Which RTOS is the best around?

[suru]

which rtos is best??

linux is always better.

 

[asprakash]

Re: which rtos is best??

In Open source, the adv is, u can learn more compare with commercial RTOS. But the problem is, it has very less future supporting tools in Open source RTOS compare with commercial RTOS.
@yangvic : You can find enough links to download the RTLinux source code and supporting tools from **broken link removed** A separated forum is available for RTLinux in **broken link removed**

 

[jitkasem]

Re: which rtos is best??

try rtx , it comes with KEIL and support ARM7 too.

 

[tha]

Re: which rtos is best??

for PIC:
salvo good.

 

[cfriend]

which rtos is best??

try to eCos

 

[funnynypd]

which rtos is best??

pumpkin for PICs.

 

[buncha]

which rtos is best??

I need to RTOS ebook.

Added after 1 minutes:

I can not download ebook.

 

[funnynypd]

which rtos is best??

Did you check the pumpkin web site? They do have a decent user manual posted.

 

[Tamasco]

Re: which rtos is best??

Has anyone got a tutorial on VxWorks. Is it Linux related?

Added after 3 minutes:

i m new to rtos can any guide me which is best

It depends on your sittuation.

If your H/W is more powerful one, you can choose more capable and expensive.

If your H/W is less powerful, you must select very simple one.

On which platforms does VxWorks run?
x86 or ARM?

 

[alam.tauqueer]

which rtos is best??

linux is much better....

 

[ebook123456789]

which rtos is best??

it really depends on your application. I do not think VxWorks is the best choice for mobile applications

 

[rajeshbij]

Re: which rtos is best??

It all depends on your application.
Whether your application really need an RTOS and if so then How much interrupt latency you really need. try to answer these question and you may then consult the spec sheets of different RTOSes

 

[irmakci]

Re: which rtos is best??

You can see
http://www.netrino.com/Embedded-Systems/How-To/RTOS-Selection

 

[funnynypd]

which rtos is best??

linux for PIC or for PC?

 

[devendra_devgupta]

Re: which rtos is best??

Try www.freertos.org, or buy the book by

Jean J. Labrosse on uCOS-II to start with.

There are RTOS that costs like cmx. Support available but you have got to pay.

For free-of-charge alternative, uCOS-II is hot.

John Leung
www.TechToys.com.hk

Please tell me is uCIS-II is free. i have seen its pricing list on Micrium.com. please tell me

 

[SmartBomb1979]

Re: which rtos is best??

Try www.freertos.org, or buy the book by

Jean J. Labrosse on uCOS-II to start with.

There are RTOS that costs like cmx. Support available but you have got to pay.

For free-of-charge alternative, uCOS-II is hot.

John Leung
www.TechToys.com.hk

Please tell me is uCIS-II is free. i have seen its pricing list on Micrium.com. please tell me

uC/OS-II is not free to use in a product. The website lists the prices.

If you use the OS in a product and it becomes known, you could be liable for a hell of a lot of money.

I believe you can use the OS for research & academic (non-profit) uses but you should confirm with Micrium.

I believe that the original uC/OS (not uC/OS-II) is free to use for anything, since it is older.

Check with Micrium to be sure, don't take my words as the final truth!

 

[spf]

Re: which rtos is best??

scmRTOS

**broken link removed**

scmRTOS is a free tiny preemptive Real-Time Operating System intended for use with Single-Chip Microcontrollers.

scmRTOS is capable to run on small uCs with as little amount of RAM as 512 bytes.
The RTOS is written on C++.
All source code is available.

Features:

    * Preemptive multitasking.
    * Up to 31 user processes (tasks).
    * Fast interprocess program control flow transfer:
          o MSP430: 45-50 us @5MHz.
          o AVR: 38-42 us @8MHz.
          o Blackfin: 1.5 us @200 MHz.
          o ARM7: 5us @50 MHz (ARM mode), 8 us @50 MHz (Thumb mode).
          o FR: 10 us @32MHz.
    * Low Resource Requirements:
          o Code: from about 1 kilobyte (depend on application and target platform).
          o Kernel Data: 8 + 2*Process Count.
          o Process Data: 5 bytes.
    * Supports separate return stack (required for IAR EW AVR).
    * Two methods of program control flow passing:
          o Direct context switcher call.
          o Software Interrupt context switch.
    * Interprocess communication:
          o Fast Event Flags (binary semaphores).
          o Mutual Exclusion Semaphores (Mutexes).
          o Byte-wide Channels (queues of "raw" data).
          o Arbitrary-type Channels (queues of arbitrary-type objects).
          o Messages.
    * Optional software switch on separate ISR stack on some platforms.
    * Support of various target hardware features such as hardware shifters etc., for more efficiency.