//  0  only the local scsn slave
//  1  the local and the other fpga slave
//  2  the local, the other fpga slave and the 4 traps for ni test
//  3  the local and the DUT
//  4  the local, the DUT and the 4 traps for ni test
//  5  the local and the WT
//  6  the local and the 4 traps for ni test
//  7  the local, the other fpga and the WT
const fpga2 = 1; // lvds
const fpga1 = 2; // adc/dac
const dut   = 3; // wafer tester

// scsn ring fpga2+wt trap
write fpga2, 0x4400, 1;
reset;
nop;
wait 80;
// scsn ring fpga2+fpga1+wt trap
write fpga2, 0x4400, 7;
reset dut;
nop;
wait 80;