https://www.scarabhardware.com/product/minispartan6-with-spartan-6-lx-25/

https://github.com/scarabhardware/miniSpartan6-plus/blob/master/miniSpartan6%2B_Rev_B.pdf

programming

apt-get install libusb-dev libftdi-dev

dpavlin@nuc:/nuc/FPGA$ git svn clone -s https://svn.code.sf.net/p/xc3sprog/code/ xc3sprog
dpavlin@nuc:/nuc/FPGA$ cd xc3sprog/
dpavlin@nuc:/nuc/FPGA/xc3sprog$ mkdir build
dpavlin@nuc:/nuc/FPGA/xc3sprog$ cd build/
dpavlin@nuc:/nuc/FPGA/xc3sprog/build$ cmake ..

xc3sprog

dpavlin@nuc:/nuc/FPGA/xc3sprog/build$ ./xc3sprog -c ftdi
XC3SPROG (c) 2004-2011 xc3sprog project $Rev: 774 $ OS: Linux
Free software: If you contribute nothing, expect nothing!
Feedback on success/failure/enhancement requests:
        http://sourceforge.net/mail/?group_id=170565 
Check Sourceforge for updates:
        http://sourceforge.net/projects/xc3sprog/develop

Using Libftdi, 
JTAG loc.:   0  IDCODE: 0x24004093  Desc:                       XC6SLX25 Rev: C  IR length:  6