Variations on a theme. Has anyone been able to program one of the older Orangutans (the ones based on the ATMega8) with the new USB AVRISP mkII programmer? I’m trying to re-purpose an Orangutan at work that I last used over a year ago, but I had to get one of the new programmers.
First off, I had to swap out the Orangutan’s reset pin pull-up resistor (1k) for a 10k just to pass the mkII’s reset pin test. Does anyone have a copy of the original Orangutan quick-start PDF? The current one shows a 10k reset line pull-up resistor already.
Anyway, now the mkII will light up green and happy when I connect it to the Orangutan, but when I try to program it (at any speed) I get a variety of error messages, either that the connector is backwards (it’s not) or that there is a short between MISO and SCK, or MISO and VCC. Unplugging the programmer and checking the pins with a volt-meter these shorts are real, but only happen after I try to program the Mega8. When I cycle power they disappear. What’s going on?!? These errors cycle randomly when I try to program without changing any settings. The mkII user guide specifically says it supports the Mega8!
I know my mkII works, because I have been able to program an ATMega168 Baby Orangutan just fine. I was able to borrow a serial AVRISP, and I can still program my Mega8 Orangutan with it, but the Mega8-O and the mkII just don’t seem to want to work together. Any thoughts?