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Author Topic: AVR MKII ISP intermittent communications  (Read 2558 times)


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AVR MKII ISP intermittent communications
« on: April 24, 2013, 06:36:06 AM »

I purchased the MKII and have used it to communicate with my chip but have only had intermittent success. I have managed to program it several times and verify several times so I suspect that the ISP frequency is too high but under the interface settings in Atmel Studio 6, there is no ability to change the frequency. I also have the red LED on instead of a green one even though programming and verification of on-chip contents sometimes works. When will the MKII be able to support changes to the frequency? What is the work around in the meantime?




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Re: AVR MKII ISP intermittent communications
« Reply #1 on: April 24, 2013, 09:23:42 AM »
Hey Jason,

MKII supports changes of the programming frequency. I met no problems changing those: http://imgur.com/4JKnq59,221Q1V2#0 , http://imgur.com/4JKnq59,221Q1V2#1.

The problems might be caused by faulty powering of the chip. Or faulty ISO-MK2 powering because of the cable or the USB port(hub).

Best regards,
Technical support and documentation manager at Olimex