CMOS camera interface on ARM
GIGIN JOSE
gigin_jose at yahoo.co.in
Thu Jul 14 07:20:13 EDT 2011
Hi,
I am working on ARM9 based linux embedded system. I need to
interface a CMOS camera on the SoC. The processor I use is
samsung s3c2416, which does not have a camera interface.
The linux version I use is 2.6.21
With the standard resolutions(640*480) and fps
(~25 fps) configured on the camera, I am getting the
clock rates as below:
Master clock: 24 MHz
Pixel Clock : 8MHz
HSYNC : 20KHz
VSYNC : 25Hz
The Bit Resolution I use is 8bpp.
Using the regular interrupt lines (external interrupts),
will I be able to read the 8 bit camera data coming
with each pixel ? Can I do this with regular IRQ interrupt
or should I configure my interrupts to be FIQ ?
Is there any generic driver available for this
kind of interface in linux. What is the interrupt
latency if I configure the external interrupts in FIQ mode
and IRQ mode ?
Thank You
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