Monitor A Device Update
The Golioth Zephyr SDK is deprecated. Please use the Golioth Firmware SDK. (Migration Guide)
When a new release candidate appears on the Golioth Cloud it will be detected by any target boards not already running the new version and the DFU process will be started in Zephyr. Here is an example of what is visible on the serial console:
[00:00:06.483,764] <dbg> golioth_dfu: Desired
a3 01 1a 61 7a be 80 02 78 40 61 66 62 66 38 34 |...az... x@afbf84
33 31 33 61 36 66 65 30 66 37 63 30 35 35 39 37 |313a6fe0 f7c05597
62 36 31 37 32 38 32 30 64 31 37 65 30 64 30 39 |b6172820 d17e0d09
37 63 31 32 34 35 36 31 64 34 30 34 65 38 32 34 |7c124561 d404e824
37 39 32 30 64 38 66 30 39 33 03 81 a6 01 64 6d |7920d8f0 93....dm
61 69 6e 02 65 31 2e 32 2e 33 03 78 40 35 30 34 |ain.e1.2 .3.x@504
39 36 32 37 30 38 31 39 33 32 39 37 66 36 38 66 |96270819 3297f68f
62 61 34 61 33 31 39 64 65 65 66 61 34 39 61 37 |ba4a319d eefa49a7
35 31 33 32 39 30 31 31 35 36 63 32 37 31 63 62 |51329011 56c271cb
31 34 65 37 39 66 63 61 38 30 33 64 66 04 1a 00 |14e79fca 803df...
09 b0 a0 05 70 2f 2e 75 2f 63 2f 6d 61 69 6e 40 |....p/.u /c/main@
31 2e 32 2e 33 06 67 6d 63 75 62 6f 6f 74 |1.2.3.gm cuboot
[00:00:06.484,130] <inf> golioth: Manifest sequence-number: 1635434112
[00:00:06.637,725] <dbg> golioth_dfu.data_received: Received 1024 bytes at offset 0
[00:00:06.637,847] <inf> mcuboot_util: Swap type: none
[00:00:06.637,847] <inf> golioth_dfu: swap type: none
[00:00:06.863,555] <dbg> golioth_dfu.data_received: Received 1024 bytes at offset 1024
[00:00:07.000,457] <dbg> golioth_dfu.data_received: Received 1024 bytes at offset 2048
[00:00:07.137,786] <dbg> golioth_dfu.data_received: Received 1024 bytes at offset 3072
...
[00:03:44.913,208] <dbg> golioth_dfu.data_received: Received 1024 bytes at offset 218112
[00:03:44.956,146] <dbg> golioth_dfu.data_received: Received 1024 bytes at offset 219136
[00:03:44.995,086] <dbg> golioth_dfu.data_received: Received 1024 bytes at offset 220160
[00:03:45.030,334] <dbg> golioth_dfu.data_received: Received 768 bytes at offset 221184 (last)
[00:03:45.210,205] <inf> golioth_dfu: Requesting upgrade
[00:03:45.210,540] <inf> golioth_dfu: Rebooting in 1 second(s)
At this point MCUboot swaps the first application slot (containing old firmware) with the second application slot (containing new firmware). After a few seconds (this timing depends on firmware size) new firmware will be booted from the first application slot and the following messages will appear on the serial console:
*** Booting Zephyr OS build zephyr-v2.5.0-2205-g3276779c5a88 ***
[00:00:00.008,850] <dbg> golioth_dfu.main: Start DFU sample
[00:00:00.009,155] <inf> golioth_dfu: Initializing golioth client
[00:00:00.009,246] <inf> golioth_dfu: Golioth client initialized
[00:00:00.009,307] <inf> golioth_dfu: Starting connect
The application creates a shell command accessible via the serial console. Execute the command mcuboot to confirm that new firmware is running from primary area (first application slot):
uart:~$ mcuboot
swap type: none
confirmed: 1
primary area (1):
version: 1.2.3+0
image size: 221104
image hash: 40710f0bd8171d7614b13da4821da57066f4431e4f3ebb473de9e95f6467ae65
magic: good
swap type: test
copy done: set
image ok: set
secondary area (2):
version: 0.0.0+0
image size: 221104
image hash: f48973eed40a9d30795df7121183e7a828e9b89aa5ee84f2db1318f7cf51be0b
magic: unset
swap type: none
copy done: unset
image ok: unset