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In computing, a non-maskable interrupt (NMI) is a hardware interrupt that standard interrupt-masking techniques in the system cannot ignore. An NMI is often used when response time is critical or when an interrupt should never be disabled during normal system operation. Such uses include reporting non-recoverable hardware errors, system debugging and profiling, and handling of special cases like system resets.
Terminal device charging mode switching control method and device, equipment and storage medium
The application provides a terminal device charging mode switching control method and device, equipment and storage medium, the method is applied to the terminal device with charging input and reverse power supply function, the terminal includes application processor, microcontroller and notification control circuit connected with both, the circuit is provided with first and second two notification channels, respectively connecting the non-maskable interrupt pin and general pin of application processor. In the above method, the microcontroller is responsible for the device type and working mode identification when the external device is connected; when the first type of emergency event is identified, the non-maskable wake-up interrupt signal is sent to the application processor through the first channel, and the application processor is forced to wake up for processing; when the second type of ordinary state event is identified, the state update signal is sent to the application processor through the second channel, and the signal only updates the state register without triggering the interrupt to wake up the application processor in sleep.
Owner:SHENZHEN JIUZHOU HUAKE COMM CO LTD