S32KのトピックRe: control intterupt timer.

control intterupt timer.

rlaxortn — Tue, 03 Mar 2026 00:40:00 GMT

i am using s32ds, RTD version is 4.0.0. mcu is s32k314.

i use timer interrupt by PIT.

1. Is there a register to turn the interrupt timer on and off?

except by PIT function(ex, Pit_Ip_StartChannel, Pit_Ip_StopChannel)

2. i wanna make source code for control interrupt timer except PIT Function.

like (__asm volatile ("cpsid i"), __asm volatile ("cpsie i")). but it is not work. how do i?

thanks to help

Re: control intterupt timer.

VaneB — Thu, 12 Mar 2026 20:23:22 GMT

Hi @rlaxortn

You can directly manipulate the PIT registers to disable the interrupt if you prefer not to use the APIs.

Regarding the inline assembly instruction __asm volatile ("cpsid i"); On ARM Cortex‑M devices, this instruction sets the PRIMASK register, which globally disables all maskable interrupts. It does not disable an individual interrupt source.

BR, VaneB