AnsweredAssumed Answered

USB 2.0 Compliant Test In Hub Layer

Question asked by bo xu on Apr 15, 2019
Latest reply on Apr 18, 2019 by bo xu

Hello NXP,

 

I want to  set some registers to do the usb 2.0 compliant test. After I set the USBCMD and PORTSC registers with host1 controller core(The host1 core has connect to a High Speed HUB  with 4 downstream facing port), there had no correct signal on oscilloscope.

 

USBCMD = 0x00080B00

PORTSC = 0x1C041000(Test_Packet mode)

 

Had you ever configed registers to done the usb 2.0 compliant test?  Could you please help me. Thanks a lot.

 

 

Best Regards

 

bo xu

Outcomes