Am 26.05.2013 04:47, schrieb Shane Burrell: > I originally, as well as others, have ported previous version of > codec2 and the hfmodem to the STMF4. I haven't attempted to use the > onboard 12 bit dac but instead used several different codecs. I > suspect that for direct hfmodem input the dac could be used but not > sure that would be needed since nice codecs are easy to integrate and > cheap. If you are looking for an easy solution any STM32F4 breakout > style board can easily be connected to a codec breakout board. I'm > currently using a waveshare board with phillips, several TI, and ws > codecs via I2S. The discovery board is not helpful since it has the > MMICS and separate line-out codec but it does work as there is a > project posted on github with a older codec2 port. I do have my own > design that integrates both a STM32F4 for codec2 and a AMBE 3000 > series dsp for a project I've been working on with DMR. I'm hoping > that the end project that is worked on will have ability to do raw > codec2 via USB, SPI, I2C, serial and ability to do multiple > modulations (HFModem, GSMK, C4FM) via I2S to a codec. Thats what I > have been working towards and what I have to assume gets it to the > point of a add-on board for radios, module for integrations, etc that > really puts codec2 on devices that are not full blown computers. So your're acutally working on a kind of ''upgrade solution'' for regular radios, enabling Codec2 on those that only support analog signals... Like a box that can be asily connected between mic, speaker and the radio itself? If so, this is EXACTLY what I'm looking for ... I would like to use it on a different project, too... with some modifications... ( see http://cryptofon.net/ ) > > > On Sat, May 25, 2013 at 10:10 PM, Bruce Perens <[email protected] > <mailto:[email protected]>> wrote: > > On 5/25/2013 6:19 PM, Shane Burrell wrote: > > I've settled on the stm32f4 as it has the MIPS and peripheral > support. I also have had good luck with am3517 and the stellaris > you mentioned as a full Linux setup. Ideally with the stm32f4 I > hope to take the work David is doing with current codec2 and have > a hardware module. > > > David hasn't ported the HF modem, and hasn't made any of the on-chip > peripherals work. And I am not clear that 12 bits is enough for the > modem output. So there is still lots of work to do, and maybe some > additional hardware necessary. > > > ------------------------------------------------------------------------------ > Try New Relic Now & We'll Send You this Cool Shirt > New Relic is the only SaaS-based application performance > monitoring service > that delivers powerful full stack analytics. Optimize and monitor your > browser, app, & servers with just a few lines of code. Try New Relic > and get this awesome Nerd Life shirt! > http://p.sf.net/sfu/newrelic_d2d_may > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > <mailto:[email protected]> > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > > > > ------------------------------------------------------------------------------ > Try New Relic Now & We'll Send You this Cool Shirt > New Relic is the only SaaS-based application performance monitoring service > that delivers powerful full stack analytics. Optimize and monitor your > browser, app, & servers with just a few lines of code. Try New Relic > and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_may > > > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > > > --- > avast! Antivirus: Eingehende Nachricht sauber. > Virus-Datenbank (VPS): 130526-0, 26.05.2013 > Getestet um: 26.05.2013 13:23:16 > avast! - copyright (c) 1988-2013 AVAST Software. > http://www.avast.com > > > >
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