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Programme qui génère du pwm
Fork of Nucleo_sg90_remote_control by
main.cpp@0:52104be74a8a, 2017-03-24 (annotated)
- Committer:
- YROY2004
- Date:
- Fri Mar 24 17:34:09 2017 +0000
- Revision:
- 0:52104be74a8a
- Child:
- 1:39c0d160f44c
version that works on both the f302r8 and the f401re
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
YROY2004 | 0:52104be74a8a | 1 | #include "mbed.h" |
YROY2004 | 0:52104be74a8a | 2 | #define NUMBER_OF_POSITIONS sizeof(pulseDurationInMicroSeconds)/sizeof(int) |
YROY2004 | 0:52104be74a8a | 3 | #define PWM_PERIOD_FOR_SG90_IN_MS 20 |
YROY2004 | 0:52104be74a8a | 4 | #define PWM_PERIOD_FOR_MODULATION_IN_US 25 |
YROY2004 | 0:52104be74a8a | 5 | DigitalOut myled(LED1); |
YROY2004 | 0:52104be74a8a | 6 | PwmOut towerProSG90(D11); |
YROY2004 | 0:52104be74a8a | 7 | //PwmOut remoteControlOutput(D10); |
YROY2004 | 0:52104be74a8a | 8 | //PwmOut modulatingOutput(D9); |
YROY2004 | 0:52104be74a8a | 9 | InterruptIn userButton(USER_BUTTON); |
YROY2004 | 0:52104be74a8a | 10 | int index; |
YROY2004 | 0:52104be74a8a | 11 | int pulseDurationInMicroSeconds[]= |
YROY2004 | 0:52104be74a8a | 12 | {1500,1625,1750,1875,2000, 1875,1750,1625,1500,1375,1250,1125,1000,1125,1250,1375}; |
YROY2004 | 0:52104be74a8a | 13 | void responseToUserButtonPressed(void) |
YROY2004 | 0:52104be74a8a | 14 | { |
YROY2004 | 0:52104be74a8a | 15 | index++; |
YROY2004 | 0:52104be74a8a | 16 | if (index >= NUMBER_OF_POSITIONS) |
YROY2004 | 0:52104be74a8a | 17 | { |
YROY2004 | 0:52104be74a8a | 18 | index = 0; |
YROY2004 | 0:52104be74a8a | 19 | } |
YROY2004 | 0:52104be74a8a | 20 | towerProSG90.pulsewidth_us(pulseDurationInMicroSeconds[index]); |
YROY2004 | 0:52104be74a8a | 21 | // remoteControlOutput.pulsewidth_us(PWM_PERIOD_FOR_SG90_IN_MS*1000 - pulseDurationInMicroSeconds[index]); |
YROY2004 | 0:52104be74a8a | 22 | } |
YROY2004 | 0:52104be74a8a | 23 | |
YROY2004 | 0:52104be74a8a | 24 | int main() { |
YROY2004 | 0:52104be74a8a | 25 | index = 0; |
YROY2004 | 0:52104be74a8a | 26 | towerProSG90.period_ms(PWM_PERIOD_FOR_SG90_IN_MS); |
YROY2004 | 0:52104be74a8a | 27 | towerProSG90.pulsewidth_us(pulseDurationInMicroSeconds[index]); |
YROY2004 | 0:52104be74a8a | 28 | // remoteControlOutput.period_ms(PWM_PERIOD_FOR_SG90_IN_MS); |
YROY2004 | 0:52104be74a8a | 29 | // remoteControlOutput.pulsewidth_us(PWM_PERIOD_FOR_SG90_IN_MS*1000 - pulseDurationInMicroSeconds[index]); |
YROY2004 | 0:52104be74a8a | 30 | // modulatingOutput.period_us(PWM_PERIOD_FOR_MODULATION_IN_US); |
YROY2004 | 0:52104be74a8a | 31 | // modulatingOutput.pulsewidth_us(PWM_PERIOD_FOR_MODULATION_IN_US/2); |
YROY2004 | 0:52104be74a8a | 32 | userButton.fall(&responseToUserButtonPressed); |
YROY2004 | 0:52104be74a8a | 33 | // userLED = 1; |
YROY2004 | 0:52104be74a8a | 34 | while(1) { |
YROY2004 | 0:52104be74a8a | 35 | myled = 1; // LED is ON |
YROY2004 | 0:52104be74a8a | 36 | wait(0.2); // 200 ms |
YROY2004 | 0:52104be74a8a | 37 | myled = 0; // LED is OFF |
YROY2004 | 0:52104be74a8a | 38 | wait(1.0); // 1 sec |
YROY2004 | 0:52104be74a8a | 39 | } |
YROY2004 | 0:52104be74a8a | 40 | } |