5 ms·
Anyone know if it would work on lower end microcontrollers like the Z80? I managed to use the TI-84+'s I/O port connected to a speaker to play simple tunes[0] u
by siraben 6y ago
Anyone know if it would work on lower end microcontrollers like the Z80? I managed to use the TI-84+'s I/O port connected to a speaker to play simple tunes[0] using a Forth program I wrote[1], but maybe I can exploit the hardware to modulate AM frequencies?
[0] https://photos.app.goo.gl/EumYVgyfMN1ncwkQ7 https://photos.app.goo.gl/EumYVgyfMN1ncwkQ7
[1] https://github.com/siraben/ti84-forth/blob/master/programs/music.fs https://github.com/siraben/ti84-forth/blob/master/programs/m...
- isoprophlex 6y agoI copied an assembly program off the net back in ~ 2000 that did AM audio on my TI83! So I'm positive it can be done..!
- siraben 6y agoDo you happen to have a link to it/recall the name? Sounds interesting!
- isoprophlex 6y agoincredibly enough, it's still on the web! https://www.ticalc.org/pub/83/asm/sound/ https://www.ticalc.org/pub/83/asm/sound/ I think you want 'songplay.zip', as it includes an X-files tune. This is probably the one I remember... From the readme: Here is a small song player on the TI-83 (the first I think). This works with an earphone plugged in the link-port (a piezzo buzzer, etc), or with an AM radio...
- siraben 6y agoThank you! Hopefully it can be adapted to run on the 84+.