hello Nordic
i am working with nrf52840, zephyr rtos.
i can preform dfu via mcumgr cli (command line interface) or via nrfConnect application on my cell phone.
however, i need to be writing (in rust) a dfu over ble mechanism, like the mcumgr (which to my understanding from looking at the data transfer below, the nrfConnect is using as well)
data transmission on the nrfConnect application:
nRF Connect, 2021-11-09
Canary_EP_-1 (F3:5E:20:33:B0:0D)
V 13:02:22.762 Connecting to F3:5E:20:33:B0:0D...
D 13:02:22.762 gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE)
D 13:02:23.922 [Callback] Connection state changed with status: 0 and new state: CONNECTED (2)
D 13:02:23.924 [Broadcast] Action received: android.bluetooth.device.action.ACL_CONNECTED
I 13:02:23.959 Connected to F3:5E:20:33:B0:0D
V 13:02:24.042 Discovering services...
D 13:02:24.042 gatt.discoverServices()
D 13:02:25.318 [Callback] Services discovered with status: 0
I 13:02:25.318 Services discovered
V 13:02:25.350 Generic Attribute (0x1801)
- Service Changed [I] (0x2A05)
Client Characteristic Configuration (0x2902)
Generic Access (0x1800)
- Device Name [R W] (0x2A00)
- Appearance [R] (0x2A01)
- Peripheral Preferred Connection Parameters [R] (0x2A04)
Battery Service (0x180F)
- Battery Level [R] (0x2A19)
Unknown Service (b65452a2-66a6-418a-cc40-31d4da2db50b)
- Unknown Characteristic [R W] (4d853009-03b8-f6a6-3643-307a87f67bac)
Current Time Service (0x1805)
- Current Time [N R W] (0x2A2B)
Client Characteristic Configuration (0x2902)
Unknown Service (52e2788e-5525-81b3-604c-a378379128bf)
- Unknown Characteristic [N R W] (704718fd-ffc2-b79c-5940-bbb0bef9d1b5)
Client Characteristic Configuration (0x2902)
Device Information (0x180A)
- Model Number String [R] (0x2A24)
- Manufacturer Name String [R] (0x2A29)
- Serial Number String [R] (0x2A25)
- Firmware Revision String [R] (0x2A26)
- Hardware Revision String [R] (0x2A27)
Unknown Service (00001523-ca77-eca5-6347-d8cb280e2c68)
- Unknown Characteristic [R W] (00001524-ca77-eca5-6347-d8cb280e2c68)
- Unknown Characteristic [N R] (00001525-ca77-eca5-6347-d8cb280e2c68)
Client Characteristic Configuration (0x2902)
Tx Power (0x1804)
- Tx Power Level [R] (0x2A07)
SMP Service (8d53dc1d-1db7-4cd3-868b-8a527460aa84)
- SMP Characteristic [N WNR] (da2e7828-fbce-4e01-ae9e-261174997c48)
Client Characteristic Configuration (0x2902)
D 13:02:25.350 gatt.setCharacteristicNotification(00002a05-0000-1000-8000-00805f9b34fb, true)
D 13:02:25.353 gatt.setCharacteristicNotification(00002a2b-0000-1000-8000-00805f9b34fb, true)
D 13:02:25.355 gatt.setCharacteristicNotification(704718fd-ffc2-b79c-5940-bbb0bef9d1b5, true)
D 13:02:25.357 gatt.setCharacteristicNotification(00001525-ca77-eca5-6347-d8cb280e2c68, true)
V 13:02:47.859 [McuMgr] Connecting...
D 13:02:47.914 [McuMgr] gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE)
D 13:02:47.953 [McuMgr] [Callback] Connection state changed with status: 0 and new state: 2 (CONNECTED)
I 13:02:47.968 [McuMgr] Connected to F3:5E:20:33:B0:0D
D 13:02:47.979 [McuMgr] wait(300)
V 13:02:48.308 [McuMgr] Discovering services...
D 13:02:48.322 [McuMgr] gatt.discoverServices()
I 13:02:48.405 [McuMgr] Services discovered
V 13:02:48.416 [McuMgr] Primary service found
V 13:02:48.433 [McuMgr] Requesting new MTU...
D 13:02:48.440 [McuMgr] gatt.requestMtu(515)
I 13:02:48.524 [McuMgr] MTU changed to: 252
D 13:02:48.535 [McuMgr] gatt.setCharacteristicNotification(da2e7828-fbce-4e01-ae9e-261174997c48, true)
V 13:02:48.548 [McuMgr] Enabling notifications for da2e7828-fbce-4e01-ae9e-261174997c48
D 13:02:48.557 [McuMgr] gatt.writeDescriptor(00002902-0000-1000-8000-00805f9b34fb, value=0x01-00)
I 13:02:48.668 [McuMgr] Data written to descr. 00002902-0000-1000-8000-00805f9b34fb, value: (0x) 01-00
I 13:02:48.678 [McuMgr] Notifications enabled
V 13:02:48.706 [McuMgr] Writing characteristic da2e7828-fbce-4e01-ae9e-261174997c48 (WRITE COMMAND)
D 13:02:48.716 [McuMgr] gatt.writeCharacteristic(da2e7828-fbce-4e01-ae9e-261174997c48)
I 13:02:48.728 [McuMgr] Data written to da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 00-00-00-02-00-01-00-00-BF-FF
A 13:02:48.739 [McuMgr] "Operation: READ
Flags: 0
Length: 2
Group Id: 1 (IMAGE)
Sequence Num: 0
Command Id: 0 (STATE)
Message: {}" sent
I 13:02:48.822 [McuMgr] 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-34-2E-31-64-68-61-73-68-58-20-20-2F-53-64-6E-8A-B9-87-B9-2D-19-54-7C-10-38-87-A8-20-35-11-E8-31-2C-7F-B3-2E-3E-E0-6E-08-21-B7-68-62-6F-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-34-2E-31-64-68-61-73-68-58-20-A2-91-E8-D0-E4-88-EC-F0-32-9B-E6-D5-5A-50-6D-F9-EA-63-B2-BE-D7-86-F0-68-E0-2D-9A-88-18-32-DA-25-68-62-6F-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 13:02:48.831 [McuMgr] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 73-00-FF
A 13:02:48.876 [McuMgr] "{"images":[{"slot":0,"version":"0.4.1","hash":"IC9TZG6KuYe5LRlUfBA4h6ggNRHoMSx/sy4+4G4IIbc=","bootable":true,"pending":false,"confirmed":true,"active":true,"permanent":false},{"slot":1,"version":"0.4.1","hash":"opHo0OSI7PAym+bVWlBt+epjsr7XhvBo4C2aiBgy2iU=","bootable":true,"pending":false,"confirmed":false,"active":false,"permanent":false}],"splitStatus":0}" received
V 13:02:48.963 [McuMgr] Uploading firmware...
V 13:05:24.983 [McuMgr] Writing characteristic da2e7828-fbce-4e01-ae9e-261174997c48 (WRITE COMMAND)
D 13:05:24.996 [McuMgr] gatt.writeCharacteristic(da2e7828-fbce-4e01-ae9e-261174997c48)
I 13:05:25.009 [McuMgr] Data written to da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 02-00-00-32-00-01-00-00-BF-67-63-6F-6E-66-69-72-6D-F4-64-68-61-73-68-58-20-8A-B4-65-7D-20-CD-52-CB-8D-66-4E-D9-15-7D-A0-EC-41-06-02-0C-E0-84-F8-62-2F-D9-76-A1-DB-27-31-21-FF
A 13:05:25.033 [McuMgr] "Operation: WRITE
Flags: 0
Length: 50
Group Id: 1 (IMAGE)
Sequence Num: 0
Command Id: 0 (STATE)
Message: {"confirm":false,"hash":"irRlfSDNUsuNZk7ZFX2g7EEGAgzghPhiL9l2odsnMSE="}" sent
I 13:05:25.159 [McuMgr] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 03-00-00-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-34-2E-31-64-68-61-73-68-58-20-20-2F-53-64-6E-8A-B9-87-B9-2D-19-54-7C-10-38-87-A8-20-35-11-E8-31-2C-7F-B3-2E-3E-E0-6E-08-21-B7-68-62-6F-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-34-2E-31-64-68-61-73-68-58-20-8A-B4-65-7D-20-CD-52-CB-8D-66-4E-D9-15-7D-A0-EC-41-06-02-0C-E0-84-F8-62-2F-D9-76-A1-DB-27-31-21-68-62-6F-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 13:05:25.171 [McuMgr] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 73-00-FF
A 13:05:25.204 [McuMgr] "{"images":[{"slot":0,"version":"0.4.1","hash":"IC9TZG6KuYe5LRlUfBA4h6ggNRHoMSx/sy4+4G4IIbc=","bootable":true,"pending":false,"confirmed":true,"active":true,"permanent":false},{"slot":1,"version":"0.4.1","hash":"irRlfSDNUsuNZk7ZFX2g7EEGAgzghPhiL9l2odsnMSE=","bootable":true,"pending":true,"confirmed":false,"active":false,"permanent":false}],"splitStatus":0}" received
V 13:05:25.220 [McuMgr] Writing characteristic da2e7828-fbce-4e01-ae9e-261174997c48 (WRITE COMMAND)
D 13:05:25.225 [McuMgr] gatt.writeCharacteristic(da2e7828-fbce-4e01-ae9e-261174997c48)
I 13:05:25.233 [McuMgr] Data written to da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 02-00-00-02-00-00-00-05-BF-FF
A 13:05:25.241 [McuMgr] "Operation: WRITE
Flags: 0
Length: 2
Group Id: 0 (OS)
Sequence Num: 0
Command Id: 5 (RESET)
Message: {}" sent
I 13:05:25.299 [McuMgr] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 03-00-00-02-00-00-00-05-BF-FF
A 13:05:25.329 [McuMgr] "{}" received
D 13:05:26.020 [McuMgr] [Callback] Connection state changed with status: 8 and new state: 0 (DISCONNECTED)
D 13:05:26.023 [Callback] Connection state changed with status: 8 and new state: DISCONNECTED (0)
E 13:05:26.023 Error 8 (0x8): GATT CONN TIMEOUT
I 13:05:26.023 Disconnected
W 13:05:26.105 [McuMgr] Error: (0x8): GATT CONN TIMEOUT
D 13:05:26.129 [Broadcast] Action received: android.bluetooth.device.action.ACL_DISCONNECTED
I 13:05:26.144 [McuMgr] Disconnected
D 13:05:26.159 [McuMgr] gatt.close()
V 13:05:26.192 [McuMgr] Connecting...
D 13:05:26.202 [McuMgr] gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE)
D 13:05:53.785 [McuMgr] [Callback] Connection state changed with status: 0 and new state: 2 (CONNECTED)
D 13:05:53.786 [Broadcast] Action received: android.bluetooth.device.action.ACL_CONNECTED
I 13:05:53.809 [McuMgr] Connected to F3:5E:20:33:B0:0D
D 13:05:53.822 [McuMgr] wait(300)
V 13:05:54.154 [McuMgr] Discovering services...
D 13:05:54.162 [McuMgr] gatt.discoverServices()
I 13:05:55.177 [McuMgr] Services discovered
V 13:05:55.205 [McuMgr] Primary service found
V 13:05:55.230 [McuMgr] Requesting new MTU...
D 13:05:55.238 [McuMgr] gatt.requestMtu(515)
I 13:05:55.329 [McuMgr] MTU changed to: 252
D 13:05:55.339 [McuMgr] gatt.setCharacteristicNotification(da2e7828-fbce-4e01-ae9e-261174997c48, true)
V 13:05:55.351 [McuMgr] Enabling notifications for da2e7828-fbce-4e01-ae9e-261174997c48
D 13:05:55.359 [McuMgr] gatt.writeDescriptor(00002902-0000-1000-8000-00805f9b34fb, value=0x01-00)
I 13:05:55.426 [McuMgr] Data written to descr. 00002902-0000-1000-8000-00805f9b34fb, value: (0x) 01-00
I 13:05:55.433 [McuMgr] Notifications enabled
V 13:05:55.470 [McuMgr] Writing characteristic da2e7828-fbce-4e01-ae9e-261174997c48 (WRITE COMMAND)
D 13:05:55.476 [McuMgr] gatt.writeCharacteristic(da2e7828-fbce-4e01-ae9e-261174997c48)
I 13:05:55.481 [McuMgr] Data written to da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 02-00-00-0B-00-01-00-00-BF-67-63-6F-6E-66-69-72-6D-F5-FF
A 13:05:55.487 [McuMgr] "Operation: WRITE
Flags: 0
Length: 11
Group Id: 1 (IMAGE)
Sequence Num: 0
Command Id: 0 (STATE)
Message: {"confirm":true}" sent
I 13:05:55.579 [McuMgr] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 03-00-00-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-34-2E-31-64-68-61-73-68-58-20-8A-B4-65-7D-20-CD-52-CB-8D-66-4E-D9-15-7D-A0-EC-41-06-02-0C-E0-84-F8-62-2F-D9-76-A1-DB-27-31-21-68-62-6F-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-34-2E-31-64-68-61-73-68-58-20-20-2F-53-64-6E-8A-B9-87-B9-2D-19-54-7C-10-38-87-A8-20-35-11-E8-31-2C-7F-B3-2E-3E-E0-6E-08-21-B7-68-62-6F-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 13:05:55.586 [McuMgr] Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 73-00-FF
A 13:05:55.631 [McuMgr] "{"images":[{"slot":0,"version":"0.4.1","hash":"irRlfSDNUsuNZk7ZFX2g7EEGAgzghPhiL9l2odsnMSE=","bootable":true,"pending":false,"confirmed":true,"active":true,"permanent":false},{"slot":1,"version":"0.4.1","hash":"IC9TZG6KuYe5LRlUfBA4h6ggNRHoMSx/sy4+4G4IIbc=","bootable":true,"pending":false,"confirmed":false,"active":false,"permanent":false}],"splitStatus":0}" received
V 13:05:55.659 [McuMgr] Disconnecting...
D 13:05:55.675 [McuMgr] gatt.disconnect()
D 13:05:55.692 [McuMgr] [Callback] Connection state changed with status: 0 and new state: 0 (DISCONNECTED)
I 13:05:55.716 [McuMgr] Disconnected
D 13:05:55.737 [McuMgr] gatt.close()
D 13:05:55.783 gatt.close()
D 13:05:55.786 wait(200)
V 13:05:55.991 Connecting to F3:5E:20:33:B0:0D...
D 13:05:55.992 gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE)
D 13:05:56.106 [Callback] Connection state changed with status: 0 and new state: CONNECTED (2)
I 13:05:56.106 Connected to F3:5E:20:33:B0:0D
V 13:05:56.141 Discovering services...
D 13:05:56.141 gatt.discoverServices()
D 13:05:57.277 [Callback] Services discovered with status: 0
I 13:05:57.277 Services discovered
V 13:05:57.308 Generic Attribute (0x1801)
- Service Changed [I] (0x2A05)
Client Characteristic Configuration (0x2902)
Generic Access (0x1800)
- Device Name [R W] (0x2A00)
- Appearance [R] (0x2A01)
- Peripheral Preferred Connection Parameters [R] (0x2A04)
Battery Service (0x180F)
- Battery Level [R] (0x2A19)
Unknown Service (b65452a2-66a6-418a-cc40-31d4da2db50b)
- Unknown Characteristic [R W] (4d853009-03b8-f6a6-3643-307a87f67bac)
Current Time Service (0x1805)
- Current Time [N R W] (0x2A2B)
Client Characteristic Configuration (0x2902)
Unknown Service (52e2788e-5525-81b3-604c-a378379128bf)
- Unknown Characteristic [N R W] (704718fd-ffc2-b79c-5940-bbb0bef9d1b5)
Client Characteristic Configuration (0x2902)
Device Information (0x180A)
- Model Number String [R] (0x2A24)
- Manufacturer Name String [R] (0x2A29)
- Serial Number String [R] (0x2A25)
- Firmware Revision String [R] (0x2A26)
- Hardware Revision String [R] (0x2A27)
Unknown Service (00001523-ca77-eca5-6347-d8cb280e2c68)
- Unknown Characteristic [R W] (00001524-ca77-eca5-6347-d8cb280e2c68)
- Unknown Characteristic [N R] (00001525-ca77-eca5-6347-d8cb280e2c68)
Client Characteristic Configuration (0x2902)
Tx Power (0x1804)
- Tx Power Level [R] (0x2A07)
SMP Service (8d53dc1d-1db7-4cd3-868b-8a527460aa84)
- SMP Characteristic [N WNR] (da2e7828-fbce-4e01-ae9e-261174997c48)
Client Characteristic Configuration (0x2902)
D 13:05:57.309 gatt.setCharacteristicNotification(00002a05-0000-1000-8000-00805f9b34fb, true)
D 13:05:57.311 gatt.setCharacteristicNotification(00002a2b-0000-1000-8000-00805f9b34fb, true)
D 13:05:57.312 gatt.setCharacteristicNotification(704718fd-ffc2-b79c-5940-bbb0bef9d1b5, true)
D 13:05:57.314 gatt.setCharacteristicNotification(00001525-ca77-eca5-6347-d8cb280e2c68, true)
D 13:06:21.226 [Callback] Connection state changed with status: 8 and new state: DISCONNECTED (0)
E 13:06:21.226 Error 8 (0x8): GATT CONN TIMEOUT
I 13:06:21.227 Disconnected
D 13:06:21.439 [Broadcast] Action received: android.bluetooth.device.action.ACL_DISCONNECTED
i tried finding the same commands of the mcumgr cli (image list -> image upload -> image list -> image test -> reset -> confirm, as explained here: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/device_mgmt/mcumgr.html#mcumgr-cli ) in the nrfConnect and could not really find all the correlations,
also when printing the commands while running the mcumgr cli, i read some data which i don't understand it's origen or meaning, for example, for the image confirm command, i see the device receives this bytes:
/// edit this function in the smp_ct.c file:
static ssize_t smp_bt_chr_write(struct bt_conn *conn,
const struct bt_gatt_attr *attr,
const void *buf, uint16_t len, uint16_t offset,
uint8_t flags)
{
struct smp_bt_user_data *ud;
struct net_buf *nb;
LOG_INF("in smp_bt write UUID - %d\n",attr->uuid->type);
LOG_INF("in smp_bt write len - %d\n",len);
LOG_INF("in smp_bt offset - %d\n",offset);
LOG_INF("in smp_bt buff ");
if( 100 > len)
{
for( uint16_t i = 0; i < len; i++)
{
LOG_INF("%x, ", ((uint8_t*)buf)[i]);
}
}
...
///////// resulting with this prints:
I: in smp_bt write UUID - 2
00>
00> I: in smp_bt write len - 24
00>
00> I: in smp_bt offset - 0
00>
00> I: in smp_bt buff
00> I: 2,
00> I: 0,
00> I: 0,
00> I: 10,
00> I: 0,
00> I: 1,
00> I: 42,
00> I: 0,
00> I: a2,
00> I: 67,
00> I: 63,
00> I: 6f,
00> I: 6e,
00> I: 66,
00> I: 69,
00> I: 72,
00> I: 6d,
00> I: f5,
00> I: 64,
00> I: 68,
00> I: 61,
00> I: 73,
00> I: 68,
00> I: f6,
00> I: Swap type: revert
00> I: Swap type: revert
00> I: Swap type: none
00> I: Swap type: none
which correlats to the prints i take in running the mcumgr cli:
sudo ./mcumgr --conntype ble --connstring 'peer_id=e8:7d:90:dc:db:65' image confirm
in npm, BodyByets, data = []
in npm, BodyByets, data = [162 103 99 111 110 102 105 114 109 245 100 104 97 115 104 246]
in sens util TxRxMgmt sesn: &{cfg:{MgmtProto:0 AdvFilter:0x71dac0 PreferredMtu:512 ConnTimeout:10000000000 ConnTries:3 WriteRsp:false TxFilter:<nil> RxFilter:<nil>} cln:0xc00028a0a0 txvr:0xc0000d5b80 mtx:{state:0 sema:0} attMtu:252 nmpReqChr:0xc0003200b0 nmpRspChr:0xc0003200b0 resReqChr:<nil> resRspChr:<nil>}
in sens util TxRxMgmt nmpMsg: &{Hdr:{Op:2 Flags:0 Len:16 Group:1 Seq:66 Id:0} Body:0xc000180210}
in txReq rsp: &{NmpBase:{hdr:{Op:3 Flags:0 Len:244 Group:1 Seq:66 Id:0}} Rc:0 Images:[{NmpBase:{hdr:{Op:0 Flags:0 Len:0 Group:0 Seq:0 Id:0}} Image:0 Slot:0 Version:0.5.0 Hash:[71 18 86 1 155 68 31 143 2 103 144 173 169 105 192 24 44 58 29 41 99 245 38 59 25 98 241 144 250 41 187 131] Bootable:true Pending:false Confirmed:true Active:true Permanent:false} {NmpBase:{hdr:{Op:0 Flags:0 Len:0 Group:0 Seq:0 Id:0}} Image:0 Slot:1 Version:0.5.0 Hash:[244 2 53 28 132 194 234 206 9 167 41 163 57 194 86 134 182 89 167 49 224 148 50 208 224 104 162 159 41 137 176 166] Bootable:true Pending:false Confirmed:false Active:false Permanent:false}] SplitStatus:N/A}
Images:
image=0 slot=0
version: 0.5.0
bootable: true
flags: active confirmed
hash: 471256019b441f8f026790ada969c0182c3a1d2963f5263b1962f190fa29bb83
image=0 slot=1
version: 0.5.0
bootable: true
flags:
hash: f402351c84c2eace09a729a339c25686b659a731e09432d0e068a29f2989b0a6
Split status: N/A (0)
the 'body' bytes in the above example are not clear, is it somesort of calculation or key or what ? can you help with understanding the mcumgr protocol behind, as the nrfConnect is also using it (i have already went through related smp_bt info: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/samples/subsys/mgmt/mcumgr/smp_svr/README.html there is no such info there, also not in the mcumgr ripo github.com/.../go.mod)
also not clear to me if the commands sent and replied as a json or byte[]
hope to read from you soon
best regards
Ziv
