Playing digitized sound files on the HP48G/GX

[Pierre95]

Quote:I just cant imagine it has been almost 21 years ago

But still does not look outdated...

Quote:You should port your great audio project to the HP Prime maybe didn't you ?

Unfortunately I don't own the Prime.

Everything gets easier when the CPU has an internal timer or one provided on the motherboard. This avoids creating software loop delays requiring a deterministic execution path (which is almost impossible when some interactions are about to occur).

The HP48G/GX has only timer1 and timer2. This last has a rate of 8192Hz which is too slow for modulating the pulse width... The delays shall be implemented through software.