I developed a USB VF Display product using a ATMEGA16-16PI.
When I tried to change to an external 14.74 Mhz crystal to increase the serial rate to 230.4k baud AVR Studio report the error JTAGICE mkII: IDR event 0x00 and I am unable to do anything with reset or single step.
Does anyone know what that error message means?
I programmed CKSEL=1111 SUT=11 (last fuse option). I also tried the CKOPT both ways. What am I doing wrong?