C code for emulator between iambic paddle and morse keyer, AVR Butterfly
This is the code for the blog post "Single-lever and ultimatic adapter". http://la3za.blogspot.co.uk/2014/01/single-lever-and-ultimatic-adapter.html
Here is the main C-code routine for the adapter which has three modes: Input is a dual-lever paddle and it is used to emulate in
Keyer = 0: Direct mode, for direct coupling between input and output (i.e. iambic)
Keyer = 1: Ultimatic mode
Keyer = 3: Single-lever emulation