Forum Discussion

Ivor's avatar
Ivor
Icon for New Contributor rankNew Contributor
4 years ago

MAX10 .sof and .pof programming problem - device remains tristate

First time using MAX10. I have three LEDs connected, VHDL driving one low, one high and toggle third one. I do compile, .sof is generated. Run programmer and autodetect. Device is selected c...
Ivor's avatar
Ivor
Icon for New Contributor rankNew Contributor
4 years ago

Actually, I have just sorted out the problem.

Both the nStatus and CONF_DONE lines were just going to GND via resistor and LED. So I pulled them up to Vcc via 10k and then after SOF programming, the device came out of tristate and the POF programming then also worked.

Thanks for the reponse though.

My next issue is that the elf download fails due to not being able to pause or reset NIOS. Is there a simple example design to use to check that it is not some other hardware problem?