Hi all
I wonder whether anybody who would have worked with BF533 based boards
like EZkit or Stamp has stumbled on an anomaly regarding PPI-dma width.
Though the hardware ref manual talks at length abt the PPI-DMA being
16-bit - the EZkit example from AD for Video Input - uses a 32-bit DMA
with packing enabled.
With the Video Input - they have played safe and used only 8-bit PPI-DMA .
Now I had tried with 32-bit DMA for output in my workspace and it
won't work - it was later that I realised that max width was 16-bits (
unlike BF561 upon which I'm usually working) - the video o/p worked
fine with 16-bit configuration.
Now I have been able to capture video using 32-bit width without
problems ( except for some stray frame track errors) - now if treat
the hardware ref manual as the statute, how is this possible.
And when I try capturing a half D1 - by capturing only one field - I
get color art-effects in the captured frame.
Can anybody throw some light on this.
-KV
