We are currently working on a i.mx6D custom board and have come across a very strange issue.
Perhaps someone who is using this processor can shed some light.
In all documentation we have seen, it is suggested to bridge VDDARM23_CAP to ground when using the DUAL version of the i.mx6 processor (i.mx6D).
Upon initial board bring-up we found that the processor power usage and temperature are unstable and very high. With R23 in place, the processor uses double the power and reaches the trip temperatures within a minute with no load.
It was determined that only by removing the suggested ground connection (by removing R23 in the attached schematic) could the processor stabilize and reach a useable state. This is in conflict with the suggested layout for the i.mx6D.
Currently running 2GB ddr31600.
Does anyone have any experience with this issue?
I am working on optimizing temperature and power usage. Can anyone clarify how they are using the DUAL processor?