I am designing the JTAG for a Altera Cyclone 3 (EP3C5E144C8N). I was only aiming at normal JTAG, and do not need Active Serial. I have attached the schematic and board in the *.zip file (http://www.mediafire.com/?0gt55eyperbm385)
Or just a snapshot here:
Would you please having a look for me?
I have some doubts:
- Should I connect nCE of JTAG directly in to nCE of the FPGA, or nCE from FPGA is connected to ground?
- About the clock: I see that there are 16 clocks (clk0 t clk15). To which clock I should connect the output from oscillator to?
- In my board, I only use 3.3V (the label VCC means 3.3V). Is that ok?
- By the way, would you please showing me how to add a flashing LED to indicate the JTAG is working?