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What needs to pay attention on entering Power-down mode in an interrupt handler? Issue Date：2018-01-16
If the NVIC setting is default, entering Power-down mode in an interrupt handler will cause the failed to wake up condition. By default, all interrupts have the same NVIC priority, and there is a conflict between “after entering Power-down mode at interrupt A, the MCU needs to wait for interrupt B to wake up; however, the MCU cannot be woken up by interrupt B until interrupt A has been executed”. Therefore, please do not enter Power-down mode in an interrupt handler unless you change the NVIC priority
| Products: | Microcontrollers ,8bit 8051 MCUs ,Arm Cortex-M0 MCUs ,Arm Cortex-M4 MCUs |
|---|---|
| Applications: | |
| Function: | Peripherals,ARM,Interrupt,NVIC,System Operation,Power-down,Wake-up |