28
Loading a LUT into the camera
Loading is done through the GPDATA_BUFFER data exchange buffer. Because the buffer
can hold only a maximum of 2 kB and is smaller than a complete LUT at 4096 x 16 bit
(8 kB), writing must take place in several steps:
Set
EnableMemWR
to true
Select
AccessLutNo
and confirm
LUT number
Write
GPDATA_BUFFER
in LUT databytes
Set
AddrOffset
to 0
Repeat
steps 5 to 7
until all data is written
Set
EnableMemWR
back to 0
Limits query
Read from registers
LUT_INFO
GPDA-TA_INFO
Check
EnableMemWR
and
AccessLutNo
for no change
Increase
AddrOffset
by n bytes
Figure 26 Loading a LUT