HOST USB 2.0 compliance Test

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HOST USB 2.0 compliance Test

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TUNGJCM
Contributor I

Hello everybody !!!

I was assigned to implement Host USB compliance in board imx6q, but this is the first time. So I have a trouble, look forward to help.

This is electrical circuit :

キャプチャ.JPGキャプチャ.JPG

 On imx6q board, I used memtool to change register to enter Test mode. I had followed in 5367 page of imx6q reference manual documentation(Port Test Modes -Host Operational Model). But I had failed.

1. memtool -32 USBOH3.UH1_USBCMD.ASE=0 

    memtool -32 USBOH3.UH1_USBCMD.PSE=0 

2. memtool -32 USBOH3.UH1_PORTSC1.SUSP=1

3. memtool -32 USBOH3.UH1_USBCMD.RS=0

wait for read memtool -32 USBOH3.UH1_USBSTS.HCH to get 1

4. memtool -32 USBOH3.UH1_PORTSC1.PTC=1 (TEST J)

here I saw Oscilloscope and the wave completely unchanged.

Am I wrong somewhere or forgot about it?

Hope everybody help please !!! Thank you.

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