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"Christian" == Christian Glindkamp [off-list ref] writes:
Hi,
>> So it doesn't really support RGB555 mode. The controller reads up to
>> 32bit of framebuffer data and outputs 24bit on the LCD pins. You CAN
>> wire up a RGB555 panel by just skipping the LSB green of a RGB565
>> wiring, but that is independent of the framebufffer format.
Christian> But the AT91SAM9261/AT91SAM9263 do not have a native RGB565
Christian> format if it is configured for 16bit (so it does not read
Christian> 32bit and output 24bit but just 16bit) but uses BGR555 with
Christian> an additional intensity bit in the MSB like the palette
Christian> where you also kept the BGR555 format. How can you get
Christian> correct colors on these processors if this code above is
Christian> removed?
I now had a look at the 9261/9263 datasheets, and don't find any
explicit mention of the bit layout of the 16bit/24bit modes. Just to be
completely sure:
- 16bit mode is IBGR-1555 (independently of little/big/wince mode?)
- 24bit is BGR-888 (packed) or XBGR-8888 (unpacked)
Right?
--
Bye, Peter Korsgaard