Pico_ada_c04_pwm
https://pi-ada-tutorial.sourceforge.io/pico_ada_c04_pwm
Author:- Martin Krischik <krischik@users.sourceforge.net>
- Martin Krischik <krischik@users.sourceforge.net>
GPL-3.0-or-later
Version:1.6.0
Alire CI:
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light_tasking_rp2040 ^15.3
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pico_bsp ^2.2
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pico_xbsp ^1.5
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rp2040_hal ^2.7.1
No dependents.
Badge:
Chapter 4: Analog LED with PWM
#raspberry #pi #pico #rp2040 #tasking #light-tasking #ada2022 #embeddedBuilding smooth breathing LEDs and flowing light bars with hardware PWM on the Raspberry Pi Pico using Ada. From jittery duty cycles to perfect linear dimming - guided by the Voltcraft MSO-5102B oscilloscope and a deep dive into PWM slice mapping on both Pico 1 and Pico 2.
In this chapter we create a reusable Pico.Analog package for PWM-based analogue output. We start with a classic breathing light, then move on to a flowing light bar. Along the way the MSO-5102B reveals the real behaviour of our code, and we discover (and fix) a subtle bug in the experimental RP2350 HAL.
Contained in Chapter 04 are:
- Pwm - Original PWM sample from Jeremy Grosser
- sketch_04_1_breathing_light - Chapter 4.1 Blink internal LED
- sketch_04_2_flowing_light_2 - Chapter 4.1 Project Meteor Flowing Light
Read the full tutorial at Chapter 4: Analog & PWM, GNATdoc documentation, SourceForge repository