Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
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

thank you for your reply.

But that is complete opposite of our previous problems.

With us the fpga fails completely and not the usb-blaster.

One of the preventive action we are taking is to leave the usb blaster attached to the 10-pin jtag header. This way avoiding any static charges forming on the jtag header while handling it.

So far neither fpga or blaster gave any problems. Although normally we switch of the board(fpga) before unplugging the usb cable.