Rod Speed wrote:
Dan Bloomquist wrote
Rod Speed wrote
Eeyore wrote
Rod Speed wrote
Have fun explaining why there is a push to sell high
end cars too, when those dont even have an OS.
Yes they do.
No they dont.
google: rtos automotive
437,000 hits
google: aliens
37,500,000 hits
http://en.wikipedia.org/wiki/Operating_system
A microwave oven doesnt have an OS either.
http://www.freescale.com/webapp/sps/...01272686884403
Automotive Grade Linux Features
Automotive Grade Linux is specifically engineered to meet automotive industry
requirements, including real-time determinism, fast boot-time and quick
in-vehicle bus communication response time - all within a surprisingly small
footprint. Automotive Grade Linux offers the following benefits:
With an average user space latency of 50 microseconds and 48-microsecond
worst-case interrupt latency under heavy load, Automotive Grade Linux has quick
response time to interrupts and low user-space latency.
Automotive Grade Linux complies with the low memory resources of automotive
hardware by efficiently fitting into 1-2 MB of Flash.
Optimized for various sleep modes, Automotive Grade Linux enables
controller-level power management for CPU and peripherals.
Automotive Grade Linux interfaces with in-vehicle networks, such as the CAN bus,
and has been engineered to respond to incoming responses to meet automotive
specifications.
Critical applications can be operational within 50ms after power on, and system
and application boot times are below 1 - 2 seconds after power on.
Detailed Features
Automotive Grade Linux is based on open standards such as Java™ and POSIX
threading to support automotive software development. Striving to meet the many
technical needs in automotive development, Automotive Grade Linux is designed to
provide middleware for integration with a full range of technologies, including:
Bluetooth®
Wireless networking
GPS navigation
Voice recognition
Most drivers for streaming entertainment and communication protocols for use in
fleet management, such as the SAE J1587 protocol