SAMA5 single DDR module?
Posted: Wed Nov 08, 2017 8:26 pm
Hi,
I did some work about measuring the power consumption of SAMA5D2 Xplained board, and I found there is 38mA @ VDD_5V in ultra low power mode.
I guess the major point is due to DDR power consumption in self-refresh mode.
There is a comparison table 3.3 in the document http://www.atmel.com/Images/Atmel-11291 ... n-note.pdf which give an actual data that DDR2 takes about 28.8mA @ 1.8V in self-refresh mode for each module.
So my question is: is it possible to use only one DDR2/DDR3 module with SAM-A5 solution if we can customize our board? is there any similar reference/evaluation board designed? How to modify the configuration of at91bootstrap & u-boot & at91-linux?
Thanks,
-Engin
I did some work about measuring the power consumption of SAMA5D2 Xplained board, and I found there is 38mA @ VDD_5V in ultra low power mode.
I guess the major point is due to DDR power consumption in self-refresh mode.
There is a comparison table 3.3 in the document http://www.atmel.com/Images/Atmel-11291 ... n-note.pdf which give an actual data that DDR2 takes about 28.8mA @ 1.8V in self-refresh mode for each module.
So my question is: is it possible to use only one DDR2/DDR3 module with SAM-A5 solution if we can customize our board? is there any similar reference/evaluation board designed? How to modify the configuration of at91bootstrap & u-boot & at91-linux?
Thanks,
-Engin