HAL_Delay

[DYann.1]

Hello,

I tried the Hal_Delay function but it's not work Do you have any idea for this error ?

And my code still waits at this loop :

Thank you for your helps

Regards

[DYann.1]

Hi,

In this function is something missing ?

there is no IRQ inside this function ?

[LCE]

Have you configured / activated the SysTick?

It looks like you're using CubeMX, there's a a setting somewhere you have to click, quite on top under system or so.

In source activation should be done in the baic MCU config.

[LCE]

Or just add this:

	/* use systick as time base source and configure 1ms tick (default clock after Reset is HSI) */
	HAL_InitTick(TICK_INT_PRIORITY);   // TICK_INT_PRIORITY = 0
	HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
	HAL_NVIC_EnableIRQ(SysTick_IRQn);
 

[DYann.1]

Hello,

I'm not familar with the code (I'm a new user), I prefer to go through Cube IDE. I suppose it's this tab I need to activate ?

And I select SysTick probably ?

no parameters to be configured ? What does that mean ? I specify that I have an evaluation board STM32L552E-EV.

[Tesla DeLorean]

Technically it is classified as a System Handler not an IRQ, and it also doesn't use the HALs callback abstraction.

The MCU doesn't start it automatically, and it needs a clock cycle count that relates the processor's clocking speed with the desired interrupt rate. This is often 1 KHz, but doesn't have to be.

I​t is implemented as a 24-bit down counter.

[DYann.1]

Hello Tesla,

You say : 'and it needs a clock cycle count that relates the processor's clocking speed with the desired interrupt rate'.

Can you give me more detail How I can do it ? Thank you

[Karl Yamashita]

Upload your IOC file so we can check if you configured it correctly.

[DYann.1]

Hello,

Sorry I don't know how to upload .IOC file but I can give you the screenshot.

[DYann.1]

I try somthing and I don't know if it's work correctely. Please see in this attached.