Hi Erik > Is the IO for PTT & COS or what? We use the CM108 chip with Thelinkbox, > a multi-protocol VoIP client, and we can use the 4bit GPIO on the CM108 > for the PTT and other digital IO requirements. That could be propably a > good approach for you controller too, to get just a single wire from the > controller to a radio!
The CM108 is already supported and is a good option, but the K8055 allows for more flexibility as it has five input lines and eight output lines. It depends what you want to do of course, the I/O lines on the CM108 and serial port (spit) are a subset of the lines available on the K8055. > 73 > Erik OH2LAK Jonathan G4KLX
