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Altera_Forum's avatar
Altera_Forum
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14 years ago

A strange JTAG configuration problem

I worked with FPGA for years but this time there's a really interesting problem comes to me: My board can be configured successfully through JTAG only at the very first time after my PC restart...
Altera_Forum's avatar
Altera_Forum
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14 years ago

Sorry, I only have questions at first.

I'm guessing that you're using a USB-Blaster, please confirm.

Can you do any other JTAG operations, for example running `jtagconfig --debug` in a command window? If not then what error do you get?

Is the jtagserver process running, if so then how much CPU does it use? Does killing it make any difference?