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Altera_Forum's avatar
Altera_Forum
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11 years ago

epcs does not configure cyclone V

Hello, my ecps on my board does not configure my fpga. I create a jic file and programm the epcs.This works ok. But my programm does not boot. With the nios2flash programmer i can convert sof2...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

That suggests to me the MSEL pins are not set correctly. If you're not seeing any activity DCLK and nCS remains high I'd suggest that's the place to start. If you think they're correct check the board's assembled properly and that the pins are soldered down.

Check you're not holding nCONFIG low and that nCE is tied or connected directly to GND. Check all power pins are powered.

Once the POR circuit is happy and the POR delay has completed configuration should begin. I suspect the POR circuit is happy since you're able to program the EPCS. If it wasn't you wouldn't be able to access the FPGA via JTAG either.

Given you can program the EPCS it should be something pretty simple.

Cheers,

Alex