Dear Sir,
we used in the past color sensor with 8 bit YUV interface, and was easy to configure the video port to capture the frames, and to manage horizontal and vertical syncs...
No we need to capture a stream from a monochromatic sensor (8 bit Y ), the first idea was to use the RAW capture mode, but we are having a lot of problem to syncornize and capture correctly the frame ... So now as a patch we are using the YC (16 bit mode) so we feed the 8bit Y to half port and the toher half port is left unconnected (pulled high), and internally we just ignore the Croma data. and it works.... but:
1) with this method we have also the DMA of the chroma channel running, and if we disable it we have opermanently the FIFO overrun interrupt : so there is a way to disable the chrome channel without having the overrun in YC 16 bit capture mode
2) The correct mode anyway should be to use the RAW capture mode, but we need some suggestion on how to syncornize correctly the capture of the frame (Vsync, Hsync signals), we connected the Hsync to CAPEN , so it captures only when HSYNC is high.... but we have some problems to understand how the video port works in this mode,,,,, so any examples on how to use to capture a 8 bit Y (monochrome) stream.
Thanks