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modified on 17 September 2014 at 18:06 ••• 28,862 views

04-02 SawtoothWave

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The following image shows the circuit in action.
[[Image:BAM210_04_02.png|center|]]
[[Image:BAM210_04_02.png|center|]]

Revision as of 16:00, 17 September 2014

This example outputs a saw tooth wave form on the DAC output. The DAC output is on pin A5 of J8.

/*Program Example 4.2: Sawtooth waveform on DAC output. View on oscilloscope
                                                                              */
#include "mbed.h"
AnalogOut Aout(DAC0);
float i;

int main()
{
    while(1) {
        for (i=0; i<1; i=i+0.1) {    // i is incremented in steps of 0.1
            Aout=i;
            wait(0.001);               // wait 1 millisecond
        }
    }
}

The following image shows the circuit in action.