Re: [psas-avionics] Help with the flight computer, and a real time Linux patch set

2010-03-01 Thread Josh Triplett
On Fri, Feb 26, 2010 at 02:26:01PM -0800, I wrote: > Quoting Doug Ausmus : > > >Have you calculated the sampling/control intervals yet? If so, what are the > >fastest ones or most critical ones that must absolutely be deterministic? > > No, but we have them bounded. There is no need to run the co

Re: [psas-avionics] Help with the flight computer, and a real time Linux patch set

2010-02-26 Thread I
Quoting Doug Ausmus : Have you calculated the sampling/control intervals yet? If so, what are the fastest ones or most critical ones that must absolutely be deterministic? No, but we have them bounded. There is no need to run the control loop faster than 1000Hz (which is a 25-50Hz *control*

Re: [psas-avionics] Help with the flight computer, and a real time Linux patch set

2010-02-25 Thread Doug Ausmus
Have you calculated the sampling/control intervals yet? If so, what are the fastest ones or most critical ones that must absolutely be deterministic? On Thu, Feb 25, 2010 at 9:12 PM, I wrote: > Quoting Josh Triplett : > >> >>> http://www.osadl.org/?id=99 >>> >> >> Yeah, a huge amount of -rt has

Re: [psas-avionics] Help with the flight computer, and a real time Linux patch set

2010-02-25 Thread I
Quoting Josh Triplett : http://www.osadl.org/?id=99 Yeah, a huge amount of -rt has made it into mainline Linux. The question remains, what do we actually need? This is a good question, and IMHO the answer is fairly straight forward. -We need the ability to run one or two critical control a

Re: [psas-avionics] Help with the flight computer, and a real time Linux patch set

2010-02-25 Thread Josh Triplett
On Wed, Feb 24, 2010 at 10:16:19PM -0800, Andrew Greenberg wrote: > 2. Real time linux patch set > > This looked pretty interesting: > > http://www.osadl.org/?id=99 Yeah, a huge amount of -rt has made it into mainline Linux. The question remains, what do we actually need? - Josh Triplett