| [1b97fe7] | 1 | # |
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| 2 | # $Id$ |
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| 3 | # |
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| 4 | |
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| 5 | This is the RTEMS entry in the Crossgcc FAQ at http://www.objsw.com. |
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| 6 | As of 8/19/99, it has been submitted twice and the FAQ not updated. |
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| [d11a35c] | 7 | |
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| 8 | RTEMS is a freely available, royalty free real-time executive with |
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| 9 | multiprocessor capabilities. RTEMS' design provides performance and |
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| 10 | capabilities are comparable to those of the best commercial executives. |
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| 11 | The directive execution times and other critical performance measures such |
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| 12 | as interrupt latency are best of class. RTEMS was developed by On-Line |
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| 13 | Applications Research Corporation (OAR) under contract to the U.S. Army |
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| 14 | Missile Command. |
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| 15 | |
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| 16 | |
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| 17 | RTEMS includes support for multiple APIs. Currently RTEMS supports a |
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| 18 | POSIX threads API, and an RTEID based API which is similar to pSOS+. |
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| 19 | RTEMS includes a number of advanced real-time features including optional |
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| 20 | rate monotonic scheduling support, binary semapahores with priority |
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| 21 | inheritance, and watchdog timer functions. |
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| 22 | |
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| 23 | RTEMS includes a port of the FreeBSD TCP/IP stack that has high |
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| 24 | performance on very modest hardware. A remote debug server is supported |
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| 25 | on some targets that allows debugging across the network. |
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| 26 | |
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| 27 | RTEMS provides a rich run-time environment with a reentrant C library, |
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| 28 | POSIX 1003.1b support, and file system support. It also includes optional |
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| 29 | debug aids like stack overflow and heap integrity checking. |
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| 30 | |
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| 31 | RTEMS is built using GNU autoconf and can be built on any host supporting |
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| 32 | the GNU tools including Linux, FreeBSD, NetBSD, Solaris, and MS-Windows to |
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| 33 | name but a few. The current RTEMS release supports a the following CPU |
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| 34 | families: |
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| 35 | |
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| 36 | Motorola m680x0, m683xx, and ColdFire |
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| 37 | Motorola and IBM PowerPC (4xx, 6xx, 7xx, and 8xx) |
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| 38 | Hitachi SH-1 |
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| 39 | Intel i386, i486, Pentium, and i960 |
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| 40 | SPARC |
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| 41 | MIPS |
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| 42 | HP PA-RISC |
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| 43 | AMD A29K |
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| 44 | |
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| 45 | There are over 35 Board Support Packages included with RTEMS including |
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| 46 | BSPs for the SPARC and PowerPC simulators included with gdb. There are |
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| 47 | numerous BSPs for CPUs targetting the embedded market such as the Motorola |
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| 48 | m683xx and mpc8xx series which support the on-CPU peripherals. |
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| 49 | |
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| 50 | WWW: |
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| 51 | |
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| 52 | http://www.OARcorp.com |
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| 53 | |
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| 54 | E-mail: |
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| 55 | |
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| 56 | rtems-info@OARcorp.com or |
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| 57 | Joel Sherrill (joel@OARcorp.com) |
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| 58 | |
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![[RTEMS Logo]](/images/logo.png){kind=logo}
