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Altera_Forum
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17 years ago

Cyclone III problem with USB blaster JTAG communication

Hi all I've spent the last week debugging the jtag connection between the fpga and the usb blaster.:mad: I finally found something that is wrong.:) In JTAG there are 4 signals.. The fi...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

We have only one other usb blaster available.

And it is from terassic - it claim to be 100% compatible.

But with it I see absolutely nothing. I think its completely broken.

I've checked the voltage on pin 4 on the pcb and its constant at 2.5Volts.

Have not yet checked it inside the usb blaster.