topic Re: How to enter SEMC SDRAM into low power in i.MX RT Crossover MCUs

How to enter SEMC SDRAM into low power

rjengr — Sat, 28 Sep 2024 01:06:41 GMT

We are using a imxrt106F, with VDD_HIGH_IN, SNVS_IN, and DCDC_IN tied together. However the issue we see is entering into SNVS does not automatically put the SDRAM into low power mode as our SDRAM is constantly powered. We are seeing very high power consumption. How can we put the SDRAM into low power mode?

Re: How to enter SEMC SDRAM into low power

Omar_Anguiano — Wed, 02 Oct 2024 18:37:37 GMT

If the SDRAM has a low power mode then you need to enter the command to send it to low power before setting the mcu at SNVS mode.

Ideally, SDRAM is powered-off on SNVS mode since external DC/DC(which powers SDRAM) is turned off.

Best regards,
Omar