Hi,
i have some selfmade boards, all of them do work without an emulator. they can be reconganized by Flash programer 1.75 but can not connect，also Forced mass Erase failed.
However， I can download and debug when using IAR. the board was able to broadcast during debugging and was not after resetted.
there was an intantaneous BLE signal appeared at the moment the board were powerd on or resetted.
i find that the 24M crystal oscillator, which is useful in boards of other project, does not work .
So, how can i figure out this problem so that i can get my boards work well.
the downloaded project is SimpleBLEPeripheral, no Edition
the IAR version is 7.40， chip version 2.3, BLE stack 2.1
Thank you for any response.
