7i92 pwm inverted

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13 Jun 2019 15:42 #136835 by pl7i92
7i92 pwm inverted was created by pl7i92
is there a pin to invert the pwm signal on the 7i92 with a China Bob configuration

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13 Jun 2019 16:39 #136837 by PCW
Replied by PCW on topic 7i92 pwm inverted
On Linuxcnc 2.7 and earlier you set the invert_output attribute of the GPIO pin
the PWM output uses:

setp hm2_7i92.0.gpio.XXX.invert_output true

on LinuxCNC 2.8 and later there is an alias that makes this easier:

setp hm2_7i92.0.pwmgen.00.out0.invert_output true

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14 Jun 2019 15:38 #136886 by pl7i92
Replied by pl7i92 on topic 7i92 pwm inverted
thank you dident find that in the documentation

2.9 master on System

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14 Jun 2019 20:14 #136905 by rodw
Replied by rodw on topic 7i92 pwm inverted

pl7i92 wrote: thank you dident find that in the documentation

2.9 master on System


Because its got nothing to do with Linuxcnc as it hardware specific

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18 Jun 2019 22:15 #137234 by andypugh
Replied by andypugh on topic 7i92 pwm inverted

rodw wrote: Because its got nothing to do with Linuxcnc as it hardware specific


It could go in this (badly formatted) manpage:
linuxcnc.org/docs/2.8/html/man/man9/hostmot2.9.html#pwmgen

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