I can't seem to get a connection between my computer and juicebox through jtag. jtag fails to detect it, and after messing with things I probably shouldn't have, eventually my juicebox went into some sort of reset loop. Flashing at a rate of half a second, you know? Even after unplugging from my computer. Shutting it down and removing the batteries for about a minute or so put it back to normal.
I'm pretty sure I wired things up correctly with the cheaptag found at http://warmcat.com/milksop/cheaptag.html following instructions from http://www.elinux.org/wiki/JuiceBoxJTAG EXCEPT I soldered to the opposite side of the board, because it was easier. I successfully tested connectivity, so I know that the back pads connect to the dots on the front.
I eventually managed to compile jtag in cygwin, and get it to access the parallel port directly. I forget exactly how I did that, it being a couple months ago, before this board went down.
Anywho, in a classic "my car is acting funny and I don't know why" problem, my juicebox is acting funny and I don't know why.
Can anyone suggest some ways I can test the connectivity here? Maybe run a high on one of the lines? Manually tap out a couple bytes in some archane morse code?
My cable is 45 cm, but the suggested length is max 30 cm. Should that really make such a difference? Cutting it down is a less desirable solution, but reasonable if it'll help.