Programmer freezes on BeMicro CV - used to work fine

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I just went through the schematic I posted and looked at the devices connected to VCCIO, and they all should operate fine at 2.5V and 3.3V. I do not see an issue in the board design that would cause JTAG not to work with VCCIO set to 2.5V.

I'll test the board I have at work tomorrow and see if it fails ...

Can you post a link to the "other forum" discussion?

Cheers,

Dave

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Hi Dave,

The discussion on this forum discusses the BeScope design which uses the BeMicroCV. Post# 67 mentions the jumper to fix the programmer.

http://forums.parallax.com/showthread.php/156989-bescopebundle-tip-for-those-who-want-to-buy-an-fpga-development-board/page4

I was having the same issue and changing Vccio=3.3V fixes the communication issue. I haven't researched enough to figure out why this is.

Thanks

Carl