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Discussion Groups | MSP430 | Measuring FreeRTOS startup
The purpose of this group is to foster exchange of information on the Texas Instruments MSP430 family of microcontrollers and related tools. Everyone welcome, all levels of familiarity/expertise.
Measuring FreeRTOS startup - "Naveed A. Abbasi" - Aug 4 23:09:16 2009
Hello
I am using MSP430F1611 based nodes running FreeRTOS in my assignment. These nodes have a cc2420 radio.
Can anyone please advise me how to measure the start up time of these nodes? or proper place to put markers? I am measuring with oscilloscope and by the time I blink first led (main.c -> initPort -> blinkLed), almost 70~100 ms are already passed. Now I am curious where this time is spent.
Hints/literature suggestions are also welcome.
Regards,
Naveed
------------------------------------
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I am using MSP430F1611 based nodes running FreeRTOS in my assignment. These nodes have a cc2420 radio.
Can anyone please advise me how to measure the start up time of these nodes? or proper place to put markers? I am measuring with oscilloscope and by the time I blink first led (main.c -> initPort -> blinkLed), almost 70~100 ms are already passed. Now I am curious where this time is spent.
Hints/literature suggestions are also welcome.
Regards,
Naveed
------------------------------------
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Re: Measuring FreeRTOS startup - old_cow_yellow - Aug 4 23:16:19 2009
Use a debugger or something to examine address 0xFFFE-0xFFFF. This is the reset vector
that points to the first instruction to be executed at power up or after reset. Follow the
instructions from that point on and that is how the CPU does ever time to start up.
--- In m...@yahoogroups.com, "Naveed A. Abbasi" wrote:
>
> Hello
>
> I am using MSP430F1611 based nodes running FreeRTOS in my assignment. These nodes have a cc2420 radio.
>
> Can anyone please advise me how to measure the start up time of these nodes? or proper place to put markers? I am measuring with oscilloscope and by the time I blink first led (main.c -> initPort -> blinkLed), almost 70~100 ms are already passed. Now I am curious where this time is spent.
>
> Hints/literature suggestions are also welcome.
>
> Regards,
> Naveed
>
------------------------------------
______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
--- In m...@yahoogroups.com, "Naveed A. Abbasi"
>
> Hello
>
> I am using MSP430F1611 based nodes running FreeRTOS in my assignment. These nodes have a cc2420 radio.
>
> Can anyone please advise me how to measure the start up time of these nodes? or proper place to put markers? I am measuring with oscilloscope and by the time I blink first led (main.c -> initPort -> blinkLed), almost 70~100 ms are already passed. Now I am curious where this time is spent.
>
> Hints/literature suggestions are also welcome.
>
> Regards,
> Naveed
>
------------------------------------
______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )