TDA4VM: dfu-util takes very long time to Reset Device

felix_123

Part Number: TDA4VM

Hi TI, when booting TDA4VM via USB BOOT Mode and using dfu-util to transfer images to TDA4VM board via these commands

sudo dfu-util -R -a bootloader -D tiboot3.bin
sudo dfu-util -R -a sysfw.itb -D sysfw.itb
sudo dfu-util -R -a tispl.bin -D tispl.bin
sudo dfu-util -R -a u-boot.img -D u-boot.img

the reset operation (-R) takes a very long time (around 45s) for each command. In specific, the command is stuck after printing "Resetting USB to switch back to runtime mode".

Is this an exepcted behaviour? Booting works fine, I am only curious about the reason behind the long timeout.

Thanks and best regards,

Felix

over 4 years ago

0 Karan Saxena over 4 years ago

TI__Guru* 77754 points

Hi Felix,

Are you running this on a VM or is this native linux machine?

Regards

Karan

0 felix_123 over 4 years ago in reply to Karan Saxena

Expert 1251 points

Hi Karan,

I am running this on a VM (VMware Workstation 15.5 Pro).

Best regards,

Felix

0 Karan Saxena over 4 years ago in reply to felix_123

TI__Guru* 77754 points

Hi Felix,

Can you check if changing the number of cores assigned to the VM changes this time?

Regards

Karan

0 felix_123 over 4 years ago in reply to Karan Saxena

Expert 1251 points

Hi Karan,

I changed the number of cores from 4 (max on my machine) to 2. This had no effect. The reset silll lasts around 45s.

Best regards,

Felix

0 Karan Saxena over 4 years ago in reply to felix_123

TI__Guru* 77754 points

Hi Felix,

I tried to do this on my side and I see just a couple of seconds after the transfer happens to reset the device "Resetting USB to switch back to runtime mode".

Could the large time for resetting be some issue with some settings on your VM?

Regards

Karan

0 Karan Saxena over 4 years ago in reply to Karan Saxena

TI__Guru* 77754 points

Hi Felix,

I tried to do this on my side and I see just a couple of seconds after the transfer happens to reset the device "Resetting USB to switch back to runtime mode".

Could the large time for resetting be some issue with some settings on your VM?

And you must be following section 4.2.1 of the appnote - https://www.ti.com/lit/an/spracy5/spracy5.pdf ?

Regards

Karan

+1 felix_123 over 4 years ago in reply to Karan Saxena

Expert 1251 points

Hi Karan,

I changed the "USB compatibility" in my Virtual Machine Settings from USB 3.1 to USB 2.0. With this change, I only have to wait a couple of seconds for the reset.

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TDA4VM: dfu-util takes very long time to Reset Device