RAM 4.5 BUX II Series Manual de usuario descargar pdf (Pagina 21)

DE1 User Manual

played from the Audio DAC circuit.

6. Note that the Asynchronous Port 1 is connected to the Audio DAC part, as shown in Figure

3.7. Once you selected Asynchronous Port 1 and clicked the Configure button, the Audio

DAC Controller will communicate with the Flash memory directly. In our example, the

AUDIO_DAC Verilog module defines a circuit that reads the contents of the Flash memory

and sends it to the external audio chip.

3.7 VGA Display Control

The Control Panel provides a tool with the associated IP that allows the user to display an image via

the VGA output port. To illustrate this feature, we will show how an image can be displayed on a

VGA monitor. Perform the following steps to display a default image:

• Select the VGA tab in the Control Panel to reach the window in Figure 3.9.

Figure 3.9. Displayed image and the cursor controlled by the scroll bars

• Make sure that the checkboxes Default Image and Cursor Enable are checked.

• Connect a VGA monitor to the DE1 board and you should see on the screen the default

image shown in Figure 3.9. The image includes a cursor which can be controlled by means

of the X/Y-axes scroll bars on the DE1 Control Panel.

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RAM 4.5 BUX II Series Manual de usuario Pagina 21