Advertising Time Frame control

[p143]

Hi All

Working with my nRF52840 DK board and running the BLE Central & Peripheral\ Experimental CLI interface example, I customized my DEVICE_NAME to get it advertised as soon as the board is switched on. I noticed that the device stops advertising after around 150 seconds. I also read that this is due to BT 5 Specifications, but in my project, I need this name permanently advertised every time the device gets on and till switched off. Which expression/sentence/command should I edit and in which file of the example could I find it, so this modification could, later on, be part of the device firmware by executing a Secure DFU Bootloader process?

Thanks in advance

[bjorn-spockeli]

Which SDK version are you using, SDk v15.2.0?

If its v15.2.0 then you should only have to change the APP_ADV_DURATION definition in main.c from 

#define APP_ADV_DURATION                18000

to 

#define APP_ADV_DURATION                0

for the nRF52840 to advertise without any timeout. 

I didnt quite understand the part about DFU. Could you elaborate?

Best regards

Bjørn

[p143]

Hi.

Thanks Bjørn. Everything went fine.

Regarding your question about DFU, I did mean that after setting APP_ADV_DURATION to zero and making sure it works fine in my PCA10056 board, I will perform a Secure DFU procedure to incorporate this change into several modules I have.

Best regards

Juan