Migrating from SDK 12.3 to SDK 15.3

Question

Hi I am migrating my application from SDK - 12.3 to SDK 15.3 version. 
 My application also uses FreeRTOS so I am referring to the ble_app_hrs_freertos example code. 
 I have started with taking the changes from sdk_config.h and FreeRTOSConfig.h. 
 This changes didn't create any problem. 
 
 When I try to take the linker settings the as it is from 12.3, the application loading gets failed. 
 
 Is there any document which I need to refer before starting the migration. 
 
 Please help. 
 
 Thanks in advance,

Vidar Berg · Accepted Answer

Hi, 
 I think it's better if you start with the linker script used by the BLE Freertos example in SDK 15.3.0. Softdevice v.6 is larger and will require a higher flash start address for your application, and possibly more RAM compared to older Softdevices. 
 I'm not familiar with CMSIS OS. It looks like it's an attempt to make a standard RTOS API for use with existing RTOSes such as Freertos and Zephyr.

Migrating from SDK 12.3 to SDK 15.3

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