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Altera_Forum's avatar
Altera_Forum
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9 years ago

Check FPGA / bridges before accessing them

I want to access the switches on the tersIC DE0-Naoo-SoC board from Linux. I load the appropriate FPGA and access the LW bridge (with a c program). Everything works fine. But if, due to eg. mis...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

Nope. The FPGA is configured sucessfully. But with the wrong rbf.

The main problem is if some setup is wrong the FPGA does not have a register at the address I access.

I could figure out from my software if I get a valid result. But the whole systems hangs after an access.

So I am looking for a way to check prior to accessing the address.

My customers want to build a drives control system with this and they don't like that some Linux process can hang up the whole system by just accessing a wrong address.