From 14efeab738da9c30e988d14b8407eb16afc9caba Mon Sep 17 00:00:00 2001 From: David Schmenk Date: Thu, 27 Apr 2017 20:52:35 -0700 Subject: [PATCH] Add note duration section --- src/samplesrc/a2pwm/readme.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/samplesrc/a2pwm/readme.md b/src/samplesrc/a2pwm/readme.md index 68d9910..c7b5960 100644 --- a/src/samplesrc/a2pwm/readme.md +++ b/src/samplesrc/a2pwm/readme.md @@ -22,7 +22,9 @@ The Apple II keyboard is mapped to a one octave piano keyboard, from Bn-1 to Cn+ I A#n K Bn L Cn+1 - + +The duration of the note is in increments of 0.0255 seconds (the PWM loop is 100 cycles and runs 255 times at ~1.022 MHz). The maximum note length is slight longer than 1 second. + ## Command keys KEY COMMAND -------------- --------------------