Hi,
Could you please have a look at the dfu-util output and give me a hint
on why what I'm doing is not working. Here is a description of the problem:
I am using an NRF52840DK.
1. I erase the chip to start clean:
nrfjprog --eraseall
2. I flash the MCUboot bootloader:
~/mcuboot/boot/zephyr$ west flash
The output from the console is OK as there is no image:
*** Booting MCUboot v2.1.0-43-g50f35144e4e4 ***
*** Using Zephyr OS build v3.6.0-596-g9fa4cd8226ce ***
I: Starting bootloader
I: Primary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3
I: Secondary image: magic=unset, swap_type=0x1, copy_done=0x3,
image_ok=0x3
I: Boot source: none
W: Failed reading image headers; Image=0
E: Unable to find bootable image
3. I flash my first USB DFU enabled image:
~/zephyr/usb_dfu/build/zephyr$ nrfjprog --program
build/zephyr/zephyr.signed.hex
After resetting, the console output is OK and the image is executed:
*** Booting MCUboot v2.1.0-43-g50f35144e4e4 ***
*** Using Zephyr OS build v3.6.0-596-g9fa4cd8226ce ***
I: Starting bootloader
I: Primary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3
I: Secondary image: magic=unset, swap_type=0x1, copy_done=0x3,
image_ok=0x3
I: Boot source: none
I: Image index: 0, Swap type: none
I: Bootloader chainload address offset: 0xc000
I: Jumping to the first image slot
[00:00:00.000,213] <err> qspi_nor: JEDEC id [00 00 00] expect [c2 28 17]
*** Booting Zephyr OS build v3.6.0-596-g9fa4cd8226ce ***
[00:00:00.000,549] <inf> main: This device supports USB DFU class.
4. I check dfu-util:
~/zephyr/counter/build/zephyr# dfu-util -l
dfu-util 0.11
Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2021 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to sourceforge.net/.../
Found Runtime: [2fe3:0005] ver=0306, devnum=117, cfg=1, intf=0,
path="3-3.4.3", alt=0, name="UNKNOWN", serial="4327BC869F6C049C"
Notice there is only alt=0
5. I try to download the new image:
~/zephyr/counter/build/zephyr# dfu-util --download zephyr.signed.hex
The download fails but alt=1 appears:
dfu-util 0.11
Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2021 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to sourceforge.net/.../
dfu-util: Warning: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release
Opening DFU capable USB device...
Device ID 2fe3:0005
Device DFU version 0110
Claiming USB DFU (Run-Time) Interface...
Setting Alternate Interface zero...
Determining device status...
DFU state(0) = appIDLE, status(0) = No error condition is present
Device really in Run-Time Mode, send DFU detach request...
Device will detach and reattach...
dfu-util: More than one DFU capable USB device found! Try `--list' and
specify the serial number or disconnect all but one device
6. I try to download the new image in the newly appeared slot:
~/zephyr/counter/build/zephyr# dfu-util --download zephyr.signed.hex
--alt 1
This time dfu-util succeeds:
dfu-util 0.11
Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2021 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to sourceforge.net/.../
dfu-util: Warning: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release
Opening DFU capable USB device...
Device ID 2fe3:ffff
Device DFU version 0110
Claiming USB DFU Interface...
Setting Alternate Interface #1 ...
Determining device status...
DFU state(2) = dfuIDLE, status(0) = No error condition is present
DFU mode device DFU version 0110
Device returned transfer size 128
Copying data from PC to DFU device
Download [=========================] 100% 177796 bytes
Download done.
DFU state(2) = dfuIDLE, status(0) = No error condition is present
Done!
But after I press reset, the board swaps but still boots the old image:
*** Booting MCUboot v2.1.0-43-g50f35144e4e4 ***
*** Using Zephyr OS build v3.6.0-596-g9fa4cd8226ce ***
I: Starting bootloader
I: Primary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3
I: Secondary image: magic=good, swap_type=0x2, copy_done=0x3, image_ok=0x3
I: Boot source: none
I: Image index: 0, Swap type: test
I: Bootloader chainload address offset: 0xc000
I: Jumping to the first image slot
[00:00:00.000,213] <err> qspi_nor: JEDEC id [00 00 00] expect [c2 28 17]
*** Booting Zephyr OS build v3.6.0-596-g9fa4cd8226ce ***
[00:00:00.000,549] <inf> main: This device supports USB DFU class.
Best regards,
-- Alex
