yajuan yue
/
ele350
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Fork of
ele350
by 
JIAWEI ZHANG
soft_pwm.cpp@7:04e1552c7c95, 2016-10-18 (annotated)
- Committer:
- yyue
- Date:
- Tue Oct 18 17:28:08 2016 +0000
- Revision:
- 7:04e1552c7c95
- Parent:
- 5:e820e1348f98
created
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| GGHHHH | 3:1ad50b4e51a6 | 1 | #include "soft_pwm.h" |
| GGHHHH | 3:1ad50b4e51a6 | 2 | |
| GGHHHH | 3:1ad50b4e51a6 | 3 | |
| GGHHHH | 3:1ad50b4e51a6 | 4 | float SoftPwm::getPeriod() |
| GGHHHH | 3:1ad50b4e51a6 | 5 | { |
| GGHHHH | 3:1ad50b4e51a6 | 6 | return this->period; |
| GGHHHH | 3:1ad50b4e51a6 | 7 | } |
| GGHHHH | 3:1ad50b4e51a6 | 8 | |
| GGHHHH | 3:1ad50b4e51a6 | 9 | float SoftPwm::getDutyCycle() |
| GGHHHH | 3:1ad50b4e51a6 | 10 | { |
| GGHHHH | 3:1ad50b4e51a6 | 11 | return this->dutyCycle; |
| GGHHHH | 3:1ad50b4e51a6 | 12 | } |
| GGHHHH | 3:1ad50b4e51a6 | 13 | |
| GGHHHH | 3:1ad50b4e51a6 | 14 | void SoftPwm::setPeriod(float newPeriod) |
| GGHHHH | 3:1ad50b4e51a6 | 15 | { |
| GGHHHH | 3:1ad50b4e51a6 | 16 | this->period = newPeriod; |
| GGHHHH | 3:1ad50b4e51a6 | 17 | } |
| GGHHHH | 3:1ad50b4e51a6 | 18 | |
| GGHHHH | 3:1ad50b4e51a6 | 19 | void SoftPwm::setDutyCycle(float newDutyCycle) |
| GGHHHH | 3:1ad50b4e51a6 | 20 | { |
| GGHHHH | 3:1ad50b4e51a6 | 21 | this->dutyCycle = newDutyCycle; |
| GGHHHH | 3:1ad50b4e51a6 | 22 | } |
| GGHHHH | 3:1ad50b4e51a6 | 23 | SoftPwm::SoftPwm(float initialPeriod, float initialDutyCycle) |
| GGHHHH | 3:1ad50b4e51a6 | 24 | { |
| GGHHHH | 3:1ad50b4e51a6 | 25 | |
| GGHHHH | 3:1ad50b4e51a6 | 26 | this->period = initialPeriod; |
| GGHHHH | 3:1ad50b4e51a6 | 27 | this->dutyCycle = initialDutyCycle; |
| GGHHHH | 3:1ad50b4e51a6 | 28 | |
| GGHHHH | 5:e820e1348f98 | 29 | |
| GGHHHH | 3:1ad50b4e51a6 | 30 | this->timer.start(); |
| GGHHHH | 5:e820e1348f98 | 31 | } |
| GGHHHH | 3:1ad50b4e51a6 | 32 | bool SoftPwm::isOn() |
| GGHHHH | 5:e820e1348f98 | 33 | { |
| GGHHHH | 3:1ad50b4e51a6 | 34 | float onPhaseDuration = this->dutyCycle * this->period; |
| GGHHHH | 5:e820e1348f98 | 35 | float currentTime = this->timer.read(); |
| yyue | 7:04e1552c7c95 | 36 | if (currentTime > onPhaseDuration){ |
| yyue | 7:04e1552c7c95 | 37 | this->timer.start(); |
| yyue | 7:04e1552c7c95 | 38 | } |
| GGHHHH | 3:1ad50b4e51a6 | 39 | if (currentTime < onPhaseDuration){ |
| GGHHHH | 3:1ad50b4e51a6 | 40 | return true; |
| GGHHHH | 3:1ad50b4e51a6 | 41 | }else { |
| GGHHHH | 3:1ad50b4e51a6 | 42 | return false; |
| GGHHHH | 3:1ad50b4e51a6 | 43 | } |
| GGHHHH | 3:1ad50b4e51a6 | 44 | } |