I don't want to setup the vector table for all my external interrupts. For instance I only need the timer4 IRQhandler at IRQn 30. How can I make an offset in the table? Is this necessary?
WFI Instruction
Hi,
I want to use the wfi instruction in my code. I'm sending a command to a module and wait for the reply.
I have configured UART communication with the module. Will it be good to use wfi() instruction? I know that it will turn the cpu to power down…
- over 3 years ago
- System
- Embedded forum
Wake-up time from WFI
How long does it take to wake up from from WFI once an interrupt occurs?
What system parameters does the answer depend on?
What's turned off in the CPU (and elsewhere) while WFI is underway?
I'm using NXP i.MXRT1050 (Cortex M7) and I'm experiencing…
- over 1 year ago
- System
- Embedded forum
Cutting Through the Confusion with Arm Cortex-M Interrupt Priorities
Arm Cortex-M processors offer very versatile interrupt priority management, but unfortunately, the multiple priority numbering conventions used in managing the interrupt priorities are often counter-intuitive, inconsistent, and confusing, which can lead…
- over 6 years ago
- System
- Embedded blog