38 Commits

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Author	SHA1	Message	Date
Stuart Longland	2fe3ea766c	fifo: Drop unused library	2017-04-09 10:53:57 +10:00
Stuart Longland	17599177cb	ports/attiny85: Looping sound effects. ... It sounds like the crappiest doorbell you've ever heard, but we now get a crude "ding dong" effect with this code, on a loop.	2017-04-09 10:17:49 +10:00
Stuart Longland	7214ae7d78	synth: Make enable/mute bits volatile. ... Otherwise the optimiser doesn't bother to re-check them.	2017-04-09 10:17:09 +10:00
Stuart Longland	fb59c52b71	ports/pc: Start playback when enable ≠ 0. ... After configuring the voices, we start playback until all channels stop.	2017-04-09 10:13:29 +10:00
Stuart Longland	ba7d0598c9	synth: Turn off channels that are "done".	2017-04-09 10:07:27 +10:00
Stuart Longland	dd483630d7	voice: Add test for voice channel done.	2017-04-09 10:07:10 +10:00
Stuart Longland	57769d477a	adsr: Add debugging	2017-04-09 10:06:38 +10:00
Stuart Longland	5855eb3da0	adsr: Add test for "ADSR done" event.	2017-04-09 10:06:11 +10:00
Stuart Longland	093b6dd888	ports/attiny85: Set sample rate to 8kHz	2017-04-09 09:17:28 +10:00
Stuart Longland	3f7c6353c1	ports/attiny85: Remove debugging #if blocks	2017-04-09 09:17:04 +10:00
Stuart Longland	b1ddd0c099	ports/attiny85: Define program target	2017-04-09 09:16:50 +10:00
Stuart Longland	38bf5a4261	Makefile: Remove .dep output definitions. ... This confuses `make` and it winds up telling `gcc` to write the compiled binary to the `.dep` output.	2017-04-09 09:09:53 +10:00
Stuart Longland	9bba7c0c19	ports/attiny85: Work in progress ATTiny85 port	2017-04-09 08:24:14 +10:00
Stuart Longland	301f5d0b8c	fifo: Add FIFO buffer library	2017-04-09 08:23:52 +10:00
Stuart Longland	9f3cd37109	ports/pc: Set default target in Makefile	2017-04-09 08:23:33 +10:00
Stuart Longland	4bad2a4c91	Makefile: Re-work build system ... Running `make PORT=...` should be all that's required to build one of the ports.	2017-04-09 08:22:54 +10:00
Stuart Longland	67bf582ee4	adsr: Add functions for configuring the ADSR.	2017-04-09 08:17:03 +10:00
Stuart Longland	286caebd67	adsr: Consider sustain time in initialisation.	2017-04-09 07:45:32 +10:00
Stuart Longland	54f47795ac	waveform: Fix logic errors in triangle synthesis	2017-04-09 07:26:16 +10:00
Stuart Longland	aff9a6c00b	waveform: Flip phase of sawtooth wave.	2017-04-09 07:22:32 +10:00
Stuart Longland	6f7749c0fb	waveform: Increase step to 16-bits. ... Integer overflow was breaking sawtooth output.	2017-04-09 07:19:04 +10:00
Stuart Longland	2a9c5ac4dd	waveform: Fix square wave generation.	2017-04-08 22:02:02 +10:00
Stuart Longland	06199b7da8	pc/main: Tweak output	2017-04-08 21:53:12 +10:00
Stuart Longland	2236e9eda8	synth: Show channel output in debug	2017-04-08 21:53:00 +10:00
Stuart Longland	d7ae5000ca	adsr: Tweak attack/release envelope computation.	2017-04-08 21:52:27 +10:00
Stuart Longland	2281f8b0e3	voice: Debugging	2017-04-08 21:52:10 +10:00
Stuart Longland	ba94adbfd1	adsr: Fix attack envelope.	2017-04-08 21:41:02 +10:00
Stuart Longland	b77e364f53	adsr: Define "done" state	2017-04-08 21:40:49 +10:00
Stuart Longland	e24cf7376e	ports/pc: Debugging, bugfixes.	2017-04-08 20:56:03 +10:00
Stuart Longland	c512e5e6ef	synth: Add debugging	2017-04-08 20:55:47 +10:00
Stuart Longland	5c90525e01	waveform: Add debugging	2017-04-08 20:55:38 +10:00
Stuart Longland	c7accf26d9	adsr: Add debugging	2017-04-08 20:55:18 +10:00
Stuart Longland	30e11101c4	Makefile: Add LIBS, INCLUDES	2017-04-08 20:54:50 +10:00
Stuart Longland	90b100c23f	debug.h: Add debug helper	2017-04-08 20:26:45 +10:00
Stuart Longland	3dc6a8f55f	Add bin and obj directories.	2017-04-08 20:24:17 +10:00
Stuart Longland	be44d90dae	synth.h: Remove const keyword. ... `gcc` doesn't like me assigning it there.	2017-04-08 20:23:48 +10:00
Stuart Longland	35e7d5ed9a	Beginnings of separate ports.	2017-04-08 20:23:26 +10:00
Stuart Longland	84370bd932	ADSR-based synthesizer for microcontrollers ... Initial check-in.	2017-04-08 18:57:37 +10:00