The VMELinux Project

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(Last updated: Nov. 06, 1999)

The VMELinux Project's goal is to make Linux a sensible alternative for embedded VMEbus applications. The project's primary offering is the Kernel Level Linux Device Driver that interfaces between the Unix Shell environment and the VMEbus. The driver is compatible with the Tundra Universe PCI-VME bridge integrated circuit. Thus, our driver only supports VMEbus boards with a PCI local bus.

Testing was accomplished with a Xycom Pentium board. The VMELinux Device Driver is maintained by a team of engineers and from folks in the embedded computer industry. We wish to make VMELinux useful to many people and projects. Thus, all the programs you can find on this site are governed under the GNU Free Software Foundation license.

VMELinux Device Driver

This is a kernel device driver. It interfaces user programs to the system controller and the Tundra Universe chip. It is a traditional driver in that it uses files within the "/dev" directory for communication. This driver uses the standard set of calls and is thus familier to any programmer who decides to directly communicate with the /dev devices.

VMEUtils Program

This is a program which runs in a standard user shell. It communicates directly with the Device Driver. It offers the user a command prompt environment whereby access to the VMEbus is made. Is offers the programmer a look at how to speak to the Device Driver.

VMEShell Utilities

These are handy routines to call from the Linux prompt. They send instructions to the VMEUtils program on where and how to access the VMEbus. What returns is a display of actual VME data. Also, you can read and write to files.

Another nice feature of these routines is they store access information in the local directory. Thus, you can log off, return and begin accessing the VMEbus without remembering what address to use. Organized this way, you can have different subdirectories for each of your VMEbus boards and eliminate repeat addressing configurations.

All of these are available within a single tar.gz package. Download VMELinux0_8a.tar.gz. The plain tar files are also available from VMELinux0_8a.tar.

Plenty of help is available in the "VME Howto".

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