USB eye diagram

1330hayacool7102

Guru 10655 points

Hi TI-friends,

We got failure as testing USB eye diagram under high speed mode. The result is as below

we need your help to improve the result.

1. can we use the following register to improve that?

2. can we adjust the USB0_R1 as below to improve the USB driving?

Thanks in advance~~

0 1330hayacool7102 over 11 years ago

Guru 10655 points

hi TI-friends,

I try to set the register as below but always fail.

/mnt/APPS/opt/dvr_rdk/ti816x/bin # ./mem_rdwr.out --wr 0x48140624 4433F800

ORG 0x48140624: 44330800
NEW 0x48140624: 44330800

I try another register and it success to work

/mnt/APPS/opt/dvr_rdk/ti816x/bin # ./mem_rdwr.out --wr 0x46c00524 2

ORG 0x46c00524: 0
NEW 0x46c00524: 2

Did you have any idea about what's going up??

0 1330hayacool7102 over 11 years ago in reply to 1330hayacool7102

Guru 10655 points

by checking another document, we found there's lock bit as below.

How do we unlock the bit ??

0 1330hayacool7102 over 11 years ago in reply to 1330hayacool7102

Guru 10655 points

hello TI-friends,

did you have any idea?

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