Help in selecting an MSP430 with lots of memory

Kenneth Aquino

Other Parts Discussed in Thread: MSP430FR5994

I would like someone to suggest an MSP430 that would be ideal for my application.

The key thing is that I need to digitize audio data, compress it and store it in non-volatile memory (preferably on-board memory) for extraction later. I would like to store between 30 seconds and 3 minutes of audio 4 kHz audio data. For 3 minutes that would be approximately 720 kbytes of 8 bit memory. I figure with compression I might be able to reduce that to 128 kbytes, although I'm not sure.

Anyway, I need an MSP430 with about that much on-board memory. I would also like to use an MSP430 for which I can obtain a Launchpad eval board.

over 4 years ago

0 Lixin Chen1 over 4 years ago

TI__Expert 7015 points

Hi, Kenneth,

I would like to recommend MSP430FR5994 for your application. This device has 256kB FRAM memory size. The non-volatile memory FRAM can enable much faster writing than Flash, and the writing power consumption is also much lower than Flash. This can meet your requirement for the non-volatile memory to save the audio data.

The built-in ADC12Bit should be enough for the audio digitization.

In addition, MSP430FR5994 has a special module built in - LEA which is a 32-bit hardware engine designed for operations that involve vector-based signal processing, such as FIR, IIR, and FFT without CPU intervention. This powerful DSP module can help you to realize the audio compression easily.

There is an audio BoosterPack (http://www.ti.com/tool/BOOSTXL-AUDIO) you can refer to learn more about the LEA usage. Here is more material for LEA:

- http://www.ti.com/tool/MSP430-LEA-GUI?keyMatch=LEA&tisearch=Search-EN-Everything

- https://training.ti.com/low-energy-accelerator-lea-performance?keyMatch=LEA&tisearch=Search-EN-Everything

- http://www.ti.com/lit/pdf/slaa698

You can request the MSP430FR5994 Launchpad to evaluate it: http://www.ti.com/tool/MSP-EXP430FR5994

Best Regards,

Lixin

0 Lixin Chen1 over 4 years ago in reply to Lixin Chen1

TI__Expert 7015 points

Hi, Kenneth,

Does my answer help you to resolve your questions?

Best Regards,

Lixin

0 Kenneth Aquino over 4 years ago in reply to Lixin Chen1

Expert 1300 points

Hi Lixin,

Yes, beautifully!

Thanks,

Ken

0 Lixin Chen1 over 4 years ago in reply to Kenneth Aquino

TI__Expert 7015 points

Hi, Kenneth,

It is nice to hear from you about it.

If my post helped solve your issue, please click on the This resolved my issue button.

Thanks and Best Regards,

Lixin

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Help in selecting an MSP430 with lots of memory