[hpsdr] JTAG Mercury programming problem.

[Johan Maas]

Hi All,

Iam following the lectures of Kirk; very good!

He placed the mercury and ozy code using the nwire connections on the web.

Now iam trying to program the mercury via JTAG; resulting in the message "Can't access JTAG chain"

Iam using a clone USB programmer (link to ebay from the hpsdr reflector).

I tried the JTAG debugging option which results in :

Uncertain JTAG chain
info: Detected 1 device(s)
info Device 1: EP3C25

The programmer detects the device but seems not able to program via JTAG the FPGA.

Programming the prom is working correctly.

Also the programming of OZY using JTAG worked.

Are there other using the clone USB blaster and having problems programming the Mercury FPGA and solved the problem?

73 Johan PA3GSB
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