Is there any bug in code HAL_Delay() not works?

Forum|Forum|4 years ago
January 5, 2022
5 replies
1264 views

HAL_Delay() function gives infinite delay.

i am toggle led using delay.

below my simple project files.

f0-delay.rar

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Tesla DeLorean

Guru

It needs the SysTick or other TIM source to interrupt and count.

It therefore has some interrupt and priority issues if miss used under interrupt context or callbacks.

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TDK

You can inspect the source for HAL_Delay and verify it's doing the right thing. It doesn't need to be treated as a black box.

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parth kothiyaAuthor

Associate III

as you said i removed HAL_Delay() function and i monitor variable uwTick maimum value of variable is 406 then variable is automatically set to 0 you can see in below image.

that's the problem but why it get automatically reset to 0

so i check reset pins of MCU automatically pulled low continuous time interval so my MCU get RESET i don't know why its automatically pulled low?

TDK

I didn't say to remove HAL_Delay.

Monitor RCC_CSR register at startup to determine the cause of reset.

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parth kothiyaAuthor

Associate III

I read rcc_csr before halinit function

It shows internal watchdog timer reset bit set

I haven't set any watchdog timer in my program.

i preform full chip erase and then i read RCC_CSR it gives same value.

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