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Altera_Forum's avatar
Altera_Forum
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15 years ago

problem with cyclone III and jtag

I would like to put a very serious discussion about using jtag with cyclone III. has cyclone3 less electrical tolerance compared to other FPGA's?????? . we are building a custom board. and t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Sorry for the late response. I was busy in debugging the issue, but of no success. we are using 3.3v . but we have not used any clamping diode coz there is no such mention in the schematic diagram given in altera configuration handbook.

Plz let us know is putting the clamping diode neccessary. ??? What other things do i need to check. I am using epc3120fc8n.