How to change defaults values of hardware registers?

Hi.
I would like to change default FCLK and Ethernet clock source.
I need to set FCLK to 125 MHz and Ethernet clock source to EMIO.

What is the right way to do it? How can I check my new setting after Zedboard boots up?

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0 Former Member over 11 years ago

If you follow the steps in the note you referred to, the tools will take care of setting up the GEM0 register values for you in the generated ps7_init.c/ps7_init.tcl files. Unless you need to dynamically change the Ethernet clock source after Zynq device has booted there is no need to directly write these registers.

-Gary
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0 Former Member over 11 years ago

If you follow the steps in the note you referred to, the tools will take care of setting up the GEM0 register values for you in the generated ps7_init.c/ps7_init.tcl files. Unless you need to dynamically change the Ethernet clock source after Zynq device has booted there is no need to directly write these registers.

-Gary
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