Data Translation DT3155, Руководство пользователя

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Appendix C
98
11. For Video Format , indicate the video format of your video input
source: 50 or 60 Hz.
12. For Desired Memory Size , select the amount of contiguous
memory (in MB) that you want to allocate in your system to hold
the acquired frames. A 60 Hz, 640-by-480 image requires 308 KB
per frame; a 50 Hz, 768-by-576 image requires 443 KB per frame.
The actual amount of memory that the device driver can allocate
depends on your system resources. It is recommended that you
select only as much memory as you need to leave memory for
other devices. Once you enter the desired memory size, the
device driver allocates as much memory as possible to match the
value you entered; the actual memory size allocated is shown in
the
Actual Memory Size text box when you restart your system.
13. Click Done .
The DT3155 Device Driver Configuration dialog box reappears with
the name of the board you just modified.
14. Click Close .
15. Restart your system to cause the new configuration to take effect.
Removing a Board from the Device Driver
Configuration
To remove a board from the DT3155 Device Driver configuration,
perform the following steps:
1. Open the Control Panel .
2. Double-click Sounds and Multimedia .
3. Click the Hardware tab.
4. Click DT3155 MACH Series Frame Grabber , then click
Properties .
5. Click the Properties tab.
6. Double-click Multimedia Drivers .