Altera DE2-115 User Manual download pdf (Page 16)

5. The DE2_115_ControlPanel.sof bit stream is loaded automatically as soon as the

DE2_115_control_panel.exe is launched.

6. In case the connection is disconnected, click on CONNECT where the .sof will be re-loaded

onto the board.

Note, the Control Panel will occupy the USB port until you close that port; you cannot use Quartus II to

download a configuration file into the FPGA until the USB port is closed.

8. The Control Panel is now ready for use; experience it by setting the ON/OFF status for some

LEDs and observing the result on the DE2-115 board.

Figure 3-1 The DE2-115 Control Panel

The concept of the DE2-115 Control Panel is illustrated in Figure 3-2. The “Control Circuit” that

performs the control functions is implemented in the FPGA board. It communicates with the

Control Panel window, which is active on the host computer, via the USB Blaster link. The

graphical interface is used to issue commands to the control circuit. It handles all requests and

performs data transfers between the computer and the DE2-115 board.

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Altera DE2-115 User Manual Page 16