Data Translation DT3155, Руководство пользователя

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Appendix C
92
19. 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.
20. Click Done .
The DT3155 Device Driver Configuration dialog box is redisplayed;
you can see the name of the board you just added.
21. Click Close to end the DT3155 configuration.
22. If you made any changes to the default settings, click OK to
confirm that you need to restart Windows before the changes will
take effect.
23. Click OK to restart Windows.
For proper operation, it is very important that you restart Windows
when prompted.
Modifying a Board in the Device Driver
Configuration
To modify a board in the device driver configuration, perform the
following steps:
1. Open the Control Panel.
2. For Windows 98, double-click Multimedia .
The Multimedia Properties dialog appears.
For Windows Me, double-click Sounds and Multimedia .
The Sounds and Multimedia Properties dialog appears.