Bluetooth connection and serial port sending

[xiaobai]

Now I come across such a problem, when the device is sending serial port data, at the same time to the mobile phone and bluetooth connection for related business processing, the bluetooth will be disconnected for a timeout.Now suspect is due to the serial port send interrupt events caused, what can be resolved?

[Sigurd]

xiaobai said:

May I ask if you have any good comments or Suggestions to offer us to solve this problem?

 If you are setting a very low value for the connection supervisory timeout(CONN_SUP_TIMEOUT), it might help to increase it. Try 4 seconds.

It also important that your antenna is properly tuned, and that you follow our reference design. If you create a new private case, we can review your schematic and gerber files.

[xiaobai]

1221332.rar

My connection timeout monitor is set to 4s, but it will still disconnect when NB sends a message.In the above compression package, there are corresponding mainboard and NB circuit diagram and gerber file, please help to analyze it, thank you.

[Sigurd]

As mentioned, please create a new case for the schematic/gerber review.

https://devzone.nordicsemi.com/support/add