Do I need to clear the pending status of an interrupt in the interrupt service routine of an ARM Cortex-M0 MCU?
Could not find information on this on the web.
Electronic – To Clear or not to clear ARM Cortex-M NVIC interrupt pending
arminterruptsmicrocontroller
Related Topic
- Electronic – Same Priority Interrupt on ARM Cortex M0
- Electronic – Managing addresses of interrupt service routines and functions of the program in cortex M0
- Electronic – Why ARM Cortex M0 prints incorrectly Hello World on UART
- Electronic – ARM Cortex-M3 Interrupts and Interrupt service routine &interrupt handler
- Electronic – Cortex M0 – Defining an interrupt routine in assembly
Best Answer
No, you don't need to clear the pending status in the NVIC, that is done automatically when the interrupt is serviced (see Joseph Yiu, The Definitive Guide to ARM Cortex-M3 and Cortex-M4 Processors, 3rd Edition, page 247).
However, you may need to clear the condition causing the interrupt on the specific peripheral.