fast digital write

<p>Hello,</p>
<p> </p>
<p>For a certain experiment I need to do, I need to generate some pulses, as fast as possible.</p>
<p> </p>
<p>For beginning I need a square wave, basically, so I wrote the following code: (which does not work, according to my scope)</p>
<p> </p>
<div>#include <Energia.h></div>
<div>#include "inc/lm4f120h5qr.h"</div>
<div>#include "driverlib/gpio.h"</div>
<div> </div>
<div>void setup() {</div>
<div>  GPIOPadConfigSet(GPIO_PORTA_BASE, 0xff, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD);  </div>
<div>  GPIODirModeSet(GPIO_PORTA_BASE, 0xff, GPIO_DIR_MODE_OUT);</div>
<div>}</div>
<div> </div>
<div>void loop()</div>
<div>{</div>
<div>  GPIOPinWrite(GPIO_PORTA_BASE, GPIO_PIN_6, LOW);</div>
<div>  GPIOPinWrite(GPIO_PORTA_BASE, GPIO_PIN_6, HIGH);  </div>
<div>}</div>
<div> </div>
<div>Basically I want to turn on and off gpio_pin_6 as fast as possible?</div>
<div> </div>
<div>Any ideas/recomendations/help greatly appreciated,</div>
<div> </div>
<div>Best regards,</div>
<div>C.A.</div>
<p> </p>
<p> </p>

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