TDA4VH-Q1: USB2.0 and USB3.0 physical layer compliance test scripts

Hi TI Experts,

We have tried the below 3 commands provided in the below link.

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1221753/dra821u-usb-3-1-2-0-compliance-test-support?tisearch=e2e-sitesearch&keymatch=USB%2520physical%2520layer%2520compliance%2520test%2520on%2520Linux#

devmem2 0x06010480 w 0x000000A0

devmem2 0x06010080 w 0x00000004

devmem2 0x06010484 w 0x40000000

The corresponding report generated is shown below.  

Report_2023_09_27_16_36_38.pdf

As we could see from the report, only the J/K test is failed shown below. May I know any reason could make this error happen?

As the above suggested commands only have 3 commands, but we think normally we need 4 commands, so we use below 4 commands to generate this report, where the 1st and the 4th command are the same.

Force to output Test Packet forEye Diagram Test
devmem2 0x06010484 w 0x40000000

Force to output J_STATE
devmem2 0x06010480 w 0x000000A0

Force to output K_STATE
devmem2 0x06010080 w 0x00000004

Force to output SE0 (host) / NAK(device)
devmem2 0x06010484 w 0x40000000

Could you help provide any feedback for this problem please, thanks a lot!

Kevin

Hi TI Experts,

The failure test item described above needs to be tested when the host work is force to output SE0 mode(item f below) but currently we are not sure about the exact command for this mode.

We are currently using below command for the SE0 mode, but it will have failed test in the report.

Force to output SE0 (host) / NAK(device)
devmem2 0x06010484 w 0x40000000

May I know do we have feasibility to test item f in the above picture? If so, what will be the exact command to test it?

Thanks a lot!

Kevin

Hi Shreyas,

Thanks a lot for your information!

We have tried the command to be 0x30000000, and we could make it work now. 

The test also passed!

Thanks!

Kevin