how to access device manager stored inforamtion ?

[chtsai]

Dear Sir,

I and new of development nRF51(256K/16K), I read some sdk docs, but need further information and help.

1. Would like to save some application information(parameters, configuration data etc.) into flash to keep the current setting of application and resue them in the power on initialization. How to achieve that ?

2. More further these information need to keep even when application FW is updated by DFU, how to do that ? (keep in the last page (address start at 0x3BC00) of applcation that before Bootcode 4K). becasue of DFU (Boot app) can reserved some last page of APP avoid being erased.

3. Where are the information (phys. address ) stored by the DM(Device manager) , a). how to access these inforamtion in application ? These information include Bonding Information ,Service/Protocol Information ,Application Information etc. Also b). what flash methods that DM to manager these information (pStorage module or rwa flash API ?) c). It can sharing these information (bonding info etc.) with DFU avoid being erased ?

Have examples code for these questions will be more helpful.

Thanks in advance.

[bjorn-spockeli]

1. You can use the Persistant Storage Manager or the Flash Data Storage module to store data in Non-volatile memory(i.e. flash).

2. You can preserve application data by setting the DFU_APP_DATA_RESERVED to the bumber of bytes(must be a multiple of the flash page size) define in dfu_types.h, see this Infocenter page.

3. The DM stores its data in the app data section, see this memory layout figure.

*a) There are functions in the Device Manager API that allows you to set and get the peer data stored by the DM, see this Infocenter page.

*b) The Device manager uses the pstorage module.

*c) Yes, the application can share the bonding information with the bootloader during DFU, see this Infocenter page.