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#
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# entry,v 1.4 2002/01/17 21:47:44 joel Exp
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#
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This is the RTEMS entry in the Crossgcc FAQ at @uref{http://www.objsw.com}.
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As of 8/19/99, it has been submitted twice and the FAQ not updated.
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RTEMS is a freely available, royalty free real-time executive with
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multiprocessor capabilities. RTEMS' design provides performance and
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capabilities are comparable to those of the best commercial executives.
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The directive execution times and other critical performance measures such
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as interrupt latency are best of class. RTEMS was developed by On-Line
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Applications Research Corporation (OAR) under contract to the U.S. Army
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Missile Command.
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RTEMS includes support for multiple APIs. Currently RTEMS supports a
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POSIX threads API, and an RTEID based API which is similar to pSOS+.
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RTEMS includes a number of advanced real-time features including optional
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rate monotonic scheduling support, binary semapahores with priority
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inheritance, and watchdog timer functions.
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RTEMS includes a port of the FreeBSD TCP/IP stack that has high
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performance on very modest hardware. A remote debug server is supported
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on some targets that allows debugging across the network.
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RTEMS provides a rich run-time environment with a reentrant C library,
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POSIX 1003.1b support, and file system support. It also includes optional
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debug aids like stack overflow and heap integrity checking.
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RTEMS is built using GNU autoconf and can be built on any host supporting
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the GNU tools including Linux, FreeBSD, NetBSD, Solaris, and MS-Windows to
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name but a few. The current RTEMS release supports a the following CPU
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families:
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Motorola m680x0, m683xx, and ColdFire
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Motorola and IBM PowerPC (4xx, 6xx, 7xx, and 8xx)
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Hitachi SH-1
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Intel i386, i486, Pentium, and i960
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SPARC
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MIPS
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HP PA-RISC
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AMD A29K
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There are over 35 Board Support Packages included with RTEMS including
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BSPs for the SPARC and PowerPC simulators included with gdb. There are
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numerous BSPs for CPUs targetting the embedded market such as the Motorola
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m683xx and mpc8xx series which support the on-CPU peripherals.
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WWW:
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@uref{http://www.OARcorp.com}
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E-mail:
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@code{rtems-info@@OARcorp.com}
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