JTAG communication with packages in PDIP which have the CKOUT fuse enabled and running above 3.5V may be unstable if there is long wiring from the AVR Dragon to the PDIP AVR.
· ATtiny43U Programming issue:
Parallel Programming may fail if the Internal RC Osc fuse is set with the shortest startup time.
· ATtiny84 Programming issue:
Parallel Programming may fail on the ATtiny84 if both the DWEN fuse and any of the external clock fuses at enabled at the same time.
Workaround is to use the STK500 platform for Parallel Programming of this part.
· ATtiny26 Programming issue:
Parallel Programming on ATtiny26 is unstable with the AVR Dragon
Workaround is to use the STK500 platform for Parallel Programming of this part.
· An error message will be triggered when entering the Board tab in the programming dialog, if there is no target voltage present.
· In order to set ISP frequency, AVR Dragon needs to sense target voltage. See trouble shooting guide