MSP430F437: FIR Low Pass Filter (also MSP430F449)

Victor Salomon

Other Parts Discussed in Thread: MSP430F449, MSP430F437, MSP-DSPLIB

Part Numbers: MSP430F437, MSP430F449

Hello team,

I have a support request regarding implementing FIR filters with MSP430F437 and MSP430F449. I am aware of 'Efficient MSP430 Code Synthesis for an FIR Filter' (SLAA357), and there is also the 'Digital Signal Processing (DSP) Library for MSP Microcontrollers' (MSP-DSPLIB).

Which one do you recommend to implement a 3 Hz Low Pass Filter?
What are the general trade-offs or limitations of using what's recommended in SLAA357 vs.the MSP-DSPLIB?

over 9 years ago

0 Ryan Brown1 over 9 years ago

TI__Guru**** 221527 points

Hello Victor,

I recommend using the MSP-DSPLIB since it is the most up-to-date resource and is still supported by the MSP430 team.

Regards,
Ryan

0 Victor Salomon over 9 years ago in reply to Ryan Brown1

TI__Expert 3910 points

Hello Ryan,

Thanks for your feedback, could expand on trade-offs or limitations of using SLAA357 vs.the MSP-DSPLIB?

Does the MSP-DSPLIB implement Horner’s method? and is there any examples available for either of these methods with MSP430F437 or MSP430F449?

0 Ryan Brown1 over 9 years ago in reply to Victor Salomon

TI__Guru**** 221527 points

Hi Victor,

I really cannot say since they are such different resources, neither of which I have worked with exclusively. The MSP DSP Library User's Guide does not mention Horner's method among supported design methods: software-dl.ti.com/.../gui_design.html

Both resources include examples that can be ported to any desired device derivative. I again recommend focusing on DSPLib.

Regards,
Ryan

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MSP430F437: FIR Low Pass Filter (also MSP430F449)