10-10-2017 03:36 AM
Does anybody have experience in supporting DDR2 with SO-DIMM socket on KC705 evaluation board.
DDR2 requires power supply to be 1.8V. I have tried to increase power supply voltage (which is 1,5V by default for the support of DDR3) to be 1.8V, programming power controller from TI, responsible for formation of power rails, but the highest value I was able to get was 1.6V.
I am using TI USB-to-GPIO adapter, and TI Fusion Power Designer software, to program the voltage levels.
Thank you in advance,
10-10-2017 04:02 AM
10-10-2017 04:05 AM
10-10-2017 05:15 AM
Thank you for your answers.
I guess the problem is in the power controller, which checks for the output voltage to be in some limits.
Is there a way to increase the limits, so that it will be possible to have voltage higher than 1.6V? I checked the schematics fro the KC705 board, and seems, the VCC1V5_FPGA power rail is used only for the Banks 32, 33, 34 and LCD, so it should not damage any internal circuits.
10-11-2017 09:44 AM