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Altera_Forum
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12 years ago

JTAG programming successful but no output on hardware

I am using a Cyclone III EP3C10F256 device. When I connect the USB Blaster and run the JTAG programmer in Quartus, the programming is done with no error. The code is just written to tie a few outputs...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Thank you Dave.

This is a board I've made myself.

I checked the CONF_DONE output. During programming it goes low, and after programming it goes high.

The pin planner looks right. Except I'm using a 3.3V supply for all the VCCIO banks and in the pin planner I see the banks which have not been used have defaults set to 2.5V and have not been changed (I don't know how to change them without associating an output pin to the bank). I tried changing the text file and setting all the VCCIO's to 3.3V manually but I'm not sure if it actually applied the changes in the next programming. I'm not sure if this could be a reason for my problem.