Instruction manual

Guppy Technical ManualV7.4.0
258
Configuration of the camera
• The big endian byte order of the 1394 bus is unlike the little endian byte
order of common operating systems (Intel PC). Each quadlet of the local
buffer, containing the LUT data or shading image for instance, has to be
swapped bytewise from little endian byte order to big endian byte order
before writing on the bus.
Bit depth little endian  big endian Description
8 bit L0 L1 L2 L3  L3 L2 L1 L0 L: low byte
H: high byte
16 bit L0 H0 L1 H1  H1 L1 H0 L0
Table 130: Swapped first quadlet at address offset 0