DFU buttonless with SDK11

[Jorge]

Hi all,

I have a custom board with a nRF51 and a DSP connected to eachother (SPI, UART and I2C) and since I have no connection to the nRF directly or any buttons I need to make upgrades on the nRF via serial DFU. To accomplish this I want to implement the DFU buttonless but I am using the SDK11 and SD130. Is there any example of this using the SDK11?

I always worked with SDK11, and I am not sure if it is better to update my code to work on the SDK12 or check the "dfu_buttonless_example" and try to downgraded it to the SDK11:

Does anyone have a idea what is the better option? Does the example work with the SDK11 without any changes?

[Hung Bui]

Hi Jorge,

It's always suggested to use the latest SDK. But if you want to use SDK v11 , you can find the buttonless example in \examples\ble_peripheral\ble_app_hrs\pca10028\s130_with_dfu

Documentation is on info center as well.

[Jorge]

The HCI (UART) example that you mentioned is it on the SDK? I couldn't find it there, I only found the "hci_dfu_send_hex" that contains the hex files to be loaded to the boards.

I have checked the the website that you linked and from what I saw the command sequence begins then with 0xC0 can I assume that this is the Command Id for the dfu transfer?

And I have to send the 4 packets (start, init, data and stop)?