AnsweredAssumed Answered

iMX7 cannot enter LPSR mode when USB is connected

Question asked by Senthilkumar Chandran on Apr 18, 2018
Latest reply on Apr 20, 2018 by igorpadykov

Hi, 

We are working in a custom board with imx7d processor. In that we have implemented LPSR mode. Normally the board can enter LPSR mode and wake up using GPIO pin. But when a USB device is connected to the board, it enters deep sleep mode(Suspend to RAM) instead of LPSR mode. Also In mx7d-sabresd we got the same result.

 

Why the processor cannot enter LPSR mode when USB device is connected ? 

Has anyone faced issues like this ?

 

Please help us to resolve this issue.

 

Thanks in advance,

C.Senthilkumar

Outcomes