<![CDATA[Tool to access hardware PWM]]>Just created tool to access hawdware PWM on Omega2: https://github.com/ClusterM/omega2-pwm

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 <channel> <frequency> [duty]

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

pwm 1 3000 50
]]>http://community.onion.io/topic/2229/tool-to-access-hardware-pwmRSS for NodeSun, 10 May 2026 11:04:48 GMTFri, 21 Jul 2017 23:08:55 GMT60<![CDATA[Reply to Tool to access hardware PWM on Fri, 21 Jul 2017 23:11:57 GMT]]>Just created tool to access hawdware PWM on Omega2: https://github.com/ClusterM/omega2-pwm

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 <channel> <frequency> [duty]

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

pwm 1 3000 50
]]>http://community.onion.io/post/13842http://community.onion.io/post/13842Fri, 21 Jul 2017 23:11:57 GMT