I am using MSP430F1101 with a 32.768kHz crystal. I have 100 samples fabricated but I find that 20% of them could not start. At the beginning of the firmware, I have a loop to lock the DCO frequency to2MHz using the external 32.768kHz as reference. I suspect the MSP430 cannot lock the DCO and stay in the loop forever.
Did anyone have this problem before?
Thanks for your help! Feilip