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Altera_Forum
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14 years ago

USB Blaster VCC

Hello :) I'd like a quick confirmation about the USB Blaster. I'm implementing my design on a PCB, and I've to make a connector to programm my FPGA with the USB Blaster. So I decided to pr...
Altera_Forum's avatar
Altera_Forum
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14 years ago

I use a very similar design, with 74LVCs powered at 3.3V (because this is the Vccio of my bank# 1), and 33 Ohm resistors in series. I have other components in the JTAG chain, and the possibility to move resistors to exclude them from the chain and have only the FPGA (yes, I don't trust the Quartus programmer that much :D ).

You must be sure that the buffers you use are fast enough for the Jtag signals.