Exported from mbed to Keil, BLE connects but no services

[James]

I'm having problems with a NRF51822 on a custom PCB. I've managed to get the SDK BLE samples working, HRS using Keil, JLink.

I was developing my solution with a MBED kit which works fine on the mkit board.

I tried to export the mbed file to keil and flashed. However, the custom board advertises and connects but the Android app cannot read the heart rate characteristic. The same happens when I export and flash other BLE samples from the mbed compiler. The app disconnects from the board with a write to descriptor fail.

Would be great to have some advice to get the mbed exports working. I flash softdevice first using NRFgo and as the custom board does not have the external 32khz crystal I changed a line in the mbed source to using the 16mhz RC which works fine on the mkit board.

Many thanks

edit:

The same thing occurs if I flash softdevice using nrfgo and then flash the mbed hex directly using j lite. Connect but no service.

Summary:

Mbed code on mkit works fine. SDK samples on custom PCB work fine. mbed code exported to keil, flashed to custom PCB does not work (connects, no HR chara). mbed hex flashed to custom PCB does not work (connects, no HR chara).

[Hung Bui]

Hi,

Have you made sure you have:

• Keil full version not the evaluation one

• Programmed softdevice v6.x not version 7.x

• Could you test with an example on mbed to see if it works. For example this http://developer.mbed.org/teams/Bluetooth-Low-Energy/code/BLE_LoopbackUART/

• Could you try to use nRF Master Control Panel app on Android to test and see how the service discovery is done. A sniffer trace would be very useful.