Originally Posted by DanNsk
I have ATtiny12l , which is max 4mhz, can i use unmodified original code for this converter, or it needs to be changed, or unluckily i can not use that at all ?
The 4mhz spec is for use with very low voltage (1.8v). At 5v the chip runs at 8mhz and higher so there is no problem. In fact I've run them at 20mhz with xtl.
Also note this program is pretty much frequency indpendent. 8mhz will give about 300us gap which is close to real PPM.