10-05-2018 02:01 PM
I'm looking to design a custom board around the Zynq 7010. I've been able to bring up a light distribution of Linux on the ZC702 Evaluation Board, but I'm not sure how much SDRAM-DDR3 is required as a minimum to get the distribution up and running.
Can anyone provide some information on this? Is there some documentation on this topic?
10-05-2018 05:48 PM
From UG1144, the minimum requirements include:
External memory controller with at least 32 MB of memory (required)
12-28-2018 11:51 PM
Basically DDR3 holds the Kernel Image and SPI flash controller holds the Boot Image
SPI flash required minim 2MB-5 MB, because uboot Imgae minium it takes 144KB (Not Bootstrap, bootstrap takes less than uboot Image).
DDR3 size based on how much kernel size , if it minimal kernel 16MB DDR3 also works fine, but in ARM boards , everything is memory mapped(I/O Device memory is part of RAM), so it takes minium 25MB size (Depends the connected I/O Devices).
If there are minimal peripherals , DDR3 size 16MB-25 MB works fine.
you if you have further questions, please feel free to contact me.
Thanks & Regards