL_GPIO_Init(GPIOH, &gpio_initstruct);
LL_AHB1_GRP1_DisableClock(LL_AHB1_GRP1_PERIPH_GPIOA |
LL_AHB1_GRP1_PERIPH_GPIOB |
// LL_AHB1_GRP1_PERIPH_GPIOC | /* because of EXTI - button to wakeup*/
LL_AHB1_GRP1_PERIPH_GPIOD |
LL_AHB1_GRP1_PERIPH_GPIOE |
LL_AHB1_GRP1_PERIPH_GPIOF |
LL_AHB1_GRP1_PERIPH_GPIOG |
LL_AHB1_GRP1_PERIPH_GPIOH);
/* Enable Power Clock */
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);
LL_PWR_EnableUltraLowPower();
LL_PWR_SetRegulModeLP(LL_PWR_REGU_LPMODES_LOW_POWER);
LL_PWR_SetPowerMode(LL_PWR_MODE_STOP);
LL_LPM_EnableDeepSleep();
__WFI();
//HAL_PWR_EnterSTOPMode(PWR_MAINREGULATOR_ON, PWR_STOPENTRY_WFI);
/*enable Systick after wakeup*/
SysTick->CTRL |= SysTick_CTRL_ENABLE_Msk;
MX_GPIO_Init();
}
}
