sendInstruction2FPGA get data addr=1, data=0
sendInstruction2FPGA get data addr=2, data=0
sendInstruction2FPGA get data addr=3, data=0
sendInstruction2FPGA get data addr=5, data=1
sendInstruction2FPGA get data addr=20, data=128
sendInstruction2FPGA get data addr=21, data=