I have AvrDragon programming tool from Atmel. Does it work on atxmega16A4 or do I need buy another tool?
yes, but first you need to update the firmware by using avrstudio.
$12 RS-232 Level Shifter
Thank you for the answer. One more question. How should I connect hardware wires between AvrDragon and PDI_DATA & PDI_CLK device pins?
I suppose I should use '6 pin ISP' on AvrDragon for PDI connection, like that picture?
(http://www.atmel.com/dyn/resourc...)->page 9->Figure 8->PDI.
Edit 1: problem is solved. It works, when I connect it like the picture.
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