BMD 350 BLE APP UART testing using Segger embedded studio

[parthee]

BLE app uart code write to the BMD 350 device. BLE is disconnected. 

If any reasons? 

How to configure the TX and RX pins ? when i change the pins, fatal error will come. 

Hardware pins

Rx                      - 20

Tx                       - 19

RTS                    -  21

CTS                   -   22

Thanks,

Parthiv

[awneil]

parthee said:

fatal error will come

please give some more details on that

Also give a link to the module. Doesn't the manufacturer provide any examples or anything to get you started?

[parthee]

www.u-blox.com/.../BMD-350_DataSheet_UBX-19033354.pdf

[Karl Ylvisaker]

Hello Parthiv,

BLE app uart code write to the BMD 350 device. BLE is disconnected. 

Please describe the behavior you are seeing. The more details you provide us, the easier it will be for us to help you, and the faster your issue may be resolved.
Does the application start at all, and is it discoverable for other devices? Do you mean to say that you are able to connect, but after some time or condition, the connection is broken? What device are you using for your central, is it the nRF Connect for Desktop/smartphone application? If so, what does its logs say when the disconnect happens?

when i change the pins, fatal error will come. 

Please make sure that you have DEBUG defined in your preprocessor defines, like shown in the included image.

This will make your logger output a detailed error message whenever a non-NRF_SUCCSS error code is passed to an APP_ERROR_CHECK.

How to configure the TX and RX pins ?

The pins are configured as part of the UART initialization. You can change their configuration there, but please make sure to check with your module's datasheet that the pins you intend to use are available, and that they are not designated low-frequency pins in the nRF52832 SoC Pin Assignment documentation.

Best regards,
Karl