10-23-2014 06:24 AM
We are working on a low power profile device. We are using Linux operating system on Zynq 7000 with DDR3-L ram. Can we dynamically vary the DDR frequency on the fly to get a lower power scheme.
If possible any links mentioning how to implement it will be very helpful.
Thanks in advance.
10-23-2014 07:07 AM - edited 10-23-2014 07:14 AM
I hope you mean the DDR3 connected to PS -section, if yes I donot think its frequency can be varied on the fly
10-23-2014 07:20 AM
I don't think this is Xilinx specific. I don't think the DDR3 standard allows the frequency to be varied after boot.
10-24-2014 06:00 AM
Agressively putting the DDR into self-refresh mode may do more. Most power in consumed in transferring the data.