USB OTG Wakeup

1258021

Genius 5120 points

Other Parts Discussed in Thread: DM3730, SYSCONFIG, TPS65950

Hi,

We are using DM3730.

We have implemented a I/o Wakeup for the system.

Now, I want to wakeup the system based on USB OTG.

So, when I plugin cable to host PC I am expecting the system to wake-up. Is it how the wake-up functionality works on USB OTG port in Function mode?

The following steps are followed before entering into suspend of the system.

OTG_SYSCONFIG[4] = 1;

PM_MPUGRPSEL1_CORE[4] = 1; PM_WKEN1_CORE[4] = 1; PRM_IRQENABLE_MPU[0] = 1

Please let me know if the steps that I am following are correct.

Regards,

GSR

0 Cvetolin Shulev-XID over 12 years ago

Hi,

Could you specify which software and version you are using. It could be useful to analyze the issue.

Tsvetolin Shulev

0 1258021 over 12 years ago in reply to Cvetolin Shulev-XID

Genius 5120 points

Hi Tsvetolin,

Thank You for the reply.

It is a customized Windows CE 6.0 software.

We are using DM3730 + TPS65950.

PMIC_INT1 is connected to SYS_NIRQ available on DM3730.

In TPS65950 we are writing a value of 0xFB to PWR_IMR1 and USB_INT_EN_RISE is set to a value of 0x1F.

Before entering into suspend SYS_NIRQ interrupt on processor side is enabled.

Regards,

GSR

Processors forum