[PD-dev] Porting Pd to FreeRTOS ( was Re: plans for next Pd release)

[Miller Puckette]

Yeah, AOO on RTOS will be cool!  For that we should drop bluetooth
in favor of some flavor of WIFI I think.

It's tricky getting everything to fit in 512K RAM - I think the new
ESP32S3 has the same memory size, so that will be the limiting aspect.

cheers
M

On Thu, Jul 15, 2021 at 12:09:45PM +0200, Winfried Ritsch wrote:
> Am Mittwoch, 14. Juli 2021, 18:03:32 CEST schrieb Miller Puckette via Pd-dev:
> > Cool, that's excellent news.  I'm using the ADF i2s audio driver but staying
> > away from their "streams" since they're too clunky (and they eat memory). I
> > have only audio, bluetooth serial emulation, and SD card filesystem, no
> > threaded readsf or networking (probably too memory-intensive again).
> > 
> Starting with the DIYasb [1], distributed streaming devices for field 
> recording and audio projections using Pd, want to include the AOO-Streaming 
> [2] functionality, already tested and used also for VRR [3] now for ESP32xx 
> devices, especially simple Ambisonics Mics and field-speaker for a future 
> project.
> 
> Doing simple streaming over WiFi, I did not get any trouble using opus lib, 
> but did no extensive processing until now and allowed enough latency for these 
> applications, but have to dig in deeper... not using bluetooth and waiting for 
> the ESP32S3...
> 
> > I had to go way out on a Pd branch to get it running, but I want to rebase
> > all that once I get the Pd source in better shape to support it.
> > 
> thats fine, please keep us updated.
> 
> mfG  Winfried
> 
> References
> 
> [1] https://urldefense.proofpoint.com/v2/url?u=https-3A__git.iem.at_cm_diyasb&d=DwICAg&c=-35OiAkTchMrZOngvJPOeA&r=XprZV3Fxus2L1LCw80hE4Q&m=1G1ft6Y7XaTqdv7GIbZgQevQVIh7dCEYyqblVJUOl8A&s=REqsW94KN3j1zmoTc8fuAzacKH95auw8rnFkm2yKquQ&e= 
> [2] https://urldefense.proofpoint.com/v2/url?u=https-3A__git.iem.at_cm_aoo&d=DwICAg&c=-35OiAkTchMrZOngvJPOeA&r=XprZV3Fxus2L1LCw80hE4Q&m=1G1ft6Y7XaTqdv7GIbZgQevQVIh7dCEYyqblVJUOl8A&s=2H_p8O28epbFdWYd9CdZKxGVaqQIKSEQwpA0UiSQg4c&e= 
> [3] https://urldefense.proofpoint.com/v2/url?u=https-3A__vrr.iem.at_&d=DwICAg&c=-35OiAkTchMrZOngvJPOeA&r=XprZV3Fxus2L1LCw80hE4Q&m=1G1ft6Y7XaTqdv7GIbZgQevQVIh7dCEYyqblVJUOl8A&s=uN5zUyzjx7xUPEbzK821HONeuQM_qgtNQWdVdA1c6lQ&e= 
> [4] https://urldefense.proofpoint.com/v2/url?u=https-3A__git.iem.at_uC_&d=DwICAg&c=-35OiAkTchMrZOngvJPOeA&r=XprZV3Fxus2L1LCw80hE4Q&m=1G1ft6Y7XaTqdv7GIbZgQevQVIh7dCEYyqblVJUOl8A&s=1r_RHEIuU6WoOrdkiSLsH21Z2Ybjm-GBtKKuX1P5Y2M&e= 
> 
> > cheers
> > Miller
> > 
> > On Wed, Jul 14, 2021 at 10:32:23AM +0200, Winfried Ritsch wrote:
> > > Hello,
> > > 
> > > > Before doing that I want to do some reorganizing - in porting Pd to
> > > > FreeRTOS (so I can run it on an Espressif LyraT board, which I think
> > > > takes only about 10 or 20% of the current that a Pi needs) I found out
> > > > that I had to move a few functions from one file to another.
> > > 
> > > That is really exciting news, since I do most physical project on ESP32xxx
> > > for distributed computermusic projects from speaker to robotic
> > > instruments.
> > > 
> > > So please let us know how it progress if you need for testing debug or
> > > other helps. Maybe can help with objects helping interfacing the
> > > Peripheral possibilities, from touch to solenoids drive...
> > > 
> > > Are you targeting the ESP-IDF/ESP-ADF framework ?
> > > 
> > > mfg winfried
> 
> 
> -- 
> - ao.Univ.Prof. DI Winfried Ritsch 
> - ritsch at iem.at - https://urldefense.proofpoint.com/v2/url?u=http-3A__iem.at_ritsch&d=DwICAg&c=-35OiAkTchMrZOngvJPOeA&r=XprZV3Fxus2L1LCw80hE4Q&m=1G1ft6Y7XaTqdv7GIbZgQevQVIh7dCEYyqblVJUOl8A&s=vgmXjpjGKuiTwOhEOGcejsNc7XHldqmmVbok4GFFvew&e= 
> - Institut fuer Elektronische Musik und Akustik
> - University of Music and Dramatic Art Graz
> - Tel. ++43-316-389-3510 (3170) Fax ++43-316-389-3171 
> 
> 
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