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en:general_information:tutorial:pwm [2015/10/27 16:07] – liedmann | en:general_information:tutorial:pwm [2022/08/04 15:02] (current) – external edit 127.0.0.1 | ||
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PWM devices are listed under **/ | PWM devices are listed under **/ | ||
- | ==== enable | + | ==== export |
+ | <WRAP round important 50%> | ||
+ | You must export the PWM at first, otherwise the other commands in this tutorial will not work | ||
+ | </ | ||
< | < | ||
root@MBaXXX: | root@MBaXXX: | ||
Line 18: | Line 20: | ||
root@MBaXXX:/ | root@MBaXXX:/ | ||
</ | </ | ||
+ | |||
++++ example | | ++++ example | | ||
< | < | ||
root@MBaXXX: | root@MBaXXX: | ||
- | root@MBaXXX:/ | + | root@MBaXXX:/ |
root@MBaXXX:/ | root@MBaXXX:/ | ||
root@MBaXXX:/ | root@MBaXXX:/ | ||
Line 27: | Line 30: | ||
++++ | ++++ | ||
+ | ==== set PWM period ==== | ||
+ | |||
+ | < | ||
+ | root@MBaXXX: | ||
+ | </ | ||
+ | |||
+ | ++++ example | | ||
+ | < | ||
+ | root@MBaXXX: | ||
+ | </ | ||
+ | ++++ | ||
+ | |||
+ | ==== set PWM duty cycle ==== | ||
+ | <WRAP round important 50%> | ||
+ | The value of duty cycle must be less than the value of pwm period | ||
+ | </ | ||
+ | |||
+ | < | ||
+ | root@MBaXXX: | ||
+ | </ | ||
+ | |||
+ | ++++ example | | ||
+ | |||
+ | < | ||
+ | root@MBaXXX: | ||
+ | </ | ||
+ | ++++ | ||
+ | |||
+ | ==== change polarity of the PWM signal ==== | ||
+ | |||
+ | < | ||
+ | root@MBaXXX: | ||
+ | root@MBaXXX: | ||
+ | </ | ||
+ | |||
+ | ++++ example | | ||
+ | < | ||
+ | root@MBaXXX: | ||
+ | root@MBaXXX: | ||
+ | </ | ||
+ | ++++ | ||
+ | ==== enable PWM ==== | ||
+ | |||
+ | < | ||
+ | root@MBaXXX: | ||
+ | </ | ||
+ | |||
+ | ++++ example | | ||
+ | |||
+ | < | ||
+ | root@MBaXXX: | ||
+ | </ | ||
+ | ++++ | ||
+ | |||
+ | ==== disable PWM ==== | ||
+ | |||
+ | < | ||
+ | root@MBaXXX: | ||
+ | </ | ||
+ | |||
+ | ++++ example | | ||
+ | |||
+ | < | ||
+ | root@MBaXXX: | ||
+ | </ | ||
+ | ++++ |