Configuring the Camera4-6 Basler A500k SeriesPRELIMINARY4.2.1 Command Frame and Response FormatFigure 4-2: Representation of a Command Frame and ResponseSTX Identifies the start of the frame textSize = 1 Byte(The value of the STX byte is always 0x02)DESC DescriptorSize = 2 BytesThe bits in the descriptor are assigned as follows:The MSB of the descriptor is on the left (highest bit of the command ID) and the LSB ofthe descriptor is on the right (lowest bit of the data length).DATA Data fieldSize = Number of bytes indicated in the Data Length portion of the descriptor.BCC Block check characterSize = 1 ByteThe block check character is the exclusive-or sum (XOR sum) of the bytes in thedescriptor field and the data field.ETX Identifies the end of the frame textSize = 1 Byte(The value of the ETX byte is always 0x03)8 bits 1 bit 7 bitsCommand ID Read/Write Flag( 0 = write, 1 = read )Data Length(in Bytes)
