PwmOut_HelloWorld Example for WIZwiki-W7500
Dependencies: mbed-src
Fork of PwmOut_HelloWorld by
Prerequisite
This example is for PWM test using digital I/O. To implement this function, you need a Platform board.
Below are what we used.
- WIZwiki-W7500 from WIZnet (Platform board)
Hardware Configuration
WIZwiki-W7500 Pin map
Software
Init GPIO
PwmOut led(LED1);
Set PWM
led.period(4.0f); // 4 second period led.write(0.50f); // 50% duty cycle, relative to period
main.cpp@1:5160ea45399b, 2014-09-21 (annotated)
- Committer:
- mbedAustin
- Date:
- Sun Sep 21 06:39:30 2014 +0000
- Revision:
- 1:5160ea45399b
- Parent:
- 0:50d2b9c62765
updated example for clarity
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 0:50d2b9c62765 | 1 | #include "mbed.h" |
mbedAustin | 1:5160ea45399b | 2 | |
mbed_official | 0:50d2b9c62765 | 3 | PwmOut led(LED1); |
mbedAustin | 1:5160ea45399b | 4 | |
mbed_official | 0:50d2b9c62765 | 5 | int main() { |
mbedAustin | 1:5160ea45399b | 6 | // specify period first |
mbedAustin | 1:5160ea45399b | 7 | led.period(4.0f); // 4 second period |
mbedAustin | 1:5160ea45399b | 8 | led.write(0.50f); // 50% duty cycle, relative to period |
mbedAustin | 1:5160ea45399b | 9 | //led = 0.5f; // shorthand for led.write() |
mbedAustin | 1:5160ea45399b | 10 | //led.pulsewidth(2); // alternative to led.write, set duty cycle time in seconds |
mbedAustin | 1:5160ea45399b | 11 | while(1); |
mbed_official | 0:50d2b9c62765 | 12 | } |