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[OMAP3503] USB Not detected after SYS_nRESPWRON applied

Other Parts Discussed in Thread: OMAP3503, TPS65950

Hi,

In our application OMAP3503 and TPS65950 is used with TPS USB PHY used as device interface. A manual reset switch is connected to SYS_nRESPWRON.

When the reset is applied with USB connected to TPS65950, the OMAP gets reset and boots up. After booting the USB interface is not getting detected by the host PC. If the USB cable is removed and connected again, then the USB is getting detected.

When the reset is applied with the USB disconnected condition of TPS65950, after booting the USB interface is detected if the USB is connected.

The same issue is observed in the ZOOM SOM module also. Can you please clarify what could be the problem.