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‎.gitignore

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# For PCBs designed using KiCad: http://www.kicad-pcb.org/
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# Format documentation: http://kicad-pcb.org/help/file-formats/
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# Temporary files
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*.000
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*.bak
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*.bck
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*.kicad_pcb-bak
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*.sch-bak
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*~
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_autosave-*
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*.tmp
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*-save.pro
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*-save.kicad_pcb
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fp-info-cache
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# Netlist files (exported from Eeschema)
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*.net
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# Autorouter files (exported from Pcbnew)
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*.dsn
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*.ses
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# Exported BOM files
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*.xml
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*.csv
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Firmware/build
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Firmware/openocd_picoprobe
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Hardware/gerber
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Hardware/tdm_*
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Enclosure/backplate_gerbers
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Enclosure/frontplate_gerbers
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Enclosure/temp
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*.pdb
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Enclosure/frontplate/frontplate-backups
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Enclosure/frontplate_gerbers.zip
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Hardware/kicad_project/tdm_v6-backups
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Hardware/gerber.zip
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Hardware/audcalc/audcalc-backups

‎Docs/ImageWithHeads.png

1.01 MB
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‎Firmware/.vscode/.cortex-debug.peripherals.state.json

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[{"node":"DMA","expanded":true,"format":0,"pinned":false}]

‎Firmware/.vscode/.cortex-debug.registers.state.json

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[]

‎Firmware/.vscode/launch.json

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{
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"version": "0.2.0",
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"configurations": [
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{
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"name": "Pico Debug",
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"type":"cortex-debug",
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"cwd": "${workspaceRoot}",
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"executable": "${command:cmake.launchTargetPath}",
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"request": "launch",
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"servertype": "external",
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// Connect to an already running OpenOCD instance
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"gdbTarget": "localhost:3333",
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"svdFile": "${env:PICO_SDK_PATH}/src/rp2040/hardware_regs/rp2040.svd",
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"runToMain": true,
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// Work around for stopping at main on restart
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//"postRestartCommands": [
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// "break main",
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// "continue"
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//]
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}
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]
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}

‎Firmware/.vscode/settings.json

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{
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// These settings tweaks to the cmake plugin will ensure
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// that you debug using cortex-debug instead of trying to launch
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// a Pico binary on the host
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"cmake.statusbar.advanced": {
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"debug": {
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"visibility": "hidden"
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},
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"launch": {
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"visibility": "hidden"
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},
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"build": {
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"visibility": "hidden"
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},
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"buildTarget": {
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"visibility": "hidden"
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}
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},
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"cmake.buildBeforeRun": true,
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"C_Cpp.default.configurationProvider": "ms-vscode.cmake-tools",
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"cmake.configureArgs": [
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"-D\"PICO_BOARD=TDM_BOARD\""
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],
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"cortex-debug.variableUseNaturalFormat": false,
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"files.associations": {
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"voice_data.h": "c",
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"random": "cpp",
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"*.tcc": "cpp"
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},
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"C_Cpp.dimInactiveRegions": false
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}

‎Firmware/.vscode/tasks.json

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{
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// See https://go.microsoft.com/fwlink/?LinkId=733558
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// for the documentation about the tasks.json format
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"version": "2.0.0",
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"tasks": [
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{
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"label": "build",
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"type": "cmake",
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"command": "build",
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"problemMatcher": [],
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"group": {
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"kind": "build",
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"isDefault": true
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}
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}
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]
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}

‎Firmware/ADSREnvelope.h

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// Copyright 2012 Emilie Gillet.
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//
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// Author: Emilie Gillet ([email protected])
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef TDM_ENVELOPE_H_
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#define TDM_ENVELOPE_H_
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#include "audio/dsp.h"
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#include "audio/resources.h"
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#include "pico/stdlib.h"
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namespace braids {
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using namespace stmlib;
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enum ADSREnvelopeSegment {
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ADSR_ENV_SEGMENT_ATTACK = 0,
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ADSR_ENV_SEGMENT_DECAY = 1,
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ADSR_ENV_SEGMENT_DEAD = 2,
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ADSR_ENV_NUM_SEGMENTS,
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};
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class ADSREnvelope {
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public:
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ADSREnvelope() { }
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~ADSREnvelope() { }
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void Init() {
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target_[ADSR_ENV_SEGMENT_ATTACK] = 65535;
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target_[ADSR_ENV_SEGMENT_DECAY] = 0;
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target_[ADSR_ENV_SEGMENT_DEAD] = 0;
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increment_[ADSR_ENV_SEGMENT_DEAD] = 0;
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priorValue_ = 0;
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}
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inline ADSREnvelopeSegment segment() const {
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return static_cast<ADSREnvelopeSegment>(segment_);
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}
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inline void Update(int32_t a, int32_t d) {
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increment_[ADSR_ENV_SEGMENT_ATTACK] = lut_env_portamento_increments[a];
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increment_[ADSR_ENV_SEGMENT_DECAY] = lut_env_portamento_increments[d];
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}
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inline void Trigger(ADSREnvelopeSegment segment) {
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if (segment == ADSR_ENV_SEGMENT_DEAD) {
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value_ = 0;
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}
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a_ = value_;
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b_ = target_[segment];
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priorValue_ = value_;
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segment_ = segment;
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phase_ = 0;
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}
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inline uint16_t Render() {
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uint32_t increment = increment_[segment_]>>7;
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phase_ += increment;
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if (phase_ < increment) {
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value_ = Mix(a_, b_, 65535);
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Trigger(static_cast<ADSREnvelopeSegment>(segment_ + 1));
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}
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if (increment_[segment_]) {
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value_ = Mix(a_, b_, Interpolate824(lut_env_expo, phase_));
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}
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return value_;
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}
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// returns the last exponential value
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inline uint16_t value() const { return value_; }
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inline uint16_t valueLin() const {
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return Mix(a_, b_, phase_>>16);
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}
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private:
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// Phase increments for each segment.
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uint32_t increment_[ADSR_ENV_NUM_SEGMENTS];
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// Value that needs to be reached at the end of each segment.
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uint16_t target_[ADSR_ENV_NUM_SEGMENTS];
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// Current segment.
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size_t segment_;
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// Start and end value of the current segment.
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uint16_t a_;
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uint16_t b_;
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uint16_t value_;
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uint16_t priorValue_;
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uint32_t phase_;
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DISALLOW_COPY_AND_ASSIGN(ADSREnvelope);
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};
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} // namespace braids
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#endif // BRAIDS_ENVELOPE_H_

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