Search found 3 matches

by hlawka_667
Wed Aug 19, 2015 2:32 pm
Forum: HV Rescue Shield
Topic: Cannot program EFUSE or test Flash
Replies: 3
Views: 14899

Re: Cannot program EFUSE or test Flash

I’m using the alternative “Plus” code version that’s on the web site, as well as your standard sketch. The test point shows +12.4V. Neither sketch allows the 328P’s EFUSE high nybble or bit 3 to be programmed, or allows the Flash to be tested or programmed.

Thanks.
by hlawka_667
Sun Aug 16, 2015 4:19 pm
Forum: HV Rescue Shield
Topic: Cannot program EFUSE or test Flash
Replies: 3
Views: 14899

Cannot program EFUSE or test Flash

Partially working HV Rescue Shield 2:
1) Test EEPROM succeeds
2) LFUSE and HFUSE are correctly programmed
3) Cannot program EFUSE
4) Cannot successfully test Flash

What might explain these symptoms?

Thanks.
by hlawka_667
Sat Aug 15, 2015 2:17 pm
Forum: HV Rescue Shield
Topic: Looking for feedback...
Replies: 26
Views: 202033

Re: Looking for feedback...

Excellent project - simple to build. But green Ready LED failed to illuminate when first tried. Red LED lights up, but nothing is written to the part (ATmega328P). Tried both original and "Plus" sketch versions. I'm going to try some other Arduinos and 328Ps and see if that affects matters. The boar...