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Hi all!
We have our BeMicro CV A9 Dev Kit and have a question. Can we configure it with Separate JTAG configuration header? In manual (http://www.alterawiki.com/uploads/f/f3/hardware_reference_guide_bemicro_cv_a9_1.2.pdf) there are only two methods been described, but it said that three methods are presented. Did somebody managed to configure BeMicro CV A9 with third method (Separate JTAG configuration header)?- Tags:
- bemicro
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I have just tried but don't works.
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And for me the same result
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I think that only one USB blaster at time can send TCK over Jtag, maybe desoldering some resistor can enable external USB blaster (built-in is slow?)
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I finally decided not to use Separate JTAG configuration header at all. But maybe it (desoldering some resistor) can work)
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All boards with embedded USB Blaster II have a header connected to MAX V JTAG pins for initial programming, partly unpopulated. If there's one 10-pin header and no other connection to MAX V dedicated JTAG pins, I would expect it's for MAX V programming only.
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I reviewed the Dev Kit schematic and found that the board has a separate JTAG header for MAX V programming. The hardware connections suggest that an external USB Blaster can be routed to CV JTAG by a software option, but it may be unsupported in actual MAX V FPGA.
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Here is official response from BeMicro team:
--- Quote Start --- The separate JTAG header is for debugging purposes and is not a supported method for programming the board. Regards, BeMicro Support --- Quote End --- Maybe they can save soldering unuseful pin header..
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