How does the DCS and Decoder Function Digitiallygreenspun.com : LUSENET : Wiring for DCC : One Thread
How do you initialize a home made dcc decoder? Is there an executable program that goes into the decoder chip (16f84)or do you just put the right values into the CVs. I am literate on main frame computers but I am new to DCC and am having a hard time comparing the two. Such as CVs are just address in the decoder to me. Where does the operating program reside? Exactly what do the components do and how.
-- Robert Pujda (email@example.com), March 02, 2003
The "decoder chip" is not a decoder. It is a single chip microcomputer. The software program that it executes to cause it to act like a DCC decoder is pre-programmed at the decoder factory and retained in one-time-programmable internal memory.
If you simply copy the hardware circuit design to build one of your own it will have a blank memory and do nothing.
-- Don Vollrath (firstname.lastname@example.org), March 03, 2003.