Hi,
To initialize the JTAG chain containing the SCANSTA 111 bridge, I have to perform certain raw ID and DR shifts, as described in http://www.ti.com/lit/an/snla068c/snla068c.pdf
I was able to implement the necessary operations using the SVF file generated with Xilinx impact tool (with small modifications).
Attached is the UrJTAG script file, which selects the cable, defines the device and plays the SVF file.
Unfortunately I was not able to obtain the same functionality without using the SVF file. It would be desirable to implement necessary low level operations, allowing to configure bridges like SCANSTA 111 from the UrJTAG (or from Python with urjtag package) itself.
Regards,
Wojtek