Just thought there might be a few ppl here interested in the plans I've just finished writing up for an AVR JTAG programmer.
I've been using one I built from the bootice plans for a couple of years now with a usb adaptor lead and kept having connection issues and blowing up usb ports when using my usb based oscilloscope as well.
So I designed up a new one that has a good solid usb chip onboard and completey isolates the programmer (and computer) from the target mico. I've been using my new one for a couple of months now and it works great.
While I've used the bootice bootloader in the past, I decided to use the evertool one for this, as it allows easy upgrading of the firmware. From the
The bootloader is also copyrighted. Free for non-commercial use. For commercial use please contact me by e-mail.
It's also free to build yourself an Evertool for your work and just use the tool for programming/debugging.
I reckon other people might as well benefit from my design, and as I found a lot of difficulty finding decent plans when I first built my jtag programmers I thought I might as well write some up myself.
And if anyone has any improvements in mind, I'm quite open.