According the the nRF Logger app on Android I get a GATT CONN TIMEOUT error when running the HRS demo code on a nRF51822 QFAAG2 device (with custom_board.h) and connecting via nRF Toolbox app. This consistently occurs after about 10 seconds of being connected.
The exact same HRS demo code (excepting custom_board.h) works perfectly on the PCA10028 dev board.
If I increase FIRST_CONN_PARAMS_UPDATE_DELAY to some big value, say 500s, I can maintain a connection and receive the heart rate + battery updates seemingly reliably for at least up to this time.
What is going on?
PS: this is the same board I had a problem with HF oscillator on...maybe related? devzone.nordicsemi.com/.../
*edit: Attached a log session from the Android device. This time I used nRF Master Control Panel and enabled battery notifications - this works fine. Then I disabled this, and enabled notifications on heart rate info - this results in error 8 after just a few updates. See attached log Log sessions 2015-06-10 14-54-44.txt
