Compute Through Power Loss FRAM Utility Now Available!

William Cooper

Other Parts Discussed in Thread: MSP-EXP430FR6989, MSP430FR5989

Doing something only possible on our ultra-low-power MSP430FRx FRAM microcontrollers, we created the Compute Through Power Loss (CTPL) software utility. This library enables saving of the CPU and peripheral states into FRAM memory, which opens up two new possibilities:

The expanded use of Low-power modes (LPMs) x.5 - reduces complexity and time associated with starting up from a low-power mode where system state is not traditionally retained
Intelligent system state restoration after power failure - shuts down gracefully and reduces current consumption and time on wakeup

This new utility leverages the speed and endurance of FRAM technology, providing simple APIs to enable this new functionality on any MSP430FR5x/6x microcontrollers.

Check it out in this TI Design featuring the new MSP-EXP430FR6989!

over 10 years ago

Mike Pridgen over 10 years ago

TI__Mastermind 21855 points

Hi William,

This is awesome! Thanks for posting!

Mike

Dennis Eichmann over 10 years ago

Guru 74080 points

William Cooper, the link gives me a 404 error.

Dennis

William Cooper over 10 years ago in reply to Dennis Eichmann

TI__Intellectual 2985 points

Corrected, thanks for letting me know!

Chuck Huber over 10 years ago

Prodigy 80 points

William,

I'm looking for the linker scripts in the CTPL distribution for the GNU linker. I'm using the 'FR5989, stand-alone tool chain, developing under linux.

Under src/ctpl/device/msp430fr5989, I found a linker script for IAR and one that looks like it's for TI's linker, but no .ld files.

Can you point me in the right direction to find this?

Thanks,

- Chuck

William Cooper over 10 years ago in reply to Chuck Huber

TI__Intellectual 2985 points

Hi Chuck,

Let me check on this and get back to you.

Regards,

Will

Brent Peterson over 10 years ago in reply to Chuck Huber

TI__Intellectual 1930 points

Hi Chuck,

Unfortunately the first release of CTPL does not provide support for the GCC compiler. It is on our long list of enhancements for the next release so definitely keep an eye out for it in the near future. If you would like to experiment with the library short term the source code is available and you are free to port it to GCC. The two components that would need to be ported from the TI compiler to GCC are the the linker files (placing all RAM data into FRAM with the exception of the stack) and the low-level assembly routine. The remainder of the source code is C and should be compatible with GCC.

Regards,
Brent

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Compute Through Power Loss FRAM Utility Now Available!