https://devzone.nordicsemi.com/f/nordic-q-a/18740/nrf52832-pca10040-if-another-task-is-executed-it-is-reset-rebootI added a task to ble_app_hrs_freertos. The soft device was burned. The address is in the default state. (RAM:0x20002128 ROM:0x1f000) I reset the total heap size. (#define configTOTAL_HEAP_SIZE ( 42*1024 )) The SDK version is 12.2.0. en-USTelligent Community 13Thu, 05 Jan 2017 08:37:02 GMThttps://devzone.nordicsemi.com/thread/72358?ContentTypeID=1Thu, 05 Jan 2017 08:37:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9ab19316-11ba-419d-80c8-284cfdc50cedSusheel Nuguru<p>Hi, You have set the total heap size to be 42KB, do you have that much RAM available for your application? Clearly FreeRTOS is not able to assign memory to this task.</p><div style="clear:both;"></div>