Common Message Layer (CML)

Generate code from protobufs

docker build -t cml:latest .

docker run -v $PWD:/usr/local/cml -it cml:latest /bin/sh -c 'cd /usr/local/cml && ./generate.sh'

Message Structure

Token HI	Token LO	Addr HI	Addr LO	Length HI	Length LO	CRC HI	CRC LO	CML Payload

CML Payload
Type	UNSPECIFIED, INFORM, GET, SET
Acknowledge	OUT, RETRY, IN, NACK
Timestamp	unsigned 64-bit integer, unix epoch in milliseconds
Time-to-live (TTL)	unsigned 64-bit integer, time in milliseconds
CML Inner Payload Type	Raw, Client, Device, Status
CML Inner Payload	bytes, see below

CML Inner Payloads
Raw	raw bytes or unspecified
Device	Config, status, generic digital, generic analog, accelerometer, gyroscrope, magnetometer, motor, location
Client	Config, status