DFU RECEIPT_NOTIFICATION

[Gabriel Gabor]

Hi,

I'm trying to run the OTA DFU for the nrf52832 (sdk v14.2, softdevice v5.1) from multiple devices.

In the OTA script, I enabl the receipt notifications and it works fine on multiple platforms (iPad, Amazon Fire 8, MacBook Pro 15) but on some devices (MacBook Air) I don't receive the receipt notification as expected so the ota gets blocked.

The script writes (without waiting for notification) 20 packets and then waits for the receipt notification. Unfortunately on the MacBook Air I don't receive the receipt notification. The only way I was able to make it work on this device is by adding a 10ms delay between packets. Not sure what I'm doing wrong, I would try to avoid adding the delay in the final version.

Thanks,

Gabriel

[bjorn-spockeli]

Hi Gabriel, 

do you see the issue if you lower the number of packets in between the receipt notifications, e.g. set it to 10 or 5?
Are you able to preform a sniffer trace of the on air traffic using a Bluetooth Protocol sniffer like Ellisys or using the nRF Sniffer v2. 

Best regards

Bjørn 

[Gabriel Gabor]

Hi Bjørn,

I lowered the packets in between the receipt notifications to 15 and it seems to work on the Mac Book Air, I'm trying more devices now, I'll make sure it works on multiple devices and then I'll verify your answer.

Thanks a lot for your reply!

Regards,

Gabriel