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Altera_Forum
Honored Contributor
Honored ContributorDE1 Board broken??!
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:15 Replies
Altera_ForumDescribe what do you have attached and how..
- Altera_Forum
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
perhaps a short?
- Altera_Forum
hm, so what could be possibly broken on the Board?
- Altera_Forum
Probably FPGA is damaged but replacing it is not trivial.. check also onboard regulator
- Altera_Forum
What's this onboard regulator you're talking about?
- Altera_Forum
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
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
I don't have that FPGA unfortunately, only one DE0-Nano..
- Altera_Forum
ok
Do you know how I can avoid shorts in the future? Maybe there's something I can solder on my experimental pcbs?
