I have problem with readback for virtex2

[wei ming]

Now I am doing Xilinx Virtex2 (xc2v1000) readback to capture register
status. I have done C++ code for this, but it doesn't work at all.
After I send the CFG_IN(000101) instruction, the command is following:

aa995566h(sync word);
30002001h(write to FAR register);
Frameaddr(from the .ll file);
30008001h(write to CMD register);
00000004h(RCFG);
280060d4h(Number of word to readback)(3392 Bit/Frame 106x 32 for
xc2v1000. 212(d4h)x32)
00000000h;flush the command pipeline.
00000000h;flush the command pipeline.(64 Bit register)

I think, the virtex2 is same with virtex. The value for one frame
readback word is 2 times the Frame Bit. The first 3392 Bit is pad
frame. then is CLB frame.

then after the CFG_OUT(000100) instruction, ignore the first 3392 bit,
after that readback from TDO when offset (from .ll file) plus 32(pad
word). I instantiated the capture_virtex2. So I don't know how to do
it. Have anyone idea to do it? Any informtion is welcome. Thanks in
advance.