DFU on NRF52

RE: DFU on NRF52

Einar Thorsrud — Fri, 13 Nov 2015 06:52:06 GMT

It's good to hear it's working. I would be grateful if you could accept the answer by clicking the check mark to the left of it.

RE: DFU on NRF52

Vidar Berg — Thu, 12 Nov 2015 15:21:54 GMT

Yes, please have a look at question E in this FAQ for more details.

RE: DFU on NRF52

Andrea — Thu, 12 Nov 2015 14:58:15 GMT

Thanks! It is working now.

Is there a way to flash the application and the bootloader on the device in one go? Instead of flashing the bootloader and then do a first DFU with the application.

I'm just thinking that in production line this may be annoying since we need an extra step to do the first DFU.

Thanks

RE: DFU on NRF52

Einar Thorsrud — Thu, 12 Nov 2015 14:06:50 GMT

Most of the DFU stuff should be functional for the nRF52 in SDK 0.9.2, but not all. The HRM example project does not include project files using DFU (though the code is there when you define BLE_DFU_APP_SUPPORT as you did). The reason for this is probably that there is some work left there, but unfortunately the documentation does not reflect this.

There will be a new SDK release that addresses this at some point, but for now you can try to work your way around it.

After you have added the missing files to the project and defined BLE_DFU_APP_SUPPORT, you have to modify line 146 and 153 in components\libraries\bootloader_dfu\dfu_app_handler.c.

In both those lines you should replace NRF_UICR->BOOTLOADERADDR with *(uint32_t *)(0x10001014).

I have not tested this, but it should work.