This module provides a pw_chrono backend suitable for use with an RP2040-based board (e.g. Raspberry Pi Pico). This backend works with baremetal operation of a Pi Pico, and may be suitable for RTOS contexts with some additional configuration of the RTOS timer settings.

SystemClock backend#

The pw_chrono_rp2040:system_clock backend target implements the pw_chrono:system_clock facade by using the Pico SDK’s time API. This is backed by a 64-bit hardware timer that reports time-since-boot as microseconds. As the peripheral API in the Pico SDK expects microseconds, this is the most appropriate clock to use when interacting with peripherals.

See the pw_chrono documentation for pw_chrono for more information on what functionality this provides.