How to retain variables data after disconnecting from the device?

RE: How to retain variables data after disconnecting from the device?

Kenneth — Wed, 30 May 2018 14:13:35 GMT

The easiest may be to use a button that will disconnect the link and start advertisement again, instead of doing a hardware reset, which for sure will reset the variables.

RE: How to retain variables data after disconnecting from the device?

sankeerthan — Wed, 30 May 2018 06:10:20 GMT

Yes Kenneth,i am pressing reset button on my nRF52840 board because i need to connect other peripheral(without reset i cannot scan again and connect to other device).

Here my requirement is to connect multiple peripherals which has different device names and collect data(characteristics values) of one peripheral store in central and pass these data to another peripheral.

Is there any possibility to store global data even after reset?

How multiperipheral_central example work with different device names?

RE: How to retain variables data after disconnecting from the device?

Kenneth — Tue, 29 May 2018 13:38:02 GMT

Data in a variable can't be "lost", you are either overwriting the data somewhere in your application, or you are going to system OFF (for instance calling sd_power_system_off()), or you have an assert. If you have an assert then the application typically will do a soft reset (for instance calling NVIC_SystemReset()) in the assert callback handler.