Tool/software:
The customer found that the external 32.768 of MSP6736 sometimes can't work, and later investigation revealed that it is related to the ADC connected to the P1.1 port.
If a 2.2V voltage is applied first on P1.1 and the MCU is powered on, the internal crystal oscillator can start oscillating and initialization can be performed, but it will fail to activate the external crystal oscillator when running, and the external crystal oscillator will not start oscillating.
If P1.1 port and MCU are powered on simultaneously, MSP4306736 does not work and the main function is not executed.
If P1.1 port and AD circuit are disconnected, it can work normally.
