VxWorks

309 articles

Is safety-critical ready for multi-core?

By Paul Parkinson You may feel that you're experiencing déjà vu reading this blog, but the title 'Is safety-critical ready for multi-core?' is different to an earlier blog, which was 'Is multi-core ready for safety-critical?'. In the earlier blog, I discussed some recent developments in multi-core processors in the context of their suitability for use in safety-critical systems. In this…

To Boldly Go…

By Mike Deliman Seen on SlashDot - did Viking miss signs of life on Mars? The science facts behind the SlashDot article support that idea.  Remember - in 1976 scientists didn't know a whole lot about Mars; Viking was really the first successfull attempt to put a science observatory on another planet with the idea of operating for more than…

POSIX Profiles

By Alex Wilson Well, as work caught up with me I missed the Lisbon experience, but apparently it was raining there anyway - so it was just like home! As I mentioned profiles in my last blog, I thought I would expand on these based on Andrew Josey's presentation [PDF from Open Group Site] to see what they look like…

One Thousand Days

By Mike Deliman This afternoon, Spirit Rover will start it's 999th Sol (Martian Day) on Mars.  Tomorrow will be Sol 1K. Next month, on the 14th/15th of November, Opportunity's calendar will hit the same milestone.  A Thousand Days on-planet. Congratulations to all the teams who crafted, constructed, controlled, and cajoled the rovers from conception to the current-day. Well Done! Continue…

Is multi-core ready for safety-critical?

By Paul Parkinson I recently attended the Military & Aerospace Electronics conference in the UK, at which a number of technical presentations were given on new technologies relevant to this sector, including an excellent one by Gordon Hunt of RTI on the Data Distribution Standard (which probably deserves a blog entry in its own right). However, the presentation which I…

Distant Weather

By Mike Deliman NASA's Spitzer Space Telescope has made the first measurements of the day and night temperatures of a planet outside our solar system. The infrared observatory revealed that the Jupiter-like gas giant planet circling very close to its sun is always as hot as fire on one side, and potentially as cold as ice on the other. "This…

View from Above.

By Mike Deliman It's not every day you can watch your work in action. It's even less often that you get to watch your work watching your work in action. :) Mars' latest arrival takes picture of second oldest running vehicle on the planet. Click for a high-res image Considering it's a photo taken from orbit while in motion... isn't…

Software Componentization

By Maarten Koning Componentization is a seductive software development practice.  Simply put, software componentization is when you break your software system down into smaller easily identifiable pieces that have well-defined interfaces – and you do this in a specific way (i.e. by following a component model). The promise of software componentization is five-fold: Continue Reading ››

Tracking Down Floating Point Corruption

By Mike Deliman Recently a long-time customer of mine emailed me with a question. They were having anomalies when computing floating point values. Specifically, hardware would be read - values would be processed into a float, and that value was then used as a metric. Every now and then the metric would be off - it would jump by several…