Blue Bridge Cup_ Single chip microcomputer_ PWM output

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Catalog

PWM Output

Conclusion of the examination

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PWM Output

Conclusion of the examination

• PWM The pattern is Through ordinary pins and timers The cooperation between the two is realized
• First Determine the timer according to the frequency The timing size that should be selected , For example 1khz, With the duty cycle ,1ms Your timer won't work . need 0.1ms（ namely 100us） Can only be .
• adopt A number , from 0-9 change , The comparison value of the duty cycle is smaller than this value （ Not less than or equal to ） Words , Output a high level , Bigger than it , Output a low level .