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

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

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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