Hello,
I've made a project with an Nucleo L011K4 where the L011K4 initializes, and then should go to sleep. It should wake up when an Interrupt is received on A2-pin.
My current project is developed using the CubeMX suite. This generates standard code and some BSP functions, including the SPI connection etc. However, when I check the STM32CubeL0 repo, and when I check the examples for the L011K4, I see a Low-Power Sleep functionality.
When I try to copy the code to my existing project, and import it in my existing project, I get a lot of errors, missing functions and when I finally thought I got it succesfully imported; my firmware stopped working (initialisation was still okay, but it did not detect the interrupt anymore. Is there any easy way to put the L011K4 into sleep? I don't have a deep understanding of the whole HAL and STM32 platform (still learning). Are there any tutorials maybe?
Is there a way to input a sleep or low-power sleep into my project with relative ease, and what would the power consumption?
This is a piece of the code that I used:
while (1)
{
/* Reduce the System clock to below 2 MHz */
SystemClock_Decrease();
/* Suspend Tick increment to prevent wakeup by Systick interrupt. */
/* Otherwise the Systick interrupt will wake up the device within 1ms */
/* (HAL time base). */
HAL_SuspendTick();
HAL_PWR_EnterSLEEPMode(PWR_LOWPOWERREGULATOR_ON, PWR_SLEEPENTRY_WFI);
/* Resume Tick interrupt if disabled prior to Low Power Run mode entry */
HAL_ResumeTick();
/* Read interrupt source registers in polling mode (no int) */
if(MEMSInterrupt) {
lsm6dsox_mlc_out_get(&dev_ctx, mlc_out);
if(mlc_out[0] == 4){
HAL_GPIO_WritePin(D6_GPIO_Port, D6_Pin, GPIO_PIN_SET);
/* Comment this line out if you dont want LD3 to blink */
//HAL_GPIO_WritePin(LD3_GPIO_Port, LD3_Pin, GPIO_PIN_SET);
}else if(mlc_out[0] == 0){
HAL_GPIO_WritePin(D6_GPIO_Port, D6_Pin, GPIO_PIN_RESET);
/* Comment this line out if you dont want LD3 to blink */
//HAL_GPIO_WritePin(LD3_GPIO_Port, LD3_Pin, GPIO_PIN_RESET);
}
MEMSInterrupt = 0;
}
/* USER CODE END WHILE */
}
I copied the SystemClock_Decrease() function from the example.
