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When I was configuring external interrupts, I found that there are only 32 eirqs provided in the configuration tool, and each eirq corresponds to multiple pins. Configuring external interrupts for multiple pins in the same eirq shows an error, and some of them are out of the eirq range,
Does it mean that the S32K3 doesn't configure external interrupts for all the pins, and it can't configure external interrupts for all of the pins at the same time. I can configure interrupts for all pins in S32K144.
Hi @xuanming
In S32K3 devices, only certain pins support external interrupt functionality. You can see which pins are interrupt‑capable in the Pins tool of S32 ConfigTools and in the MCU IOMUX file provided with the S32K3 Reference Manual.
It is possible to assign different external interrupts to different pins, as long as each pin maps to a different EIRQ channel. However, it is not possible to configure multiple pins that share the same EIRQ number as external interrupts at the same time, because this would create conflicts; each EIRQ channel can only be assigned to one pin at a time.
BR, VaneB