How to multiple times update program in secure OTA

[Nilesh Bhavsar]

Hi,

I had done secure OTA in my custom board using SDK12.2.0 with S130 v2.0.1 softdevice. But when i am trying to update the same for multiple times then its not happened.

Which configuration needed for multiple times update? Any example is availble in SDK12.2.0?

[Nilesh Bhavsar]

Yes, Buttonless DFU service added in my application.

[bjorn-spockeli]

Could you start a debug session in the bootloader after you have performed the first DFU, press run without setting any breakpoints, the bootloader shoudl then start the application. Now set a breakpoint in the bootloaders main and then start a DFU and see if you hit this breakpoint.

[Nilesh Bhavsar]

No, I am not using breakpoints in anywhere my boot loader as well as application file.

[bjorn-spockeli]

Im not asking if you are using breakpoints, I am asking if you can start a debug session and set a breakpoint according to the instructions in my previous comment.

[Nilesh Bhavsar]

Hi,

Please find below log of my activity in nrfLogger:

Second time update:

nRF Connect, 2017-07-31
nilesh (DB:A7:5E:8D:30:74)
V	13:32:00.386	Connecting to DB:A7:5E:8D:30:74...
D	13:32:00.386	gatt = device.connectGatt(autoConnect = false)
D	13:32:00.604	[Callback] Connection state changed with status: 0 and new state: CONNECTED (2)
I	13:32:00.604	Connected to DB:A7:5E:8D:30:74
D	13:32:00.617	[Broadcast] Action received: android.bluetooth.device.action.ACL_CONNECTED
V	13:32:00.623	Discovering services...
D	13:32:00.623	gatt.discoverServices()
D	13:32:00.655	[Callback] Services discovered with status: 0
I	13:32:00.657	Services discovered
V	13:32:00.682	Generic Access (0x1800)
- Device Name [R W] (0x2A00)
- Appearance [R] (0x2A01)
- Peripheral Preferred Connection Parameters [R] (0x2A04)
Generic Attribute (0x1801)
Experimental Buttonless DFU Service (8e400001-f315-4f60-9fb8-838830daea50)
- Experimental Buttonless DFU [N] (8e400001-f315-4f60-9fb8-838830daea50)
   Client Characteristic Configuration (0x2902)
V	13:32:10.303	[DFU] DFU service started
V	13:32:10.304	[DFU] Opening file...
I	13:32:10.430	[DFU] Image file opened (28736 bytes in total)
D	13:32:10.430	[DFU] wait(1000)
D	13:32:11.446	[DFU] wait(1000)
V	13:32:12.479	[DFU] Connecting to DFU target...
D	13:32:12.480	[DFU] gatt = device.connectGatt(autoConnect = false)
I	13:32:12.480	[DFU] Connected to DB:A7:5E:8D:30:74
V	13:32:12.480	[DFU] Discovering services...
D	13:32:12.480	[DFU] gatt.discoverServices()
I	13:32:12.496	[DFU] Services discovered
D	13:32:12.545	[DFU] wait(1000)
W	13:32:13.553	[DFU] Application with buttonless update found
V	13:32:13.554	[DFU] Jumping to the DFU Bootloader...
V	13:32:13.554	[DFU] Enabling notifications for 8e400001-f315-4f60-9fb8-838830daea50
D	13:32:13.554	[DFU] gatt.setCharacteristicNotification(8e400001-f315-4f60-9fb8-838830daea50, true)
D	13:32:13.554	[DFU] gatt.writeDescriptor(00002902-0000-1000-8000-00805f9b34fb, value=0x01-00)
I	13:32:13.899	[DFU] Data written to descr.8e400001-f315-4f60-9fb8-838830daea50, value (0x): 01-00
V	13:32:13.899	[DFU] Notifications enabled for 8e400001-f315-4f60-9fb8-838830daea50
A	13:32:13.899	[DFU] Notifications enabled
D	13:32:13.899	[DFU] wait(1000)
V	13:32:14.968	[DFU] Writing to characteristic 8e400001-f315-4f60-9fb8-838830daea50
D	13:32:14.969	[DFU] gatt.writeCharacteristic(8e400001-f315-4f60-9fb8-838830daea50)
V	13:32:40.973	Disconnecting...
D	13:32:40.973	gatt.disconnect()
D	13:32:40.976	[Callback] Connection state changed with status: 0 and new state: DISCONNECTED (0)
I	13:32:40.976	Disconnected
D	13:32:40.979	gatt.refresh() (hidden)
D	13:32:40.980	gatt.close()
D	13:32:40.982	wait(200)

Please share your suggestion.