https://github.com/clusterm/omega2-pwm

Simple program to control hardware PWM on Omega2
https://github.com/clusterm/omega2-pwm

Last synced: about 1 month ago
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Simple program to control hardware PWM on Omega2

• Host: GitHub
• URL: https://github.com/clusterm/omega2-pwm
• Owner: ClusterM
• License: gpl-3.0
• Created: 2017-07-21T21:48:21.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2024-02-20T18:56:56.000Z (over 1 year ago)
• Last Synced: 2025-04-16T02:06:11.162Z (about 1 month ago)
• Language: C
• Size: 17.6 KB
• Stars: 23
• Watchers: 2
• Forks: 8
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Omega2 PWM

This is simple program to control hardware PWM on Omega2. For some reason Omega2 has not any util to control **hardware** PWM. There is only **fast-gpio** tool, it uses software PWM which is awful for sound generation.

## Usage

Channel #0 is pin #18, channel #1 is pin #19. Channels #2 and #3 are available on Omega2S only (UART2 pins).

Before usage you must set GPIO muxing using **omega2-ctrl** tool:

    omega2-ctrl gpiomux set pwm0 pwm

    

or

    omega2-ctrl gpiomux set pwm1 pwm

Then use this tool:

    pwm   [duty]

Example to generate 3000Hz on channel #1 with 50% duty:

    pwm 1 3000 50