TUSB8020B: EEPROM programming tool request

Tibor Tóth

Part Number: TUSB8020B

Tool/software:

Hi,

We are working on a prototype project with the mentioned USB hub. The datasheet suggests contacting TI for a programming tool and instructions.

Could you please provide me information about programming the OTP memory and the external EEPROM through the main USB port?
Is there an available programming software tool?

Thank you,

Tibor

8 months ago

0 Brian Zhou 8 months ago

TI__Guru*** 137815 points

Hi Tibor:

please accept my friendship request and I will send programming tools to you.

Best

Brian

0 Tibor Tóth 8 months ago in reply to Brian Zhou

Prodigy 10 points

Hi Brian,

Accepted your request.

Thanks,
Tibor

0 Brian Zhou 8 months ago in reply to Tibor Tóth

TI__Guru*** 137815 points

Hi Tibor::

please check your private message box.

Best

Brian

0 Noman Ahmed Shaikh 8 months ago

Prodigy 20 points

Hi Brian ZhouI am Tibor's colleague and trying to use the EEPROM Programmer SW. However, even when I have the board connected, and start the software, it says, "No attached TUSB840 device was found. This program will now exit".

Although the SW title says TUSB80xx, the guide included says TUSB804x. So are you sure that's the correct SW?

0 Brian Zhou 8 months ago in reply to Noman Ahmed Shaikh

TI__Guru*** 137815 points

6253.Forcing a USB hub into Programming Mode (1).pdf

please try to force hub into program mode.

Best

Brian

0 Noman Ahmed Shaikh 8 months ago in reply to Brian Zhou

Prodigy 20 points

Thanks Brian Zhou I did that, and could start the SW. I could verify that it's the correct drive, through PID and VID.

But I see all Data values as 00s.

Als if I click Read, I don't get any errors, and the vaues stay as 00s.

If I change a value and click Write, I don't see errors. But I tried changing PID and VID but still the PID and VID of the device didn't change in the Info or in the Device manager. I also tried physically reconnecting, and power cycling the board after doing these changes, but the PID and VID didn't change.

Also, one weird thing, after I change a value and click Write, and then just as a test, try to save the file, it gets saved. but when I open the file, I do not see anything there it just has the headers.