def read_fpga_reg(self, fpga_num, addr, cabinet, frame, board):
        """Read the value of an FPGA (SPI) register.

        See the SpI/O project's spinnaker_fpga design's `README`_ for a listing
        of FPGA registers. The SpI/O project can be found on GitHub at:
        https://github.com/SpiNNakerManchester/spio/

        .. _README: https://github.com/SpiNNakerManchester/spio/\
                    blob/master/designs/spinnaker_fpgas/README.md#spi-interface

        Parameters
        ----------
        fpga_num : int
            FPGA number (0, 1 or 2) to communicate with.
        addr : int
            Register address to read to (will be rounded down to the nearest
            32-bit word boundary).

        Returns
        -------
        int
            The 32-bit value at that address.
        """
        arg1 = addr & (~0x3)
        arg2 = 4  # Read a 32-bit value
        arg3 = fpga_num
        response = self._send_scp(cabinet, frame, board, SCPCommands.link_read,
                                  arg1=arg1, arg2=arg2, arg3=arg3,
                                  expected_args=0)
        return struct.unpack("<I", response.data)[0]
def read_fpga_reg ( self , fpga_num , addr , cabinet , frame , board ) : arg1 = addr & ( ~ 0x3 ) arg2 = 4 arg3 = fpga_num response = self . _send_scp ( cabinet , frame , board , SCPCommands . link_read , arg1 = arg1 , arg2 = arg2 , arg3 = arg3 , expected_args = 0 ) return struct . unpack ( "<I" , response . data ) [ 0 ]
Read the value of an FPGA (SPI) register.

        See the SpI/O project's spinnaker_fpga design's `README`_ for a listing
        of FPGA registers. The SpI/O project can be found on GitHub at:
        https://github.com/SpiNNakerManchester/spio/

        .. _README: https://github.com/SpiNNakerManchester/spio/\
                    blob/master/designs/spinnaker_fpgas/README.md#spi-interface

        Parameters
        ----------
        fpga_num : int
            FPGA number (0, 1 or 2) to communicate with.
        addr : int
            Register address to read to (will be rounded down to the nearest
            32-bit word boundary).

        Returns
        -------
        int
            The 32-bit value at that address.