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Altera_Forum's avatar
Altera_Forum
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12 years ago

HPS clock peripherals, specifically CAN

How do I determine the clock frequency of the HPS peripherals and edit them? In particular the CAN controller clock, can_clk. And I guess also, l4_sp_clk, since the CAN controller uses both these clo...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Sorry I forgot the name is BSP editor now. It's been a while since I looked at CAN but if that interface protocol operates at fixed frequencies which I suspect it does then that might be why that frequency is not editable (no need to ask if it can't change). Is the L4 SP clock frequency editable? If not then I suspect it is set to the maximum possible frequency by default. If you do edit the include files that are generated just remember that if you run BSP editor again your hand edits will be wiped out.

As you can probably see I've never actually used the software tools before :)