CAS100 packet format

All packets in the CAS100 protocol are introduced by a single byte, which defines the basic purpose of the packet, and defines the kind of payload that follows it.

See the following sections for more information.

0x06 – Acknowledge packet

This packet is sent by the receiver to the sender to acknowledge reception of a header or data packet. It is a single-byte packet, i.e. it has no payload.

See Send data for more information.

0x13 – Established packet

This packet is sent by the receiver to the sender on initiation, in response to a 0x16 – Start packet. It is a single-byte packet, i.e. it has no payload.

See Initiate the connection for more information.

0x16 – Start packet

This packet is sent by the sender to the receiver on initiation. It is a single-byte packet, i.e. it has no payload.

See Initiate the connection for more information.

0x3A – Header and data packet

This header format covers headers used with the AlgebraFX / Graph 100. Such headers are 39-bytes long (excluding the basic purpose byte), but transferred at higher speeds.

See CAS100 data types for more information.

0x3E – Segment packet

Todo

This is used when requesting a 1024 byte sector, i.e. FRxx data type. Document this when encountered.