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New Contributorconf_done LED blinks once
Hi,
I'm a FPGA newbie with a DE10-nano board and have a problem with it.
I use the USB blaster.
When I supply power on my board,
3.3V Power LED, conf_done LED go HIGH, and USER LED blinks.
At first, LED 0:7 also blink sequentially.
It's a simple test code and I think my code doesn't have any problem.
The four input pins are assigned to SW 0:3, and the eight output pins are assigned to LED 0:7.
So if I turn up each switch, two leds go HIGH.
Like this.
It works well, but after several seconds (around 18s ~ 20s) conf_done LED (LED10) goes LOW and quickly goes HIGH. (This takes less than 1 second.) So the loaded data is gone. Everything got reset. So led 0:7 blink sequentially again.
I did nothing. The power goes to the board constantly.
What is the problem? What should I do?
Waiting your help.
Thank you.
Do you have an SD card installed? If so, the HPS is probably booting and then reconfiguring the FPGA back to its default design.
5 Replies
sstrellSuper Contributor
Do you have an SD card installed? If so, the HPS is probably booting and then reconfiguring the FPGA back to its default design.
jelly(I didn't intend to click the accept button! My problem isn't solved.)
Yes I already have inserted the SD card in my board. ;(
Sometimes the loaded data is gone and sometimes it remains.
What is the problem.. ~~
- sstrell
Yes, so I'm saying remove the SD card so the HPS won't boot.
- jelly
Wow!
Now it works thx !!!
BXiaOccasional Contributor
What Quartus are you using to compile the code? What kind of .sof file did it generate, like xxx_time_limited.sof?
