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MDeva.1
Associate III
November 19, 2021
Question

How to change Timebase source of Nucleo-h745ziq board

  • November 19, 2021
  • 4 replies
  • 3258 views

Hello,

I am working on Nucleo-h745ziq board. I am working on Azure Rtos Usbx .I have to change the setting of Timebase source but in Nucleo-h745ziq board is default setting how I can change it?

0693W00000GY9VGQA1.png

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4 replies

TDK
Super User
November 19, 2021

Click the down arrow on the right side of the Timebase Source selection box and choose a new one. You will need to enable the corresponding timer first.

If that doesn't work, attach your IOC file.

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MDeva.1
MDeva.1Author
Associate III
November 19, 2021

I activated the TIM6 in Cortex M7.And try to select the Timebase Source as TIM6 but all option are disable,only systick is enabled.0693W00000GYDaxQAH.jpg

TDK
Super User
November 19, 2021
Please reread my first post if you still need help.
"If you feel a post has answered your question, please click ""Accept as Solution""."
TDK
Super User
November 19, 2021

Go into TIM6 and assign the timer to the CM7 core.

0693W00000GYEQUQA5.png 

Go back into SYS and select TIM6 as the time base.

0693W00000GYEQjQAP.png

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MDeva.1
MDeva.1Author
Associate III
November 19, 2021

I follow the procedure that you told me but it not allows me to change the Timebase source.0693W00000GYEqNQAX.png0693W00000GYEq8QAH.png

Muhammed Güler
Senior III
November 19, 2021

you need to choose which equipment will be used by which core. In your scenario, you need to choose from the timer configurations that timer6 will work with Cortex-M7. If you activate the timer, you cannot select the timebase source.

MDeva.1
MDeva.1Author
Associate III
November 19, 2021

I am working on Azure Rtos.I am enable the TIM6 for Particular cortex M7 and after that I try to select the Timebase Source as TIm6 but that option is not enable if I click on TIM6 after that it select the sysytick by default.

Haithem Rahmani
ST Employee
December 15, 2021

0693W00000Hoja7QAB.png 

above the screenshot taken from the STM32CubeIDE 1.8.0, it is working fine the TIM6 is used as timebase for CM7

regards

Haithem.