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Re: [Discuss-gnuradio] DV Dongle - AMBE USB Device

From: Jeff Brower
Subject: Re: [Discuss-gnuradio] DV Dongle - AMBE USB Device
Date: Thu, 20 Mar 2008 22:04:27 -0600


> This picture of the prototype shows it is a TI chip.
> http://www.moetronix.com/dvdongle/
> The problem is it may be a ROM or protected Flash version of the DSP
> chip.  I paid for a AMBE codec so I do not want to destroy the internal
> programming,

Yes it's probably a ROM'ed version, but it's only 100-pin so it's too small for 
or 54x device, unless much older.  My guess is a member of the C24x series, 
which has
onchip ROM or Flash, low-power enough to live off the USB, and some stern 

> However this could be used for another project using a TI DSP for a
> MELPe dongle.  The DV Dongle could be a defacto standard for external
> CODEC interfacing.

The Moetronix board/DSP could not be used, but a similar design with a TI DSP, 
interface, and Flash EEPROM is simple enough.  The problem with making it 
open would be NSA's export restrictions on MELPe.


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