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.
On Sat, May 25, 2013 at 10:10 PM, Bruce Perens <[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]
> 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
