AVR-Chat

Dave VanHorn wrote:
> Still working on this one, but I have a critical delivery to do, and 
> need other eyes.
> 
> Jtag ice connected to a project, but there's nothing on the Jtag pins 
> other than the M128 itself.
> 
> Jtag is seen by studio, but can't debug, and can't be opened as a chip 
> programmer to check fuses etc.   The chips are raw M128's so they will 
> have the M103 fuse set wrong.
> 
> So far, I can't get any of them talking, and unfortunately, I don't 
> have any other platforms handy with Jtag ice ports to test against.
> 
> Pinout and connections seem ok, VCC, /Reset etc.
> Chips are new, so should be running on internal 1MHz osc.

Remember that the output buffer of the jtag ice is powered
from the target pcb. See if there's any pulses on the jtag
pins with a cro when you open the programming dialog in avr studio.