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Altera_Forum
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13 years ago

In-System Programming with Cyclone III

Hello, I have a custom board that uses the Cyclone III (EP3C40 - 240 pin) FPGA. The board has two headers for connecting to the ByteBlaster II. One of the headers is used for JTAG configuration...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Interesting.. There is no series termination or 0-ohm resistor but I almost wonder if perhaps I botched my soldering job of the EPCS device. I'll also take a look at another test point for the signal, like the pin of the FPGA (pin 23 for DCLK on this one) just to check if there is a more clear signal at the transmission side. I'd think that the reflection will still be apparent at this end since the trace is pretty short, but I'll have a look there anyways.

I guess a couple of things to post back with once I get back home to have a look. Thanks again for suggestions.