heartbeat example hanging

[Hugo Habicht]

Hi All,

I am having a problem trying out one of the examples provided by Nordic. It is the "ble_app_hrs_pca10056_s140_uart" running on an nRF52840DK board. i programmed the S140 softdevice first and then compiled and downloaded the example software (from sdk version 17).

It is hanging in "ble_stack_init()". The function "ser_sd_rsp_wait()" never returns "m_rsp_wait" is always "true". What is it supposed to do? Is there user intervention required at this stage? My understanding is that this example is starting advertising when run. Is there any documentation available for those functions or what this black box "softdevice" is supposed to do? Is there source code available for those "softdevices"?

Any help appreciated.

Kind regards,

[Susheel Nuguru]

If you are using serialization example then it should have worked out of the box. 

What is the configuration of the host device that is driving the UART? Is it anothre MCU or PC?

[Hugo Habicht]

Hi,

yes, thank you, I had assumed already that it should work. But it does not.

Uart is connected to PC. What has the UART connection to do with the embedded side hanging?

Can you answer ANY of my questions above?

Kind Regards,

[Susheel Nuguru]

How are you driving the UART from the PC side? Are you running the pc-ble-driver to drive the UART commands for the serialization?