View source

The PWMOutput example demonstrates PwmOut instruction for the MBED-SDK. The PWM output in this example can be observed on D2 (J9 pin 3).

The PWM signals for the MBED-SDK and the Bambino line of microcontrollers are mapped to the following connector locations:
{| border="1" cellpadding="5" cellspacing="2" align="center" style="text-align: center;"
|+ align="bottom"|'''PWM Ouput Connector Locations'''
|'''PWM Signal'''
|'''PIN NAME'''
|'''BAM210E'''
|'''BAM210'''
|'''BAM200E'''
|'''BAM200'''
|-
|PWM1
|P1_7
|J9-3
|J9-3
|S2-3
|S2-3
|- 
|PWM2
|P7_6
|J9-8
|J9-8
|S4-6
|S4-6
|- 
|PWM3
|P6_12
|J10-1
|J10-1
|S10-3
|n/p
|- 
|PWM4
|P4_6
|J10-3
|J10-3
|S2-6
|S2-6
|- 
|PWM5
|P7_5
|J8-2
|J8-2
|S4-4
|S4-4
|- 
|PWM6
|P4_1
|J8-3
|J8-3
|S3-4
|S3-4
|- 
|PWM7
|P7_7
|J8-4
|J8-4
|S4-5
|S4-5
|- 
|PWM8
|P2_8
|J12-4
|n/p
|S8-3
|n/p
|- 
|PWM9
|P2_9
|J12-6
|n/p
|S9-3
|n/p
|- 
|PWM10
|P7_1
|J13-5
|n/p
|S9-8
|n/p
|- 
|PWM11
|P7_0
|J13-6
|n/p
|S9-9
|n/p
|- 
|PWM12
|P1_5
|J14-7
|n/p
|S10-6
|n/p
|- 
|}

 /*Sets PWM source to fixed frequency and duty cycle. Observe output on oscilloscope.
                                                                   */
 #include "mbed.h"
 PwmOut pwm(PWM1);               //create a PWM output called pwm on pin PWM1
 
 int main()
 {
     pwm.period(0.010);                // set PWM period to 10 ms
     pwm=0.5;                         // set duty cycle to 50%
 }

PWM1 was captured on the oscilloscope in the image below.
[[Image:BAM210_04_04.png|center|]]