DE2-70 User Manual
1 8
into the memory.
The Sequential Read function is used to read the contents of the SDRAM-U1 and place them into a
file as follows:
1.
Specify the starting address in the
Address
box.
2.
Specify the number of bytes to be copied into the file in the
Length
box. If the entire
contents of the SDRAM-U1 are to be copied (which involves all 32 Mbytes), then place a
checkmark in the
Entire Memory
box.
3.
Press
Load Memory Content to a File
button.
4.
When the Control Panel responds with the standard Windows dialog box asking for the
destination file, specify the desired file in the usual manner.
Users can use the similar way to access the SSRAM and Flash. Please note that users need to erase
the flash before writing data to it.
3.5
USB Monitoring
The Control Panel provides users a USB monitoring tool which monitors the real-time status of a
USB mouse connected to the DE2-70 board. The movement of the mouse and the status of the three
buttons will be shown in the graphical and text interface. The mouse movement is translated as a
position (x,y) with range from (0,0)~(1023,767). This function can be used to verify the
functionality of the USB Host.
Follow the steps below to exercise the USB Mouse Monitoring tool:
1.
Choosing the
USB
tab leads to the window in Figure 3.8.
2.
Plug an USB mouse to the USB HOST port on the DE2-70 board.
3.
Press the
Start
button to start the USB mouse monitoring process, and button caption is
changed from
Start
to
Stop
. In the monitoring process, the status of the USB mouse is
updated and shown in the Control Panel’s GUI window in real-time. Press
Stop
to
terminate the monitoring process.
