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christophkeiner9
christophkeiner9
Associate III
October 18, 2019
Question

Double Speed Systick STM32F042

  • October 18, 2019
  • 4 replies
  • 995 views

I configured a Project with STM32CubeMX 5.3 for STM32F042.

Using Nucleo-Board witch Jumpering for MCO from STLink..

The 1ms Timer works fine when using HAL for RCC, but it goes double Speed when changing RCC to LL. I have to limit Codesize for a Bootloader, so i can't use HAL.

Actually i don't know where is the Fault?

This topic has been closed for replies.

4 replies

waclawek.jan
waclawek.jan
Super User
October 18, 2019

Read out and check content of relevant RCC and Systick/timer (whichever applies) registers. Maybe comparing them between the two cases would help to reveal the problem.

JW

christophkeiner9
christophkeiner9Author
Associate III
October 18, 2019

​Thank you for quick reaction, i know how to find wrong Values in the Registers, that's not the case here.

I want to know how i have to set up the Codegenerator.

TDK
TDK
October 18, 2019

So what’s different between the two?

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