Configuring the Device Driver Settings (SIDRVR)

To configure the device driver (SIDRVR) choose the option "Configure Virtual Driver" from the Settings menu. If you are running under Windows NT, 2000, XP, or Vista you need to be logged into the system with administrative rights in order to configure SIDRVR. You will need to reboot your system in order for any changes made on this screen to take effect.

• Comm Buffer Size: Changes the amount of memory used by the drivers I/O buffers. Note that the memory allocated by this option is kernel memory and you should only increase this amount if you are receiving buffer overflows when running SI_SCOPE .
• Virtual Irq Sharing: Turn this option on to instruct the driver to share the irq you specified when setting up your cards parameters.
• High Resolution Time Stamps: Only valid when running under Windows NT, 2000, XP, or Vista. When high resolution is enabled SIDRVR will record time stamps with 1 millisecond accuracy. Using this option will utilize the most granular time stamping methods allowed by the operating system and will result in somewhat slower system throughput. With this option off SIDRVR will default to a less accurate time stamp that will be in the 10-100 millisecond range. To get the most accurate time stamp information you should turn this option on and disable the "Auto 16500 UART Detection" option from the "Set Run-Time Options" menu. 
• Claim Hardware During O/S Load: Instructs SIDRVR to claim the I/O resources during operating system boot. If you are receiving an error stating that SIDRVR could not virtualize your irq then turn this option on.