AnsweredAssumed Answered

QN9021 cannot run application in RAM

Question asked by Leaf Lee on Apr 26, 2018
Latest reply on May 3, 2018 by Leaf Lee

I am new to QN902x and BLE 4.0/4.1/4.2, now I develop a project of QN9021 on IAR ARM 8.11.3.  After I start debug by clicking the sub menu of "Project/Download and Debug". QN9021 doesn't run my application, just is stuck on the PC of 0x01002574 or 0x01002576, which is a ROM address, the content is 4 byte of 0xffffffff. And I think 0xffffffff should not be a instruction/instructions of CPU.

Is my application not downloaded into the chip of QN9021 by Jlink when clicking dubug? Either due to IAR setting, or hardware problem?  Any suggestions will be appreciated!

The IAR debug snapshot is attached.