This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TUSB8041: Device enter DOWNLOAD mode NG through TUSB8041

Part Number: TUSB8041

HI Sir

We have plan to implement TUSB8041 solution in our project. we found a issue during our pre-validation.

The issue as belows:

Connected DEVICE, HUB, and PC as shown in the diagram,the device USB enumeration is OK.(Device is an Android board)

Then use the PC to send "adb reboot edl" command to DEVICE.normally,the USB enumeration will be redone,and the device will enter DOWNLOAD mode.

But we found HUBs will cause the device enter DOWNLOAD mode NG.

Without TUSB8041,device will re-enumeration and enter download mode normally.

Could you please teach me the reason?