Selecting USB port message loop

[JE-Tv1]

When I use the option to look for CMs attached to USB port, the Rpiboot continues to output "Loading embedded: bootcode.bin". I am currently using a raspberry pi 4 B to boot a CM3+ with CMIO.

Is there any way to not get these infinite messages and just like the usual blank waiting?

[PCSerra]

I have the same issue the tool at https://github.com/raspberrypi/usbboot/raw/master/win32/rpiboot_setup.exe on windows 10, trying to program a CM3+ via USB.

[stephenglynch]

Also have this issue on windows 10 with a CM4 via USB

[vanarebane]

TL:DR: Just use another USB port on the master device

Same issue here.

I have a 1G RAM, 8G eMMC without wifi module that works fine on the official IO board.

Then I have a 4G RAM, 8G eMMC with wifi that has the same loading loop as others here.

So only difference is the board, drivers and IO board is working.

EDIT: Alright, fixed the problem when reading the official guide:

Note There is a bug in the BCM2835 (CM1) bootloader which returns a slightly incorrect USB packet to the host. Most USB hosts seem to ignore this benign bug and work fine; we do, however, see some USB ports that don't work due to this bug. We don't quite understand why some ports fail, as it doesn't seem to be correlated with whether they are USB2 or USB3 (we have seen both types working), but it's likely to be specific to the host controller and driver. This bug has been fixed in BCM2837.

[salmanfarisvp]

@vanarebane can you share how you solved the issue?

Edit: Solved it by connecting a different USB Port

[vanarebane]

@salmanfarisvp that's right, just used another port. Maybe windows assigns some drivers to specific port? I have seen some other device drivers also fixed by switching ports

[salmanfarisvp]

@vanarebane Thanks 👍. I was using balena Fin v1.

[CrowntailTW0608]

I've the same issue and I removed all USB devices (including mouse) to solved the problem

[lenkapolaskova]

Hello, I have the same problem. Selecting another port does not solve the problem.

[cvabc]

Sample problem here on a windows 11 pc for cm4.

[timg236]

No response from OP. Closing.

N.B. We can't provide support for the multitude of Windows versions and USB versions. I recommend using a Raspberry Pi or Linux PC as the host and avoiding hubs.

[nerososft]

Sample problem here on a windows 11 pc for cm4.

me too

[carlonluca]

For those with the same problem in a VMWare machine, I solved by setting the USB to version 2 instead of 3 in the machine settings.

[bigttys0]

Data packets sent to and from the USB port must be exactly 8 bytes in size. Any packets sent with a size that is not 8 bytes will not be read correctly by the USB port and may cause errors or data loss. To ensure reliable communication between the USB port and the device, it is important to ensure the exact size of data packet is sent.

Or, use USB2.

[wangchaoHZ]

i have the same issue too，CM4 on Windows 10