8 years, 2 months ago.

Custom Nordic S110 bootloader

Hi,

I have a project which is targeted at the BLE Nano which has a Nordic nRF51822 chip on it. I've followed the instructions here: https://developer.mbed.org/forum/team-63-Bluetooth-Low-Energy-community/topic/17027/ to switch to the S110 soft device.

This works, and I can get DFU to work also using the bootloader which comes with the export from mbed.

However I need to modify the bootloader code slightly and am struggling to get something to work. I've tried using the bootloader code from the official Nordic SDK, but my application which has been compiled offline using gcc doesn't work (it just sits in the DFUTarg state).

I found the nrf5x-dfu-bootloader repo on GitHub and have started the process of trying to make it compile (am now at linker errors). Is this the code I should be using? Basically I would like the code for the S110 boot loader hex file which is in the mbed export so I can make a few modifications for my project.

Thanks Shaun

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