Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Urgent: cant program Cyclone III design

I have an FPGA based project that I have recently completed on my DE1 board, and as such I'm moving onto developing the final board. As an intermediate step I have developed a small breakout board fo...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

i have active serial configuration in my design witn EP3C16 . some differences that i can find in your design are

1. Pull up on TDO missing

2.nCE should be directly grounded unless there is another device in the chain.

3.I have 33ohm series resistor in place of your 1k on DATA0.

I actually dont see anything wrong but Cyclone III has very erratic nature in my case..so i guess..small changes in this case affect a lot.