Marko Panger

Recovery time from SUSPEND and WAIt modes

Discussion created by Marko Panger on Mar 1, 2012

The i.MX5x PM driver supports different modes of low power operations.

I'm particularly interested in the:

- STOP mode which maps to "Suspend to RAM"

- WAIT mode which maps to "Standby" mode


Does anybody know what is the recovery time needed from the low poer modes listed above to full running mode ?


Our idea is to read an ADC value each 1s. If the value is below a certain threshold we get back to WAIT (or STOP mode depending of the staus of the external PSU) mode. Are such fast (1 second) transition times even possible ? Looking at the source there should be no limitations, except for some PLL setup times.


Any thoughts, comments ?