On Fri, May 07, 2021 at 10:14:34PM +0530, Raul Piper wrote: > On Fri, May 7, 2021 at 12:07 PM Greg KH <greg@xxxxxxxxx> wrote: > > > > On Thu, May 06, 2021 at 08:12:48PM +0530, Raul Piper wrote: > > > On Thu, May 6, 2021 at 1:01 AM loďc tourlonias > > > <loic.tourlonias@xxxxxxxxx> wrote: > > > > > > > > On Wed, May 5, 2021 at 8:07 PM Raul Piper <raulpblooper@xxxxxxxxx> > wrote: > > > > > > > > > > Hello, > > > > Hi > > > > > I am having an embedded linux system and wanted to use any RTOS on > > > > > it. Can I use Free RTOS? > > > > > My project has 2 tasks , one is producer and another is consumer > > > > > working parallely. > > > > I'm afraid I don't understand what you are requesting and I hope that > > > > someone else understand more clearly. But I'll still explain my > > > > understanding. > > > > You want to run a RTOS upon Linux OS, doesn't make it too much OSes? > > > > Then I have several questions: > > > > Do you really need a Real Time Operating System, can't you run your > > > > project in Linux userspace? > > > I can do that but Linux is not an ROS afaik. Even though i dont have > > > strict timing requirements , its like a sensor on i2c(producer) and > > > then another consumer tasks which not > > > only feeds on this data but also tell the i2c sensor by sending some > > > commands to it. > > > > That should be fine, Linux can be a "Real Time Operating system" if you > > use the RT patchset if your workloads require it. > > > OK I need to check on this RT Patchset if at all I need real time features. > > > If you do NOT have strict timing requirements, then there is no need to > > worry about any of this, so I do not understand your wish to slow your > > system down by running a "ROS". Why? > > > Typo this is RTOS (not R OS - Robot operating system ;) ) > > > > Have you tried Linux RTOS extension (again I'm no expert and haven't > > > > tried them but you can look at Xenomai)? > > > I will explore this.I was thinking if i can use Posix thread to have > > > two tasks one reading sensors and another sending commands to it.But > > > then again i am confused > > > if using a posix thread full fills the requirement of RTOS. The reason > > > I want to use RTOS is , I am porting a Microcontroller code using RTOS > > > (free RTOS) to Linux and > > > afaik FreeRTOS doesnt work on Linux. > > > > What is your "requirement" exactly? > Read the data from the sensor and also change the type of data sent by the > sensor by analysing the received data by sending the command to the sensor > periodically based on trigger.There is some batch of data which a > "simultaneously" running algorithm > is evaluating and send the command based on calculated trigger, to sensor > to change the data stream.This batch of data is of size 40-60 bytes length > and may vary each time a batch is being read. > So in summary i wany two tasks to run together. > RTOS is one option > Posix thread is Another "real time" has nothing to do with "posix threads" at all. I suggest reading up on what these terms really mean and figure out your specific requirements to determine what you have to do here. good luck! greg k-h _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
