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#143 USB dfu flashing issue on SK-AM62
Hi,
This is regarding the issue occurred while loading the rootfs file with extension .ext4 on the SK-AM62 E3 board through eMMC. I have attached the error logs below for the better understanding about the issue what we are exactly facing.
- After giving the following command below error logs was generated.
sudo dfu-util -a rootfs -D <your_rootfs.ext4>
Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2016 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to sourceforge.net/.../</your_rootfs.ext4>
dfu-util: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release!!!
Opening DFU capable USB device...
ID 0451:6165
Run-time device DFU version 0110
Claiming USB DFU Interface...
Setting Alternate Setting #1 ...
Determining device status: state = dfuIDLE, status = 0
dfuIDLE, continuing
DFU mode device DFU version 0110
Device returned transfer size 4096
Copying data from PC to DFU device
Download [= ] 5% 13631488 bytes failed!
state(10) = dfuERROR, status(14) = Something went wrong, but the device does not know what it was
- I have also attached the EVM UART console window logs below:
DOWNLOAD ... OK
Ctrl+C to exit ...
DOWNLOAD ... OK
Ctrl+C to exit ...
DOWNLOAD ... OK
Ctrl+C to exit ...
##########################################################Request would exceed designated area!
- The link which I have followed is also attached here:
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1127618/faq-sk-am62-how-to-flash-emmc-using-usb-dfu-on-am62x-sk-e2?tisearch=e2e-sitesearch&keymatch=faq%3Atrue
Kindly guide me to resolve this issue in order to complete the EMMC booting process successfully.
Discussion
Anonymous
It fails after 13631488 bytes which is exactly 13 MB. The device console says "Request would exceed designated area!". It sounds like after 13 MB you are reaching some limit on the device. How large is the rootfs partition that you are writing to? I see no problem on the host (dfu-util) side.