The Binary Read/Write Command Protocol - Basler A400K User Manual

Configuring the Camera

4.3.1 The Binary Read/Write Command Protocol

With the binary read/write command protocol, data is placed into a "frame" and sent to the camera.
When the frame is received, it is checked for validity. If valid, the data is extracted from the frame
and the command is executed.
This section describes the basic layout of a binary command frame. Figure 4-2 shows a graphical
representation of the fields within a binary command frame. The text below the graphic describes
each field of the command frame in detail.
Figure 4-2: Representation of a Command Frame and Response
BFS Binary Frame Start field
Identifies the start of a binary frame.
Size = 1 byte
The value of the BFS byte is always 0x01.
FTF Frame Type and Format field
Identifies the frame type and format.
Size = 1 byte
The bits in the FTF field are assigned as follows:
The MSB of the FTF field is on the left (highest bit of the opcode) and the LSB of the
field is on the right (lowest bit of the address length).
4-46
DRAFT
7 6 5
OpCode
4 3 2
BCC
Code
1 0
AddrLen
Basler A400k