Hi, TI experts
We used AM3352 and DDR3 in several projects before, and mass-produced them in years
Recently, We have built a board with AM3352 and DDR3L.. This is the first time we use DDR3L.
We encounter the DDR error and random reboot issue in our system. This only happens when the LCD bus function is enable.
When we disable the LCD bus, the issue is gone. We have followed the latest EMIF document and spreadsheet to fine-tuned the parameters.
But it didn't fixed that. We have tried to turn the DDR power back to 1.5V, and then it worked well again.
We suspect that it might be the crosstalk in between LCD bus and DDR bus PCB.
But the LCD bus PINs of the IC are next to DDR DATA PINs, there is nothing we can do in the PCB layout.
I wonder if it's a known issue or something I can dig deeper?
-Andy