Hi All, Does anyone have any comments on my quesions below. I'm really looking for a good place to start and it would be a great help if someone could suggest one.
Or, someone could guide me in the right direction with a serial driver I'm working on. I'm trying to make the serial driver interrupt get serviced with 10-12ms when its fired. Do I use a timer or is there something in the rt patch that I can adjust in response to interrupts? Thanks much. --Junior > -----Original Message----- > From: [EMAIL PROTECTED] > Sent: Thu, 25 Jan 2007 07:11:30 -0800 > To: [EMAIL PROTECTED] > Subject: Re: RT example > >> On Wed, Jan 24, 2007 at 10:58:41AM -0800, Junior wrote: >>> Does anyone have example code using the PREEMPT_RT patch? >> >> You could for example start with cyclictest. It is also a good example >> for how to write cyclic realtime programs on Linux. > > Thanks, I will start there. > > Where do I get the rt library? (-lrt in makefile)? > > cyclictest.c: In function `timerthread': > cyclictest.c:153: error: `SIGEV_THREAD_ID' undeclared (first use in this > function) > > Someone got this before but no solution on how to fix it. > > >> Note that realtime is not about running fast, but running "in time". >> That may often mean that the overall system performance goes down. >> >>> PS. I'm using an ARM9 platform >> >> Do you have clocksource/clockevent support for your ARM9 chip? > > Aparently I don't. It's set as IS_TICK_BASED. How does this affect the > system? > > Thanks, > --Jr. > - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
