Altera DE2-70 User Manual page 76

Nios II
Figure 6.5. Block diagram of the USB paintbrush demonstration.
Demonstration Setup, File Locations, and Instructions
Project directory: DE2_70_NIOS_HOST_MOUSE_VGA
Bit stream used: DE2_70_NIOS_HOST_MOUSE_VGA.sof
Nios II Workspace: DE2_70_NIOS_HOST_MOUSE_VGA\Software
• Connect a USB Mouse to the USB Host Connector (type A) of the DE2-70 board
• Connect the VGA output of the DE2-70 board to a VGA monitor (both LCD and CRT type
of monitors should work)
• Load the bit stream into FPGA
• Run the Nios II and choose DE2_70_NIOS_HOST_MOUSE_VGA as the workspace. Click
on the Compile and Run button
• You should now be able to observe a blue background with an Altera logo on the VGA
display
• Move the USB mouse and observe the corresponding movements of the cursor on the screen
• Left-click mouse to draw white dots/lines and right-click the mouse to draw blue dots/lines
on the screen.
Figure 6.6 illustrates the setup for this demonstration.
Altera
System
Interconnect
CPU
Fabric
Philips
ISP1362
Host
Port
VGA
Controller
Frame
Buffer
73
DE2-70 User Manual
USB
Mouse
ADV7123