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Altera_Forum
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19 years ago

Cyclone II programming problems

Hi all -- I've built a few PCBs based on Cyclone II FPGAs. Some of these boards, and especially the last, suffer from an annoying problem: When connecting the FPGA to the JTAG cable, Quart...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

Hello,

it would be interesting, which USB Blaster revision shows the error. With revisison B, a ca. 100 ohms series resistor at TCK (there's already a 10 ohms resistor mounted as R14) could also help in many cases.

Regards,

Frank