Hi guys!
A have a problem with power consumption, when I try to put the microcontroller in low power sleep, the current consumption is around 8.5mA, when I expect around 20uA.
I'm using a custom board, but only a single LED is connected, capacitors and a 32kHz (P/N recomended by ST).
I tested in Sleep and Stop mode (with low power regulator), changed the clock to MSI in 100kHz, without the ST-Link connected, Serial Wire Debug deactivated, and nothing :(
Only in standby mode i get 2uA of current. Please a need hekp around this situation :)
Below I will post a print of clock configutarion and a snap of code, peripherals enable os only de TIM7 for the SysTick. (I don't know why, if I use the default Systick, i get hardfault when try to enter in sleep mode).
Code to reconfigure the Clock:
void configClock_MSI120k(){
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
RCC_OscInitStruct.MSIState = RCC_MSI_ON;
RCC_OscInitStruct.MSICalibrationValue = 0;
RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_2;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Configure the main internal regulator output voltage
*/
}Main code
/* Initialize all configured peripherals */
MX_GPIO_Init();
/* USER CODE BEGIN 2 */
SET_LEDBAT(GPIO_PIN_RESET);
HAL_Delay(250);
/*
* Enable RCC Power Clock
*/
__HAL_RCC_PWR_CLK_ENABLE();
/*
* Enable Flash Power Down
*/
FLASH->ACR |= FLASH_ACR_SLEEP_PD;
HAL_SuspendTick();
configClock_MSI120k();
/*
* Clear flags
*/
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB);
/*
* Turnoff red led
*/
SET_LEDBAT(GPIO_PIN_SET);
HAL_PWR_EnterSLEEPMode(PWR_LOWPOWERREGULATOR_ON, PWR_SLEEPENTRY_WFI);
//HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
//HAL_PWR_EnterSTANDBYMode();
SET_LEDBAT(GPIO_PIN_RESET);
Thank guys.
