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Altera_Forum
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20 years ago

Debugging problem with USB-Blaster

I am having a problem while trying to debug Nios applications using a USB-Blaster. On my own laptop everything works fine. I have bought a new laptop for another engineer that I recently recruited to...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

We also had tremendous problems with USB-Blaster and our CycloneII/StratixII

designs. Signal integrity from the USB-Blaster( Rev.B, tried a couple of 'em) was

p*ss poor. We ultimately added a 74HC14 as buffer for the signals coming

from the Blaster and now it works flawlessly with a total of about 30cm JTAG cabling.

Getting rid of the ALTERA flex-print like cable might also do the trick.

However all the Blasters worked with the ALTERA 2C35 Demoboard.

Cheers, Roger