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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

Hey James,

Here's a design with lots of JTAG buffers/tricks in it, feel free to ask questions;

http://www.ovro.caltech.edu/~dwh/carma_board/gda06rb004_carma_v0.87_dec03.pdf

Page 7 has a high-level overview. Look on the front page for the other locations of JTAG stuff, eg., page 44, 77, 78, 79. Some of the FPGA outputs are 2.5V, and they're run into 3.3V buffers, mainly so that the LEDs are on bright enough. The TinyLogic buffers are cheap and convenient to place and route on a PCB.

Cheers,

Dave