Khoi Hoang
44c3602009
### Releases v1.2.0 1. Fix `multiple-definitions` linker error. Drop `src_cpp` and `src_h` directories 2. Add example [multiFileProject](examples/multiFileProject) to demo for multiple-file project. 3. Optimize library code by using `reference-passing` instead of `value-passing` 4. Update all examples
50 lines
2.3 KiB
C
50 lines
2.3 KiB
C
/****************************************************************************************************************************
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RPi_Pico_ISR_Timer.h
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For RP2040-based boards such as RASPBERRY_PI_PICO, ADAFRUIT_FEATHER_RP2040 and GENERIC_RP2040.
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Written by Khoi Hoang
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Built by Khoi Hoang https://github.com/khoih-prog/RPI_PICO_TimerInterrupt
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Licensed under MIT license
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The RPI_PICO system timer peripheral provides a global microsecond timebase for the system, and generates
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interrupts based on this timebase. It supports the following features:
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• A single 64-bit counter, incrementing once per microsecond
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• This counter can be read from a pair of latching registers, for race-free reads over a 32-bit bus.
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• Four alarms: match on the lower 32 bits of counter, IRQ on match: TIMER_IRQ_0-TIMER_IRQ_3
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Now even you use all these new 16 ISR-based timers,with their maximum interval practically unlimited (limited only by
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unsigned long miliseconds), you just consume only one RPI_PICO timer and avoid conflicting with other cores' tasks.
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The accuracy is nearly perfect compared to software timers. The most important feature is they're ISR-based timers
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Therefore, their executions are not blocked by bad-behaving functions / tasks.
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This important feature is absolutely necessary for mission-critical tasks.
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Based on SimpleTimer - A timer library for Arduino.
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Author: mromani@ottotecnica.com
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Copyright (c) 2010 OTTOTECNICA Italy
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Based on BlynkTimer.h
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Author: Volodymyr Shymanskyy
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Version: 1.2.0
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Version Modified By Date Comments
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------- ----------- ---------- -----------
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1.0.0 K Hoang 11/05/2021 Initial coding to support RP2040-based boards such as RASPBERRY_PI_PICO. etc.
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1.0.1 K Hoang 18/05/2021 Update README and Packages' Patches to match core arduino-pico core v1.4.0
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1.1.0 K Hoang 10/00/2021 Add support to new boards using the arduino-pico core
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1.1.1 K Hoang 22/10/2021 Fix platform in library.json for PIO
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1.2.0 K.Hoang 21/01/2022 Fix `multiple-definitions` linker error.
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*****************************************************************************************************************************/
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#pragma once
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#ifndef ISR_TIMER_GENERIC_H
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#define ISR_TIMER_GENERIC_H
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#include "RPi_Pico_ISR_Timer.hpp"
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#include "RPi_Pico_ISR_Timer-Impl.h"
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#endif // ISR_TIMER_GENERIC_H
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