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Author Topic: how can I use this MSM5205 with a PIC  (Read 2870 times)
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gianmagna
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« on: February 21, 2014, 10:55:08 22:55 »

I have several integrated MSM5205 ADPCM of OKY and would like to use them with the pic 18f2520 or another
Is there anyone who knows how to use this chip to play audio files.
I thank anyone give me some help.


http://www.datasheetarchive.com/MSM5205-datasheet.html
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Wilksey
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« Reply #1 on: February 22, 2014, 02:20:35 14:20 »

The chip accepts a 4-bit ADPCM input, and you can use this:
http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en011118

As a reference, there is an encoder which generates the 4-bit ADPCM needed, you just need to adapt the code to output the bits to the speech chip.

Wilksey
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gianmagna
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« Reply #2 on: February 22, 2014, 02:29:46 14:29 »

thanks Wilksey at least I have a reference to go
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