Hello, I added some extra hardware to the Terasic DE1 board by connecting it over the GPIO1 square header. When pressing the power button the board doesn't start up. When I remove my extra hardware it still powers up. However, I noticed that there are some pins not working anymore after trying my extra stuff :( I just drove all pins of GPIO1 high and measured that some pins aren't 3.3V! What's propably wrong with it and what can I do? PLEASE HELP:cry:

Describe what do you have attached and how..

Here are some pics of my setup: http://dl.dropbox.com/u/41173070/pics/100_8114.jpg http://dl.dropbox.com/u/41173070/pics/100_8115.jpg http://dl.dropbox.com/u/41173070/pics/100_8116.jpg I didn't load any design on the fpga when I attached my additional hardware. It was the default configuration which normally doesn't use the GPIO ports.

hm, so what could be possibly broken on the Board?

Probably FPGA is damaged but replacing it is not trivial.. check also onboard regulator

DE1 Board broken??! | Altera Community

15 Replies

Altera_Forum
Honored Contributor
13 years ago
Describe what do you have attached and how..
Altera_Forum
Honored Contributor
13 years ago
Here are some pics of my setup:
http://dl.dropbox.com/u/41173070/pics/100_8114.jpg
http://dl.dropbox.com/u/41173070/pics/100_8115.jpg
http://dl.dropbox.com/u/41173070/pics/100_8116.jpg

I didn't load any design on the fpga when I attached my additional hardware. It was the default configuration which normally doesn't use the GPIO ports.
Altera_Forum
Honored Contributor
13 years ago
perhaps a short?
Altera_Forum
Honored Contributor
13 years ago
hm, so what could be possibly broken on the Board?
Altera_Forum
Honored Contributor
13 years ago
Probably FPGA is damaged but replacing it is not trivial.. check also onboard regulator
Altera_Forum
Honored Contributor
13 years ago
What's this onboard regulator you're talking about?
Altera_Forum
Honored Contributor
13 years ago
When you use 7.5V DC adapter or USB cable voltage is regulted to VCCint of FPGA (ex. 1.2 Volt), check if voltage (VCCio and VCCint) on FPGA is ok
Altera_Forum
Honored Contributor
13 years ago
I don't know where I can find those test points, but there's a 3.3V test point on the pcb which is ok (3.308V).
Altera_Forum
Honored Contributor
13 years ago
I don't have that FPGA unfortunately, only one DE0-Nano..
Altera_Forum
Honored Contributor
13 years ago
ok
Do you know how I can avoid shorts in the future? Maybe there's something I can solder on my experimental pcbs?

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DE1 Board broken??!

15 Replies

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