irq_set_priority() function

Set specified interrupt's priority \if rp2040_specific Only the top 2 bits are significant on ARM Cortex-M0+ on RP2040. \endif \if rp2350_specific Only the top 4 bits are significant on ARM Cortex-M33 or Hazard3 (RISC-V) on RP2350. Note that this API uses the same (inverted) ordering as ARM on RISC-V \endif

Syntax

Show:

Summary

Declaration

Definition

from irq.h:221

void irq_set_priority(uint num, uint8_t hardware_priority);

Implemented in irq.c:587

Arguments

Argument

Declared as

Description

num

uint

Interrupt number interrupt_nums

hardware_priority

uint8_t

Priority to set. Numerically-lower values indicate a higher priority. Hardware priorities range from 0 (highest priority) to 255 (lowest priority). To make it easier to specify higher or lower priorities than the default, all IRQ priorities are initialized to PICO_DEFAULT_IRQ_PRIORITY by the SDK runtime at startup. PICO_DEFAULT_IRQ_PRIORITY defaults to 0x80

Examples

irq_set_priority() is referenced by 1 libraries and example projects:

References

from examples

irq_set_priority() function

Syntax

Arguments

Examples

References

Call Tree

Data Use

Class Tree

Override Tree

Implementations

Instances

Lifecycle