From: Nizamov Shawkat <[email protected]> Reply-To: <[email protected]> Date: Wednesday, January 22, 2014 at 11:50 AM To: <[email protected]> Cc: <[email protected]> Subject: [beagleboard] Re: Vision on DSP
> Hi, > > You will be able to get at most 150 MHz pixel rate with 8 bit, 75 MHz with > 12-bit (it is actually 16 bit) - these are maximal ratings according to > datasheet. So with mt9p031 it is possible to get the full frame rate - it > means 5 megapixels @15 fps. But getting the frames and processing them are > quite different stories. The maximal memory bandwidth you can achieve in > software processing (carefully using neon, cache alignment and prefetch) is in > the range of 500-700 mb/s, with non-optimized access it is going to drop down > to 200-300 mb/s. I have no idea what is with DSP, but pretty much sure that it > will not be faster. Besides, DSP does not come readily usable. If you are not > specifically bound to using Beagleboard XM, I would suggest to use something > else - e.g. there exist imx6 boards with serial and parallel camera ports. The best solutions for camera processing is OMAP5 [1] because it has RPMSG support in mainline so you can use the DSP for image processing. Supports single or dual MIPI CSI-2 camera. [1] http://www.svtronics.com/index.php?route=product/product&product_id=33 [2] http://www.ti.com/tool/omap5432-evm Regards, John > > > Best regards, > Shavkat > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
