Spartan 6 FPGA IO changes state disregarding design
I finally found that problem was that I have been loading the same design over and over.. So I thought that I have design that light the led but there was none.. Now it works as expected. because I thought that *.MCS files are generated only once not that I have to generate MCS file from BIT file every time I change bitstream.. now it is working, my problem now is that some of packets doesn't go intact through FT245.. I'll make simple acknowledge protocol to fix that.