BLE interface cant be configured for the NRF52840 development board

[Shri1395]

Hi,

I am trying to send some data over bluetooth, using the nrf52840, and i am using the ble_app_uart example to send the data. I am not receiving any data, when i connect to our software. Are there any specific changes i need to make in order to send some data over bluetooth for the nrf52840 DK board?

[Susheel Nuguru]

Hi Shreekant,

It is pretty hard to say what went wrong based on the description you gave. There are few questions that you need to ask yourself

1. Did you flash the softdevice and the application correctly? 
2. How are you testing the data to be received on the other end? Is your receiver a phone or another DK? If it is another DK, then did you make sure that you there is proper SD and application to receive and decode the ble_app_uart data?
3. Did you check with the BLE sniffer to see if the packets are transmitted in the air or not?
4. If they are transmitted in the air, then there is a problem in the receiving side, if they are not transmitted at all, then the problem is on the transmitting side.

[Shri1395]

Hi Aryan,

I did flash the soft device and program correctly. 

We have a software which accepts the data in frames of data 20 bytes each. I have them lined up in the same format and it worked for the nrf52832. But i am using the same format for the nrf52840, and i am encountering problems in terms of sending the data.

I believe its with the transmitting side, since it does connect to the software, and it never sends anything.

[Susheel Nuguru]

Sreekanth,

This seems to be a issue in your application logic. If you clearly see in debugging that the transmit code is being executed without returning any error and still do not see any air packets using an air sniffer, then I think we need to look into SD issues. I have not heard anything like that before in softdevice, so i really think that this is something in your application logic.

Start debugging in the debug mode and sniff the packets in air.