[NCS v2.2.0] - Device Firmware Update (DFU) via OTA using BLE

[Kevin Lin]

Hi 

In order to add DFU function to our custom board (integrating nRF52840) over OTA by using BLE, we refer to the guide named "Adding DFU support to your application" and use the same procedure (include the sample) from the "DFU over Bluetooth" section on nRF52840DK. The upload tool we use is nRF Connect Device Manager (Android-verison 1.5.2).

The result is that when we select the "Test and confirm" option on Device Manager to upgrade firmware (whatever app_update.bin or dfu_application.zip), the state will display "Invalid value (3)" after the procedure is completed. We are not sure if the firmware was successfully upgraded.

In view of this, we searched this issue on Nordic Q&A and found someone with the same problem. The case is here. We refered to the solution in this case to upgrade firmware using "Confirm Only" option. But the result was the same. We recorded two logs. One from nRF Logger app and the other from Minicom. They are as follows.

Fullscreen 6735.nRF_Logger_2023-02-22_10_17_29.log Download

Device Manager, 2023-02-22
Nordic_LBS (Device Manager)
I	10:17:34.488	[e] Connected to FB:C7:5C:DB:A6:D2
I	10:17:34.925	[e] Connection parameters updated (interval: 7.5ms, latency: 0, timeout: 5000ms)
I	10:17:35.006	[e] PHY updated (TX: LE 2M, RX: LE 2M)
I	10:17:35.206	[e] Services discovered
I	10:17:35.284	[e] Connection parameters updated (interval: 45.0ms, latency: 0, timeout: 5000ms)
I	10:17:35.311	[e] MTU changed to: 252
I	10:17:35.462	[e] Data written to descr. 00002902-0000-1000-8000-00805f9b34fb
I	10:17:35.484	[e] Notifications enabled
I	10:17:35.513	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:17:35.596	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-06-00-00-FF-06-BF-62-72-63-08-FF
I	10:17:35.620	[e] Wait for value changed complete
I	10:17:35.664	[e] Received Header (Op: 1, Flags: 0, Len: 6, Group: 0, Seq: 255, Command: 6) CBOR {"rc":8}
I	10:17:35.687	[e] PHY read (TX: LE 2M, RX: LE 2M)
I	10:17:35.710	[e] Sending (10 bytes) Header (Op: 0, Flags: 0, Len: 2, Group: 1, Seq: 0, Command: 0) CBOR {}
I	10:17:35.733	[e] Sending (10 bytes) Header (Op: 0, Flags: 0, Len: 2, Group: 0, Seq: 1, Command: 6) CBOR {}
I	10:17:35.756	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:17:35.788	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:17:35.913	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-86-00-01-00-00-BF-66-69-6D-61-67-65-73-9F-BF-64-73-6C-6F-74-00-67-76-65-72-73-69-6F-6E-65-30-2E-30-2E-30-64-68-61-73-68-58-20-74-BE-73-50-F1-1B-50-18-09-1B-27-01-AA-83-E0-36-10-AC-C3-40-E8-19-90-C0-1C-D4-59-CF-6E-60-09-F3-68-62-6F-6F-74-61-62-6C-65-F5-67-70-65-6E-64-69-6E-67-F4-69-63-6F-6E-66-69-72-6D-65-64-F5-66-61-63-74-69-76-65-F5-69-70-65-72-6D-61-6E-65-6E-74-F4-FF-FF-6B-73-70-6C-69-74-53-74-61-74-75-73-00-FF
I	10:17:35.942	[e] Received Header (Op: 1, Flags: 0, Len: 134, Group: 1, Seq: 0, Command: 0) CBOR {"images":[{"slot":0,"version":"0.0.0","hash":"dL5zUPEbUBgJGycBqoPgNhCsw0DoGZDAHNRZz25gCfM=","bootable":true,"pending":false,"confirmed":true,"active":true,"permanent":false}],"splitStatus":0}
I	10:17:36.002	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-06-00-00-01-06-BF-62-72-63-08-FF
I	10:17:36.026	[e] Received Header (Op: 1, Flags: 0, Len: 6, Group: 0, Seq: 1, Command: 6) CBOR {"rc":8}
I	10:17:39.612	[e] Connection parameters updated (interval: 45.0ms, latency: 0, timeout: 420ms)
V	10:18:33.530	[j] Starting DFU, mode: CONFIRM_ONLY
I	10:18:33.726	[e] Sending (10 bytes) Header (Op: 0, Flags: 0, Len: 2, Group: 1, Seq: 2, Command: 0) CBOR {}
I	10:18:33.757	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:18:33.828	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-86-00-01-02-00-BF-66-69-6D-61-67-65-73-9F-BF-64-73-6C-6F-74-00-67-76-65-72-73-69-6F-6E-65-30-2E-30-2E-30-64-68-61-73-68-58-20-74-BE-73-50-F1-1B-50-18-09-1B-27-01-AA-83-E0-36-10-AC-C3-40-E8-19-90-C0-1C-D4-59-CF-6E-60-09-F3-68-62-6F-6F-74-61-62-6C-65-F5-67-70-65-6E-64-69-6E-67-F4-69-63-6F-6E-66-69-72-6D-65-64-F5-66-61-63-74-69-76-65-F5-69-70-65-72-6D-61-6E-65-6E-74-F4-FF-FF-6B-73-70-6C-69-74-53-74-61-74-75-73-00-FF
I	10:18:33.860	[e] Received Header (Op: 1, Flags: 0, Len: 134, Group: 1, Seq: 2, Command: 0) CBOR {"images":[{"slot":0,"version":"0.0.0","hash":"dL5zUPEbUBgJGycBqoPgNhCsw0DoGZDAHNRZz25gCfM=","bootable":true,"pending":false,"confirmed":true,"active":true,"permanent":false}],"splitStatus":0}
V	10:18:33.908	[k] Validation response: {"images":[{"slot":0,"version":"0.0.0","hash":"dL5zUPEbUBgJGycBqoPgNhCsw0DoGZDAHNRZz25gCfM=","bootable":true,"pending":false,"confirmed":true,"active":true,"permanent":false}],"splitStatus":0}
V	10:18:33.932	[j] Moving from state VALIDATE to state UPLOAD
I	10:18:33.954	Uploading firmware...
I	10:18:53.679	Image (207602 bytes) sent in 19535 ms (avg speed: 10.627182 kB/s)
I	10:18:53.757	[Uploader] Upload completed. 207602 bytes sent in 19717 ms with avg speed: 10.528553 kBytes/s
V	10:18:53.795	[j] Moving from state UPLOAD to state CONFIRM
I	10:18:53.847	[e] Sending (58 bytes) Header (Op: 2, Flags: 0, Len: 50, Group: 1, Seq: 174, Command: 0) CBOR {"confirm":true,"hash":"aE2RAoBs7ypcoRjLGCGGB6S1sIRxdLiS4U/bHBbhUxg="}
I	10:18:53.878	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:18:53.911	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 03-00-00-06-00-01-AE-00-BF-62-72-63-03-FF
I	10:18:53.938	[e] Received Header (Op: 3, Flags: 0, Len: 6, Group: 1, Seq: 174, Command: 0) CBOR {"rc":3}
E	10:18:53.977	Upgrade failed
Mcu Mgr Error: IN_VALUE (3)
	at j2.e$b.c(Unknown Source:24)
	at k2.f.j(Unknown Source:10)
	at k2.f.c(Unknown Source:0)
	at k2.e.run(Unknown Source:4)
	at android.os.Handler.handleCallback(Handler.java:883)
	at android.os.Handler.dispatchMessage(Handler.java:100)
	at android.os.Looper.loop(Looper.java:214)
	at android.os.HandlerThread.run(HandlerThread.java:67)

I	10:19:01.875	[e] Sending (10 bytes) Header (Op: 0, Flags: 0, Len: 2, Group: 1, Seq: 175, Command: 0) CBOR {}
I	10:19:01.909	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:19:01.941	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-F4-00-01-AF-00-BF-66-69-6D-61-67-65-73-9F-BF-64-73-6C-6F-74-00-67-76-65-72-73-69-6F-6E-65-30-2E-30-2E-30-64-68-61-73-68-58-20-74-BE-73-50-F1-1B-50-18-09-1B-27-01-AA-83-E0-36-10-AC-C3-40-E8-19-90-C0-1C-D4-59-CF-6E-60-09-F3-68-62-6F-6F-74-61-62-6C-65-F5-67-70-65-6E-64-69-6E-67-F4-69-63-6F-6E-66-69-72-6D-65-64-F5-66-61-63-74-69-76-65-F5-69-70-65-72-6D-61-6E-65-6E-74-F4-FF-BF-64-73-6C-6F-74-01-67-76-65-72-73-69-6F-6E-65-30-2E-30-2E-30-64-68-61-73-68-58-20-68-4D-91-02-80-6C-EF-2A-5C-A1-18-CB-18-21-86-07-A4-B5-B0-84-71-74-B8-92-E1-4F-DB-1C-16-E1-53-18-68-62-6F-6F-74-61-62-6C-65-F5-67-70-65-6E-64-69-6E-67-F4-69-63-6F-6E-66-69-72-6D-65-64-F4-66-61-63-74-69-76-65-F4-69-70-65-72-6D-61-6E-65-6E-74-F4-FF-FF-6B-73-70-6C-69-74-53-74-61-74-75
I	10:19:01.975	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 73-00-FF
I	10:19:02.005	[e] Received Header (Op: 1, Flags: 0, Len: 244, Group: 1, Seq: 175, Command: 0) CBOR {"images":[{"slot":0,"version":"0.0.0","hash":"dL5zUPEbUBgJGycBqoPgNhCsw0DoGZDAHNRZz25gCfM=","bootable":true,"pending":false,"confirmed":true,"active":true,"permanent":false},{"slot":1,"version":"0.0.0","hash":"aE2RAoBs7ypcoRjLGCGGB6S1sIRxdLiS4U/bHBbhUxg=","bootable":true,"pending":false,"confirmed":false,"active":false,"permanent":false}],"splitStatus":0}
V	10:19:25.226	[j] Starting DFU, mode: TEST_AND_CONFIRM
I	10:19:25.377	[e] Connection parameters updated (interval: 15.0ms, latency: 0, timeout: 5000ms)
I	10:19:25.403	[e] Sending (10 bytes) Header (Op: 0, Flags: 0, Len: 2, Group: 1, Seq: 176, Command: 0) CBOR {}
I	10:19:25.440	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:19:25.478	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-F4-00-01-B0-00-BF-66-69-6D-61-67-65-73-9F-BF-64-73-6C-6F-74-00-67-76-65-72-73-69-6F-6E-65-30-2E-30-2E-30-64-68-61-73-68-58-20-74-BE-73-50-F1-1B-50-18-09-1B-27-01-AA-83-E0-36-10-AC-C3-40-E8-19-90-C0-1C-D4-59-CF-6E-60-09-F3-68-62-6F-6F-74-61-62-6C-65-F5-67-70-65-6E-64-69-6E-67-F4-69-63-6F-6E-66-69-72-6D-65-64-F5-66-61-63-74-69-76-65-F5-69-70-65-72-6D-61-6E-65-6E-74-F4-FF-BF-64-73-6C-6F-74-01-67-76-65-72-73-69-6F-6E-65-30-2E-30-2E-30-64-68-61-73-68-58-20-68-4D-91-02-80-6C-EF-2A-5C-A1-18-CB-18-21-86-07-A4-B5-B0-84-71-74-B8-92-E1-4F-DB-1C-16-E1-53-18-68-62-6F-6F-74-61-62-6C-65-F5-67-70-65-6E-64-69-6E-67-F4-69-63-6F-6E-66-69-72-6D-65-64-F4-66-61-63-74-69-76-65-F4-69-70-65-72-6D-61-6E-65-6E-74-F4-FF-FF-6B-73-70-6C-69-74-53-74-61-74-75
I	10:19:25.497	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 73-00-FF
I	10:19:25.523	[e] Received Header (Op: 1, Flags: 0, Len: 244, Group: 1, Seq: 176, Command: 0) CBOR {"images":[{"slot":0,"version":"0.0.0","hash":"dL5zUPEbUBgJGycBqoPgNhCsw0DoGZDAHNRZz25gCfM=","bootable":true,"pending":false,"confirmed":true,"active":true,"permanent":false},{"slot":1,"version":"0.0.0","hash":"aE2RAoBs7ypcoRjLGCGGB6S1sIRxdLiS4U/bHBbhUxg=","bootable":true,"pending":false,"confirmed":false,"active":false,"permanent":false}],"splitStatus":0}
V	10:19:25.551	[k] Validation response: {"images":[{"slot":0,"version":"0.0.0","hash":"dL5zUPEbUBgJGycBqoPgNhCsw0DoGZDAHNRZz25gCfM=","bootable":true,"pending":false,"confirmed":true,"active":true,"permanent":false},{"slot":1,"version":"0.0.0","hash":"aE2RAoBs7ypcoRjLGCGGB6S1sIRxdLiS4U/bHBbhUxg=","bootable":true,"pending":false,"confirmed":false,"active":false,"permanent":false}],"splitStatus":0}
V	10:19:25.578	[j] Moving from state VALIDATE to state TEST
I	10:19:25.611	[e] Sending (58 bytes) Header (Op: 2, Flags: 0, Len: 50, Group: 1, Seq: 177, Command: 0) CBOR {"confirm":false,"hash":"aE2RAoBs7ypcoRjLGCGGB6S1sIRxdLiS4U/bHBbhUxg="}
I	10:19:25.632	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:19:25.673	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 03-00-00-F4-00-01-B1-00-BF-66-69-6D-61-67-65-73-9F-BF-64-73-6C-6F-74-00-67-76-65-72-73-69-6F-6E-65-30-2E-30-2E-30-64-68-61-73-68-58-20-74-BE-73-50-F1-1B-50-18-09-1B-27-01-AA-83-E0-36-10-AC-C3-40-E8-19-90-C0-1C-D4-59-CF-6E-60-09-F3-68-62-6F-6F-74-61-62-6C-65-F5-67-70-65-6E-64-69-6E-67-F4-69-63-6F-6E-66-69-72-6D-65-64-F5-66-61-63-74-69-76-65-F5-69-70-65-72-6D-61-6E-65-6E-74-F4-FF-BF-64-73-6C-6F-74-01-67-76-65-72-73-69-6F-6E-65-30-2E-30-2E-30-64-68-61-73-68-58-20-68-4D-91-02-80-6C-EF-2A-5C-A1-18-CB-18-21-86-07-A4-B5-B0-84-71-74-B8-92-E1-4F-DB-1C-16-E1-53-18-68-62-6F-6F-74-61-62-6C-65-F5-67-70-65-6E-64-69-6E-67-F5-69-63-6F-6E-66-69-72-6D-65-64-F4-66-61-63-74-69-76-65-F4-69-70-65-72-6D-61-6E-65-6E-74-F4-FF-FF-6B-73-70-6C-69-74-53-74-61-74-75
I	10:19:25.701	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 73-00-FF
I	10:19:25.723	[e] Received Header (Op: 3, Flags: 0, Len: 244, Group: 1, Seq: 177, Command: 0) CBOR {"images":[{"slot":0,"version":"0.0.0","hash":"dL5zUPEbUBgJGycBqoPgNhCsw0DoGZDAHNRZz25gCfM=","bootable":true,"pending":false,"confirmed":true,"active":true,"permanent":false},{"slot":1,"version":"0.0.0","hash":"aE2RAoBs7ypcoRjLGCGGB6S1sIRxdLiS4U/bHBbhUxg=","bootable":true,"pending":true,"confirmed":false,"active":false,"permanent":false}],"splitStatus":0}
V	10:19:25.747	[i] Test response: {"images":[{"slot":0,"version":"0.0.0","hash":"dL5zUPEbUBgJGycBqoPgNhCsw0DoGZDAHNRZz25gCfM=","bootable":true,"pending":false,"confirmed":true,"active":true,"permanent":false},{"slot":1,"version":"0.0.0","hash":"aE2RAoBs7ypcoRjLGCGGB6S1sIRxdLiS4U/bHBbhUxg=","bootable":true,"pending":true,"confirmed":false,"active":false,"permanent":false}],"splitStatus":0}
V	10:19:25.770	[j] Moving from state TEST to state RESET
I	10:19:25.807	[e] Sending (10 bytes) Header (Op: 2, Flags: 0, Len: 2, Group: 0, Seq: 178, Command: 5) CBOR {}
I	10:19:25.847	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:19:25.876	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 03-00-00-02-00-00-B2-05-BF-FF
I	10:19:25.896	[e] Received Header (Op: 3, Flags: 0, Len: 2, Group: 0, Seq: 178, Command: 5) CBOR {}
V	10:19:25.917	[g] Reset request success. Waiting for disconnect...
W	10:19:33.614	[e] Error: (0x8): GATT CONN TIMEOUT
I	10:19:33.666	[e] Disconnected
I	10:19:33.701	[g] Device disconnected
V	10:19:33.727	[g] Waiting remaining 2192 ms for the swap operation to complete
V	10:19:35.957	[j] Moving from state RESET to state CONFIRM
I	10:19:47.473	[e] Connected to FB:C7:5C:DB:A6:D2
I	10:19:47.896	[e] Connection parameters updated (interval: 7.5ms, latency: 0, timeout: 5000ms)
I	10:19:47.974	[e] PHY updated (TX: LE 2M, RX: LE 2M)
I	10:19:48.210	[e] Services discovered
I	10:19:48.262	[e] MTU changed to: 252
I	10:19:48.300	[e] Connection parameters updated (interval: 45.0ms, latency: 0, timeout: 5000ms)
I	10:19:48.529	[e] Data written to descr. 00002902-0000-1000-8000-00805f9b34fb
I	10:19:48.572	[e] Notifications enabled
I	10:19:48.606	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:19:48.661	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-06-00-00-FF-06-BF-62-72-63-08-FF
I	10:19:48.690	[e] Wait for value changed complete
I	10:19:48.717	[e] Received Header (Op: 1, Flags: 0, Len: 6, Group: 0, Seq: 255, Command: 6) CBOR {"rc":8}
I	10:19:48.744	[e] PHY read (TX: LE 2M, RX: LE 2M)
I	10:19:48.774	[e] Sending (58 bytes) Header (Op: 2, Flags: 0, Len: 50, Group: 1, Seq: 0, Command: 0) CBOR {"confirm":true,"hash":"aE2RAoBs7ypcoRjLGCGGB6S1sIRxdLiS4U/bHBbhUxg="}
I	10:19:48.802	[e] Sending (10 bytes) Header (Op: 0, Flags: 0, Len: 2, Group: 0, Seq: 1, Command: 6) CBOR {}
I	10:19:48.826	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:19:48.861	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:19:48.891	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 03-00-00-06-00-01-00-00-BF-62-72-63-03-FF
I	10:19:48.921	[e] Received Header (Op: 3, Flags: 0, Len: 6, Group: 1, Seq: 0, Command: 0) CBOR {"rc":3}
E	10:19:48.968	Upgrade failed
Mcu Mgr Error: IN_VALUE (3)
	at j2.e$b.c(Unknown Source:24)
	at k2.f.j(Unknown Source:10)
	at k2.f.c(Unknown Source:0)
	at k2.e.run(Unknown Source:4)
	at android.os.Handler.handleCallback(Handler.java:883)
	at android.os.Handler.dispatchMessage(Handler.java:100)
	at android.os.Looper.loop(Looper.java:214)
	at android.os.HandlerThread.run(HandlerThread.java:67)

I	10:19:49.002	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-06-00-00-01-06-BF-62-72-63-08-FF
I	10:19:49.036	[e] Received Header (Op: 1, Flags: 0, Len: 6, Group: 0, Seq: 1, Command: 6) CBOR {"rc":8}
I	10:19:52.590	[e] Connection parameters updated (interval: 45.0ms, latency: 0, timeout: 420ms)
I	10:20:01.416	[e] Sending (10 bytes) Header (Op: 0, Flags: 0, Len: 2, Group: 1, Seq: 2, Command: 0) CBOR {}
I	10:20:01.458	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:20:01.582	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-F4-00-01-02-00-BF-66-69-6D-61-67-65-73-9F-BF-64-73-6C-6F-74-00-67-76-65-72-73-69-6F-6E-65-30-2E-30-2E-30-64-68-61-73-68-58-20-68-4D-91-02-80-6C-EF-2A-5C-A1-18-CB-18-21-86-07-A4-B5-B0-84-71-74-B8-92-E1-4F-DB-1C-16-E1-53-18-68-62-6F-6F-74-61-62-6C-65-F5-67-70-65-6E-64-69-6E-67-F4-69-63-6F-6E-66-69-72-6D-65-64-F4-66-61-63-74-69-76-65-F5-69-70-65-72-6D-61-6E-65-6E-74-F4-FF-BF-64-73-6C-6F-74-01-67-76-65-72-73-69-6F-6E-65-30-2E-30-2E-30-64-68-61-73-68-58-20-74-BE-73-50-F1-1B-50-18-09-1B-27-01-AA-83-E0-36-10-AC-C3-40-E8-19-90-C0-1C-D4-59-CF-6E-60-09-F3-68-62-6F-6F-74-61-62-6C-65-F5-67-70-65-6E-64-69-6E-67-F4-69-63-6F-6E-66-69-72-6D-65-64-F5-66-61-63-74-69-76-65-F4-69-70-65-72-6D-61-6E-65-6E-74-F4-FF-FF-6B-73-70-6C-69-74-53-74-61-74-75
I	10:20:01.667	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 73-00-FF
I	10:20:01.697	[e] Received Header (Op: 1, Flags: 0, Len: 244, Group: 1, Seq: 2, Command: 0) CBOR {"images":[{"slot":0,"version":"0.0.0","hash":"aE2RAoBs7ypcoRjLGCGGB6S1sIRxdLiS4U/bHBbhUxg=","bootable":true,"pending":false,"confirmed":false,"active":true,"permanent":false},{"slot":1,"version":"0.0.0","hash":"dL5zUPEbUBgJGycBqoPgNhCsw0DoGZDAHNRZz25gCfM=","bootable":true,"pending":false,"confirmed":true,"active":false,"permanent":false}],"splitStatus":0}
I	10:20:26.721	[e] Sending (10 bytes) Header (Op: 2, Flags: 0, Len: 2, Group: 0, Seq: 3, Command: 5) CBOR {}
I	10:20:26.809	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:20:26.865	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 03-00-00-02-00-00-03-05-BF-FF
I	10:20:26.894	[e] Received Header (Op: 3, Flags: 0, Len: 2, Group: 0, Seq: 3, Command: 5) CBOR {}
W	10:20:27.683	[e] Error: (0x8): GATT CONN TIMEOUT
I	10:20:27.725	[e] Disconnected
I	10:20:48.442	[e] Connected to FB:C7:5C:DB:A6:D2
I	10:20:48.872	[e] Connection parameters updated (interval: 7.5ms, latency: 0, timeout: 5000ms)
I	10:20:48.956	[e] PHY updated (TX: LE 2M, RX: LE 2M)
I	10:20:49.167	[e] Services discovered
I	10:20:49.223	[e] MTU changed to: 252
I	10:20:49.278	[e] Connection parameters updated (interval: 45.0ms, latency: 0, timeout: 5000ms)
I	10:20:49.322	[e] Data written to descr. 00002902-0000-1000-8000-00805f9b34fb
I	10:20:49.353	[e] Notifications enabled
I	10:20:49.389	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:20:49.461	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-06-00-00-FF-06-BF-62-72-63-08-FF
I	10:20:49.491	[e] Wait for value changed complete
I	10:20:49.528	[e] Received Header (Op: 1, Flags: 0, Len: 6, Group: 0, Seq: 255, Command: 6) CBOR {"rc":8}
I	10:20:49.563	[e] PHY read (TX: LE 2M, RX: LE 2M)
I	10:20:49.601	[e] Sending (10 bytes) Header (Op: 0, Flags: 0, Len: 2, Group: 1, Seq: 0, Command: 0) CBOR {}
I	10:20:49.647	[e] Sending (10 bytes) Header (Op: 0, Flags: 0, Len: 2, Group: 0, Seq: 1, Command: 6) CBOR {}
I	10:20:49.674	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:20:49.701	[e] Data written to da2e7828-fbce-4e01-ae9e-261174997c48
I	10:20:49.748	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-F4-00-01-00-00-BF-66-69-6D-61-67-65-73-9F-BF-64-73-6C-6F-74-00-67-76-65-72-73-69-6F-6E-65-30-2E-30-2E-30-64-68-61-73-68-58-20-74-BE-73-50-F1-1B-50-18-09-1B-27-01-AA-83-E0-36-10-AC-C3-40-E8-19-90-C0-1C-D4-59-CF-6E-60-09-F3-68-62-6F-6F-74-61-62-6C-65-F5-67-70-65-6E-64-69-6E-67-F4-69-63-6F-6E-66-69-72-6D-65-64-F5-66-61-63-74-69-76-65-F5-69-70-65-72-6D-61-6E-65-6E-74-F4-FF-BF-64-73-6C-6F-74-01-67-76-65-72-73-69-6F-6E-65-30-2E-30-2E-30-64-68-61-73-68-58-20-68-4D-91-02-80-6C-EF-2A-5C-A1-18-CB-18-21-86-07-A4-B5-B0-84-71-74-B8-92-E1-4F-DB-1C-16-E1-53-18-68-62-6F-6F-74-61-62-6C-65-F5-67-70-65-6E-64-69-6E-67-F4-69-63-6F-6E-66-69-72-6D-65-64-F4-66-61-63-74-69-76-65-F4-69-70-65-72-6D-61-6E-65-6E-74-F4-FF-FF-6B-73-70-6C-69-74-53-74-61-74-75
I	10:20:49.822	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 73-00-FF
I	10:20:49.859	[e] Received Header (Op: 1, Flags: 0, Len: 244, Group: 1, Seq: 0, Command: 0) CBOR {"images":[{"slot":0,"version":"0.0.0","hash":"dL5zUPEbUBgJGycBqoPgNhCsw0DoGZDAHNRZz25gCfM=","bootable":true,"pending":false,"confirmed":true,"active":true,"permanent":false},{"slot":1,"version":"0.0.0","hash":"aE2RAoBs7ypcoRjLGCGGB6S1sIRxdLiS4U/bHBbhUxg=","bootable":true,"pending":false,"confirmed":false,"active":false,"permanent":false}],"splitStatus":0}
I	10:20:49.913	[e] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-06-00-00-01-06-BF-62-72-63-08-FF
I	10:20:49.953	[e] Received Header (Op: 1, Flags: 0, Len: 6, Group: 0, Seq: 1, Command: 6) CBOR {"rc":8}
I	10:20:53.566	[e] Connection parameters updated (interval: 45.0ms, latency: 0, timeout: 420ms)

In the minicom log, there is a test log "########## Test Log - Another Image ##########". It means that the current image is using the new image. In addition, you can also confirm the "build time" log to check if the active image is changed.

Fullscreen 4682.minicom_nrf52840dk_dfu_ble-2023-02-22.log Download

*** Booting Zephyr OS build v3.2.99-ncs1 ***
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: Swap type: none
I: Bootloader chainload address offset: 0xc000
I: Jumping to the first image slot*** Booting Zephyr OS build v3.2.99-ncs1 ***
Starting Bluetooth Peripheral LBS example
build time: Feb 21 2023 16:50:30
I: 2 Sectors of 4096 bytes
I: alloc wra: 0, fe8
I: data wra: 0, 0
I: SoftDevice Controller build revision: 
I: 6d 90 41 2a 38 e8 ad 17 |m.A*8...
I: 29 a5 03 38 39 27 d7 85 |)..89'..
I: 1f 85 d8 e1             |....    
I: No ID address. App must call settings_load()
Bluetooth initialized
Advertising successfully started
Connected
I: Swap type: none
I: Swap type: none
I: Swap type: none
I: Swap type: none
I: Swap type: none
I: Swap type: none
I: Swap type: none
I: Swap type: none
I: Swap type: none
I: Swap type: test
I: Swap type: test
*** Booting Zephyr OS build v3.2.99-ncs1 ***
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: Swap type: test
I: Starting swap using move algorithm.
I: Bootloader chainload address offset: 0xc000
I: Jumping to the first image slot*** Booting Zephyr OS build v3.2.99-ncs1 ***
Starting Bluetooth Peripheral LBS example
########## Test Log - Another Image ##########
build time: Feb 21 2023 16:49:34
I: 2 Sectors of 4096 bytes
I: alloc wra: 0, fd0
I: data wra: 0, 1c
I: SoftDevice Controller build revision: 
I: 6d 90 41 2a 38 e8 ad 17 |m.A*8...
I: 29 a5 03 38 39 27 d7 85 |)..89'..
I: 1f 85 d8 e1             |....    
I: No ID address. App must call settings_load()
Bluetooth initialized
Advertising successfully started
Connected
I: Swap type: revert
I: Swap type: revert
*** Booting Zephyr OS build v3.2.99-ncs1 ***
I: Starting bootloader
I: Primary image: magic=good, swap_type=0x2, copy_done=0x1, image_ok=0x3
I: Secondary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3
I: Boot source: none
I: Swap type: revert
I: Starting swap using move algorithm.
I: Secondary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3
I: Bootloader chainload address offset: 0xc000
I: Jumping to the first image slot*** Booting Zephyr OS build v3.2.99-ncs1 ***
Starting Bluetooth Peripheral LBS example
build time: Feb 21 2023 16:50:30
I: 2 Sectors of 4096 bytes
I: alloc wra: 0, fd0
I: data wra: 0, 1c
I: SoftDevice Controller build revision: 
I: 6d 90 41 2a 38 e8 ad 17 |m.A*8...
I: 29 a5 03 38 39 27 d7 85 |)..89'..
I: 1f 85 d8 e1             |....    
I: No ID address. App must call settings_load()
Bluetooth initialized
Advertising successfully started
Connected
I: Swap type: none
I: Swap type: none

The following steps show the process we did.

1. After connect to the nRF52840DK, click "Image" section and choose "ADVANED". Then "READ" the image. It will send the current image information.

2. Choose "BASIC" and select a image file (binary or zip file). After click "START", it will ask you to select mode. Here we choose "Confirm only" and click "START".

3. After the process is completed, the "State" will change. The message is "Invalid value (3)".

4. Check the image information as the same as the first step and you will see that there are two images in nRF52840DK. But the active image is not the new one but the original one.

5. Next, test the "Test and confirm" option as the same as the second step.

6. The result is also the same as the "Confirm only" method.

7. "READ" image again and you will see the active image is changed to the new one and their locations have also changed.

8. Send a "RESET" command to nRF52840DK to test if it will use the new image after reset.

9. "READ" image again and you will see the active is changed to the original one but not the new one, since the image was not successfully confirmed.

Can anyone help with this?

Please feel free to let me know if you need more information.

Thanks.

Best Regards,

Kevin

[Aleksander Nowakowski]

Hi,

In your design, what is the device acting as peripheral? Is it another device, or a phone?

When you have a single connection (e.g. phone - device), both sides can have list of services for the other to use. Both sides can do service discovery, read and write each others characteristics as clients and send notifications as servers.

But if you want to have a connection "device A - device B" plus sometimes "phone - device A" to update it, you need to implement it on the fw side. Technically it is possible, but Menon should know much more.

I would recommend creating a new thread for a different issue.

[Menon]

Hello,

Glad to hear that you finally succeed in doing the OTA DFU.

What Aleksander Mentioned is true. But you can switch between central and peripheral role in the same device. Lets say your Application is working with central role and when it enters bootloader mode for doing the OTA DFU it can turn into peripheral and connect with another device (may be phone). Now the phone(central) can send the image and after a successful upload the chip will reset and your Application will start, acting as central.

This thread is too long. So I also suggest you to start a new case if you have further doubt on this issue. This will keep the Devzone tidy and easy for other users.

Kind Regards,

Abhijith

[Kevin Lin]

Hi,

The peripheral is a remote control. The use case is that the nRF52840 (central) connects to a remote control (peripheral) and the sample we refer to is Central HIDS. If the user presses a key on the remote control, the remote control will sent a key event to the nRF52840. Then nRF52840 will do the next step we need. 

The above situation is under normal use. But if the use case becomes more complex or bugs arise, the nRF52840's firmware will inevitably need to be updated in the future to support more functions or fix problems. When this requirement occurs, we will use the Android/iOS app developed by your company to update the firmware, for example: nRF Connect for Mobile or nRF Connect Device Manager. In this case, the nRF52840 needs to connect to a Android/iOS device (not just a phone) for updating its firmware.

As you said, our situation is probably more like the second one. Glad to hear this feature is actually possible. I'll try to implement it by myself.

For your suggestion, I'll create a new thread for this question.

I really appreciate the help and support that you and Menon have given me during these days.

Best Regards,

Kevin

[Kevin Lin]

Hi,

Thanks for the detailed explanation.

You mean when nRF52840's firmware needs to be updated, I can use trigger mechanism to make nRF52840 enter bootloader mode? The nRF52840 is then able to automatically switch between central and peripheral. Is my understanding correct?

If yes, I have an idea about the trigger mechanism. According to our project design, nRF52840 plays a central role (Central HIDS). I can design a button that if short pressed, the nRF52840 will start the peripheral's initial program. It will then enter bootloader mode (SMP server). After the firmware update is complete, the nRF52840 will revert to the central role. For the initialization procedure of peripherals, I can refer to the DFU over Bluetooth section in the guide of Add DFU support to your application. That is, can I add the DFU over Bluetooth part (containing the peripheral code) to the central HIDS code using a trigger mechanism? Is that possible?

For your suggestion, I'll create a new thread for this question.

I really appreciate the help and support that you and Aleksander Nowakowski  have given me during these days.

Best Regards,

Kevin

[Menon]

Hello,

Kevin Lin said:

You mean when nRF52840's firmware needs to be updated, I can use trigger mechanism to make nRF52840 enter bootloader mode? The nRF52840 is then able to automatically switch between central and peripheral. Is my understanding correct?

Yes that's correct.

Kevin Lin said:

For your suggestion, I'll create a new thread for this question

I would really appreciate that.

Kind Regards,

Abhijith