Forum Discussion

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

Problem with JTAG

Hi, I use an USB Blaster cable to program an EP3C25U256 an EPCS16 with quartus II web edition 11.1. First, I programmed several times without any problem and after a while, i received an error ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

I would suggest to check the JTAG signals with an oscilloscope. You could have a borderline signal quality that degrades with temperature when the board heats up, for example. Is it a custom board or a development kit?