Does anyone know anything about DDCMP and the 68302 chip. We have some sof tware that uses it in asynchronous mode over RS485 and we want to see if we can emulate the DDCMP behaviour on another product without the 68302 micro so that we can communicate with the existing product but from a new device with a different microprocessor.
The 68302 manual says that in asynch mode when it's looking for the start o f a message that it looks for one of SOH, ENQ or DLE characters. Since the se characters can occur within a message, merely searching for one of these characters isn't sufficient and it must be using a timeout as well but the 68000 manual doesn't say anything about that.
Does anyone know if it's possible to emulate DDCMP on a micro using an ordi nary uart?