This is a tiny release making 2 backwards-compatible bootloader changes to:

• Allow user bitstreams to load things from thumbdrives into psram before they start (i.e - without needing to spin up the USB core themselves). An example of this is added in src/top/wavplay.
  • wavplay is a toy example - for real thumbdrive audio action, see https://github.com/apfaudio/tiliqua/issues/179 which is available for testing but still being worked on.
• Add support for apfbug/rp2040 newer than beta5 (whilst retaining support for older versions).
  • You may (optionally) update your rp2040 firmware to beta6 by using the build here

What's Changed:

• top/bootloader: add i2c-driven bitstream reconfiguration used by rp2040/apfbug > beta5 (backwards compatible)
• top/bootloader: add UsbLoad region support by @vk2seb in https://github.com/apfaudio/tiliqua/pull/177

Full Changelog: https://github.com/apfaudio/tiliqua/compare/v1.2.2...v1.3.0

Patch release mostly to bring in the video robustness fix from https://github.com/apfaudio/tiliqua/pull/182 before I flash a bunch more devices.

What's Changed

• mode line config for the "52Pi 7 Inch HDMI IPS Display" by @matpalm in https://github.com/apfaudio/tiliqua/pull/168
• docs/dsp: improve docstrings for effects, filters, library overview by @vk2seb in https://github.com/apfaudio/tiliqua/pull/169
• top/polysyn/tusb322i: enable VBUS when enumerating as Accessory/DebugDfp by @vk2seb in https://github.com/apfaudio/tiliqua/pull/171
• top/polysyn/tusb322i: disable DFP terminations if usb-host option is off by @vk2seb in https://github.com/apfaudio/tiliqua/pull/175
• top/polysyn: add hardware MIDI channel filter on TRS/USB by @vk2seb in https://github.com/apfaudio/tiliqua/pull/174
• README: add CONTRIBUTING.md and AI policy by @vk2seb in https://github.com/apfaudio/tiliqua/pull/172
• pyproject/ci: bump amaranth to 0.5.8, update python dependency tree by @vk2seb in https://github.com/apfaudio/tiliqua/pull/176
• skeleton pmod tute content by @matpalm in https://github.com/apfaudio/tiliqua/pull/178
• top/bootloader: improve video lock robustness by @vk2seb in https://github.com/apfaudio/tiliqua/pull/182

Full Changelog: https://github.com/apfaudio/tiliqua/compare/v1.2.1...v1.2.2

Flashing instructions here

Compared to v1.2.0:

• all: unify beam decay/persist logic, reduce flickering and 'sweeping' effect at long decay times (PR #165)
• sampler/GateDetector: increase detection threshold 2V -> 4V to squash ghost triggers

Full Changelog: https://github.com/apfaudio/tiliqua/compare/v1.2.0...v1.2.1

Flashing instructions here

Compared to v1.1.x:

Features

• Adds TRS MIDI CC mappings to xbeam.
• Adds a MIDI clock output on out2 to polysyn
• Adds a MIDI-controlled 4-in/4-out matrix mixer bitstream (audio only)
• Changes the Polysyn CV in1/in2 to be bipolar rather than unipolar
• xbeam now has an 'x-zoom' control in the scope mode, which can be useful for filling the screen on 16:9 displays.
• Improve help strings in polysyn/xbeam to include all CC mappings / description.

Bugfix

• Fixes some bugs with how MIDI was handled in polysyn, also remapping its CCs
• Performance improvements under CC control (they shouldn't lag the UI any more)
• Fixes a bug in xbeam where sometimes the scope would start far to the left of the screen.
• Fix a bug in the docs where the bitstream docs were repeated twice

Changes

• top/dsp: add MidiMatrixMixer example by @vk2seb in https://github.com/apfaudio/tiliqua/pull/159
• tiliqua/midi: refactor usb/serial midi decoding library by @vk2seb in https://github.com/apfaudio/tiliqua/pull/161
• polysyn/xbeam: minor improvements by @vk2seb in https://github.com/apfaudio/tiliqua/pull/162
• top/xbeam/polysyn: add/improve/document CC mappings by @vk2seb in https://github.com/apfaudio/tiliqua/pull/163

Full Changelog: https://github.com/apfaudio/tiliqua/compare/v1.1.0...v1.2.0

Flashing instructions here

Minor bugfix, see v1.1.0 changelist for details on the last feature update.

This release fixes 2 issues with release tagging (mostly required for webflasher improvements):

• All bitstreams with static video modes are now built twice, once for 720x720 (round screen) and once for 1280x720 (ext. monitor)
• Bitstreams built in CI sometimes had the -d 'dirty' version tag appended, because .env.toolchain wasn't ignored properly

Full Changelog: https://github.com/apfaudio/tiliqua/compare/v1.1.0...v1.1.1

Flashing instructions here

Notes (for users)

• feature/xbeam: lots of improvements - for all changes see notes on this PR
• feature/polysyn: lots of new stuff - in short:
  • adjustable waveform, waveform processing, ADSR, LFO settings
  • CV-controllable phase, cutoffs, and drive up to audio rate
  • Most parameters now MIDI-CC controllable see docs
• feature/sampler: new bitstream sampler - which can be a granular sampler / beat slicer / slewable delay line. See docs for details
• bugfix: occasional video glitches when switching bitstreams
• bugfix: USB host walks MIDI device descriptors more reliably
• bugfix: sustain pedal support
• bugfix: bootloader error strings don't collide with other UI elements
• bugfix: fix calibration bugs when compiling with wider native sample rates (e.g. > 16 bits)

Details: merged since v1.0.0:

• timing/bootloader: cut timing, reduce bitstream switching video glitches by @vk2seb in https://github.com/apfaudio/tiliqua/pull/139
• ci: dockerize most jobs, add minimal bitstream build on windows and osx by @vk2seb in https://github.com/apfaudio/tiliqua/pull/140
• docs: add quickstart / manual sections and diagrams for all SKUs by @vk2seb in https://github.com/apfaudio/tiliqua/pull/141
• top/beamrace: add some example beamracing video cores by @vk2seb in https://github.com/apfaudio/tiliqua/pull/142
• dsp/dwo: add Digital Waveguide Oscillator implementation by @vk2seb in https://github.com/apfaudio/tiliqua/pull/143
• docs: start on gateware tutorials by @vk2seb in https://github.com/apfaudio/tiliqua/pull/144
• mac/ringnoc: refactor and document DSP tile sharing utilities by @vk2seb in https://github.com/apfaudio/tiliqua/pull/145
• docs: start on tutorial 2 (Lorenz Attractor) by @vk2seb in https://github.com/apfaudio/tiliqua/pull/146
• test/usb: improve usb_host integration test by @vk2seb in https://github.com/apfaudio/tiliqua/pull/147
• top/usb_host: migrate to standalone guh (gateware USB host) by @vk2seb in https://github.com/apfaudio/tiliqua/pull/150
• dsp/periph: add GrainPlayer DSP core and SoC peripheral by @vk2seb in https://github.com/apfaudio/tiliqua/pull/151
• top/sampler: Add 3-channel sampler with CV+touch control. by @vk2seb in https://github.com/apfaudio/tiliqua/pull/152
• top/sampler: grab-bag of improvements by @vk2seb in https://github.com/apfaudio/tiliqua/pull/153
• top/xbeam/selftest: grab-bag of improvements by @vk2seb in https://github.com/apfaudio/tiliqua/pull/154
• top/polysyn: rewrite VoiceBlock, add ADSR and waveform options by @vk2seb in https://github.com/apfaudio/tiliqua/pull/157
• opts/polysyn: add cc mappings, phase lfo by @vk2seb in https://github.com/apfaudio/tiliqua/pull/158

Full Changelog: https://github.com/apfaudio/tiliqua/compare/v1.0.0...v1.1.0

What's Changed

• ci: dockerize most jobs, add minimal bitstream build on windows and osx by @vk2seb in https://github.com/apfaudio/tiliqua/pull/140
• docs: add quickstart / manual sections and diagrams for all SKUs by @vk2seb in https://github.com/apfaudio/tiliqua/pull/141
• top/beamrace: add some example beamracing video cores by @vk2seb in https://github.com/apfaudio/tiliqua/pull/142
• dsp/dwo: add Digital Waveguide Oscillator implementation by @vk2seb in https://github.com/apfaudio/tiliqua/pull/143
• docs: start on gateware tutorials by @vk2seb in https://github.com/apfaudio/tiliqua/pull/144
• mac/ringnoc: refactor and document DSP tile sharing utilities by @vk2seb in https://github.com/apfaudio/tiliqua/pull/145
• docs: start on tutorial 2 (Lorenz Attractor) by @vk2seb in https://github.com/apfaudio/tiliqua/pull/146
• test/usb: improve usb_host integration test by @vk2seb in https://github.com/apfaudio/tiliqua/pull/147
• top/usb_host: migrate to standalone guh (gateware USB host) by @vk2seb in https://github.com/apfaudio/tiliqua/pull/150
• dsp/periph: add GrainPlayer DSP core and SoC peripheral by @vk2seb in https://github.com/apfaudio/tiliqua/pull/151
• top/sampler: Add 3-channel sampler with CV+touch control. by @vk2seb in https://github.com/apfaudio/tiliqua/pull/152

Full Changelog: https://github.com/apfaudio/tiliqua/compare/v1.0.1...v1.0.2

Minor release - after flashing 50 Tiliquas, I discovered some PLLs lock a bit slower than others, which caused more video glitches when switching bitstreams. This release fixes this by always holding the DVI PLL in reset across switches, and also improves timing a bit along the way.

What's Changed

• timing/bootloader: cut timing, reduce bitstream switching video glitches by @vk2seb in https://github.com/apfaudio/tiliqua/pull/139
• bootloader/tiliqua_soc: fix dangling fb.enable reset after adding PLL reset (https://github.com/apfaudio/tiliqua/commit/505dcaeacbdf7c50e2dd5eb06d5d43589b9a8779)

Note: On the first 50 units I only re-flashed the bootloader as that is where these changes actually make a difference, so some have bootloader v1.0.1 and user bitstreams v1.0.0.

Attached are all bitstreams built for all existing hardware platforms. plus a bonus one that wasn't quite ready to merge yet

Full Changelog: https://github.com/apfaudio/tiliqua/compare/v1.0.0...v1.0.1

First 'production' release (this suite of bitstreams will be flashed to CS R5 Tiliquas). Includes built-in help pages on most SoC bitstreams.

I was tempted to call this v0.1.0, but given that from this release onward, it will be important to track breaking changes in the bootloader / manifest system per semantic versioning, it's probably best to start with v1.0.0 and bump the major version on any breaking manifest / bootloader changes.

Attached are all bitstreams built for all existing hardware platforms. _{^{plus a bonus one that wasn't quite ready to merge yet}}