Dual Bootloader -- DFU (BLE) + UART?

RE: Dual Bootloader -- DFU (BLE) + UART?

Mannu — Mon, 12 Mar 2018 06:58:40 GMT

Hello Tim Clark can you please tell me how to do DUAL BANK DFU in NRF51822.Please tell whole process and configuration.

Thanks.

RE: Dual Bootloader -- DFU (BLE) + UART?

danni — Fri, 02 Feb 2018 09:30:08 GMT

Hi Hung Bui, In nRF52832, SDK13.0.0, I just want combine BLE DFU and serial DFU in one project, when I add nrf_ble_dfu.c into bootloader_secure_serial demo, and modify some configuration items in sdk_config.h to support ble DFU. However, in combined project , BLE DFU can success, but serial DFU can't. Could you help me solve the problem?

thank you very much.

RE: Dual Bootloader -- DFU (BLE) + UART?

Hung Bui — Fri, 05 May 2017 10:56:05 GMT

@Arepa: The newer DFU bootloader made it even easier to have multiple transport layers when doing DFU. I haven't tried myself, but as I can see in the nrf_dfu_transport.c , all transport layers will be initialized via the use of dfu_trans section. So any transport layer that registered with DFU_TRANSPORT_REGISTER() will be used.

What you can do is to simply include both nrf_ble_dfu.c and nrf_serial_dfu.c to test.

Let me know if you face any trouble.

RE: Dual Bootloader -- DFU (BLE) + UART?

Arepa — Thu, 04 May 2017 19:00:38 GMT

Hey Hung, is possible make what @Mike and @DarrenBeckwith are trying using the SDK13? using the example BLE secure bootloader I cant find wheres it calls the BLE transport layer to make the same with the dfu_transport_serial.c

Thanks

RE: Dual Bootloader -- DFU (BLE) + UART?

Hung Bui — Thu, 16 Mar 2017 14:52:28 GMT

@Sourabh: You may need to make sure the memory buffer (hci_mem_pool) was configured correctly for each transport mode. They both have the file hci_mem_pool_internal.h inside ble_transport and hci_transport but the values configured inside are different.

If you configured them correctly but still have the problem, you may want to capture a sniffer trace to check what exactly fail.

RE: Dual Bootloader -- DFU (BLE) + UART?

Sourabh Barve — Thu, 16 Mar 2017 04:56:10 GMT

Hi Hung, I modified the dfu_transport.h, dfu_transport_serial.c, dfu_transport_ble.c and bootloader.c to have two transport options for DFU. I use the GPRGRET register to communicate the transport mode to bootloader through app. The serial DFU works great but the BLE/OTA DFU fails. Whenever I start the DFU through nRFToolbox app, the device enters the bootloader successfully but the update fails at 0% showing "Error: REMOTE DFU OPERATION FAILED". I have not modified the above files beside just changing the names of the functions (dfu_transport_update_start and dfu_transport_close) and added a #define for new GPREGRET pattern. I use SDK11.0 and nrf52832. Can you help me out?

RE: Dual Bootloader -- DFU (BLE) + UART?

Hung Bui — Mon, 06 Apr 2015 03:28:21 GMT

Hi Mike, I would suggest to try the legacy support for KEIL v5.x

After that you can install the nRF51 SDK without pack, where you can use the library directly as a file in the files tree and can modify it as you needed.

RE: Dual Bootloader -- DFU (BLE) + UART?

Mike — Thu, 02 Apr 2015 05:16:16 GMT

Hi Hung,

I am having trouble combining two different projects on Keil v5, with the software packs. I was thinking of modifying the source files for the libraries from the packs, dfu_transport_ble.c, dfu_transport_serial.c and bootloader.c, and then I will include both of the source files in the project. However as the way it is set up in the packs, I can only choose either to include serial or ble source file (it shows up as a variant). So just wondering what process you would follow to combine the two bootloaders?

Thanks! Mike

RE: Dual Bootloader -- DFU (BLE) + UART?

Hung Bui — Thu, 12 Mar 2015 13:13:48 GMT

Hi Darren,

You can find the SDK at this folder \examples\dfu\bootloader\pca10028 (SDK v8.0). There are 3 projects:

BLE DFU dual bank
Serial DFU dual bank
Serial DFU single bank

RE: Dual Bootloader -- DFU (BLE) + UART?

WestCoastDaz — Wed, 11 Mar 2015 21:08:28 GMT

Hung,

I am interested in this as well! Can you point me to the 2 projects you are referring to, I can't seem to find them.

Cheers, Darren

RE: Dual Bootloader -- DFU (BLE) + UART?

Hung Bui — Wed, 04 Feb 2015 15:35:11 GMT

Hi Tim,

We provided both solutions, UART and BLE. However, they are separated project and are not made to work together initially.

You may have to modify the source code to allow end customer to choose which type of transportation they want to use, switching a button for example.

There would be some work needed to combine the 2 projects, but I don't think it would be very difficult.