[ts-7000] Generate a PWM wave

["jvonrudnocruz" <>]

Hello everybody,

It is my first time that i write in our group,

My problem is the next:

I am using a TS7260 and I am trying to geneate a square wave with diferent 
frequencies and I need that every period is 1 second and the time of the every 
peak should be 10 ms.

When i read the documentation, I have found the next method to generate a 
square wave with the next parameter:

int startPWM(xdio *x, int freq, int microDutyCicle)

my problem is that I can not reach the way to make time of every peak of 10 ms.

I was develop the next code to do this:

struct xdio xdio1,xdio2,*xd1=0,*xd2=0;
JNIEXPORT jboolean JNICALL Java_wave_GenerateWave_wave(JNIEnv *env, jobject 
obj, jintArray frequencies)
{
        //Initialize variables and take a copy of the array of frequencies.
        jsize i;
        jsize sizeVector = (*env)->GetArrayLength(env, frequencies);
        jint* frequency;

        frequency = (*env)->GetIntArrayElements(env, frequencies, NULL);

        //Open the xdio1 and xdio2
        if (open_xdio(&xdio1,0))
        {
                xd1 = &xdio1;
        }
        if (open_xdio(&xdio2,1))
        {
                xd2 = &xdio2;
        }

        //Set pin 4 as output direction.
        setPinDirection(xd1,4,OUTPUT);
        setPin(xd1, 4, LOW);

        int ret = 0;
        //Execute the method in xdio.c to obtain a pwm.
        for (i=0; i<sizeVector; i++)
        {
                initCounter(xd1,EDGE_COUNTER,NO_RESET);
                setClockSpeed(xd1,1);

                ret = startPWM(xd1,frequency[i],990000);

                if(ret == 0)
                {
                        return ret;
                }

                printf("Frequency[%d] = %d\n", i, frequency[i]);

                printf("return value of the method: %d\n ", ret);
                pausePWM(xd1);

                usleep(970000);
        }

        resumePWM(xd1);

        //release the copy of the array
        (*env)->ReleaseIntArrayElements(env, frequencies, frequency, 0);

        //Close the xdio
        close_xdio(xd1);
        close_xdio(xd2);
        return 1;
}

I hope I someone can give a hand.

Regards.

Jorge von Rudno. 



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