Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
7 years ago

JTAG connection issue

Hi all, I have a board that configured the Cyclone 4 E device JTAG signals with 2.5V with 100 ohm series resistor on all signals and TMS, TDI pulled up to 2.5V through 2.2k resistors. I ob...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
7 years ago

I contacted Enclustra support, and they confirmed similar behaviour on TCK and TDO. With 2.5V IO voltage, their auto-detect is successful but programming fails.