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Altera_Forum
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16 years ago

Cyclone III not configuring

I have a 144 pin cyclone 3 that I'm trying to get working in a board design I've done. It is not configuring. I can see the TCK on the oscilloscope but no TDO data comes back from the FPGA. T...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Are you detecting the Cyclone when you try the Auto Detect on quartus programmer?

Once time i had a problem with jtag configuration and i solved the problem with caps ~ 100pF on TCK, TDO and TDI ( between these and GND).