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It worked!
Thank you very much MightyOhm.

I can read and write the bits successfully.
It actually showed me the bits I had wrongfully set the ATmega to.

Cheers,
Nicholas

I'm in no hurry. Turns out I only have a single ATmega48 with bad bits. Well actually three, but two others are simply configured for 16 Mhz but only rated for 10. I just have to set them back to default. It's funny that the Arduino boards differ so much. They #IF DEF the heck out of the Arduino bas...

That is great, you were able to reproduce what I was seeing.

I don't know why I don't have an UNO.
This is the only use i'll be getting out of my Arduino Mega 1280.


Thanks for the update.

That is correct. I am using an AT Tiny Programmer. The AVR Programmer by SparkFun. It simply fails to read the device as if there is no chip. It happened after I tried to set the fuses to an external oscillator setting. I usually set the LFUSE to FF and that works but I wanted to do it the right way...

Update: the 48P is still unreadable by with ISP. I tested an ATmega168 10PU. I can read the fuse bits with the ISP. The HV Rescue reads the bits as 7 still. I did not set the bits with the HV but I checked them again with the ISP and they were the same as before. The voltage at the test point read 1...

Thanks for the speedy reply and updated sketch. I can go through all functions but it reads my fuses as 7 and 7. After burn, they both where read as 7. Just for more info. I am trying to recover an ATmega48P 20PU. I tried a working ATmega48P 10PU but it read 7s as well. I will try to read them on wi...

I just purchased an HV Rescue 2.1 board with all components. I have an ATmega 1280 which seems to have the same pinout as the Unos and such. Everything seems to be soldered fine but the Red and Green Leds stay on all the time. I can navigate the menu but when i press GO, nothing happens. I am concer...