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MCU requirement for using FreeRTOS

Posted by Nobody/Anonymous on February 2, 2005

I am new to FreeRTOS. May I know if there is any recommended requirements of the MCU speed when using FreeRTOS? Actually I am going to port to Samsung S3C826A, 8-bit mcu of around 1~2 MIPS max. Is this chip affordable to RTOS?


RE: MCU requirement for using FreeRTOS

Posted by Richard on February 2, 2005
MIPS values do not really allow one processor speed to be compared directly with another – although 1-2 MIPS does sound slow.

The FreeRTOS can be used in a number of different ways – with varying processing overheads. It is unlikely that your device will be suitable for a fully preemptive solution – but then with this chip it is doubtful that the application would warrant it anyway.

With a low tick frequency and cooperative scheduling the kernel can still simplify your design with very little overhead. See the


pages for an example.


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