Firmware Settings, Default VME Settings

Firmware Settings	MOTLoad Firmware

6.5Firmware Settings

The following sections provide additional information pertaining to the MVME7100 VME bus interface settings as configured by MOTLoad. A few VME settings are controlled by hardware jumpers while the majority of the VME settings are managed by the firmware command utility vmeCfg.

VME settings in MOTLoad are preserved through the use of Global Environment Variables (GEVs). Configuration GEVs are executed only at power-on reset. Therefore, if VME configuration changes are implemented through vmeCfg and board reset must be effected for the changes to be implemented in MOTLoad.

6.5.1Default VME Settings

As shipped from the factory, the MVME7100 has the following VME configuration programmed via Global Environment Variables (GEVs) for the Tsi148 VME controller. The firmware allows certain VME settings to be changed in order for the user to customize the environment. The following is a description of the default VME settings that are changeable by the user. For more information, refer to the MOTLoad User’s Manual and Tundra’s Tsi148 User Manual, listed in Appendix B, Related Documentation.

zMVME7100> vmeCfg -s -m

Displaying the selected Default VME Setting - interpreted as follows:

VME PCI Master Enable [Y/N] = Y MVME7100>

The PCI Master is enabled.

zMVME7100> vmeCfg -s -r234

Displaying the selected Default VME Setting

- interpreted as follows:

VMEbus Master Control Register = 00000003 MVME7100>

The VMEbus Master Control Register is set to the default (RESET) condition.

zMVME7100> vmeCfg -s -r238

Displaying the selected Default VME Setting

- interpreted as follows:

VMEbus Control Register = 00000008 MVME7100>

The VMEbus Control Register is set to a Global Timeout of 2048 μseconds.

zMVME7100> vmeCfg -s -r414

MVME7100 Single Board Computer Installation and Use (6806800E08A)

MVME7100 specifications

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