comparison projects/basic_blink/render.cpp @ 75:8bd351ca8b46

Fixed direction in setPinMode functions, updated and fixed basic_blink

-    /*
- *
- * Andrew McPherson and Victor Zappi
- * Queen Mary, University of London
- */
-
 #include <BeagleRT.h>
 #include <Utilities.h>
 #include <cmath>
 #include <rtdk.h>
 

 // render() is called regularly at the highest priority by the audio engine.
 // Input and output are given from the audio hardware and the other
 // ADCs and DACs (if available). If only audio is available, numAnalogFrames
 // will be 0.
 
+/* basic_blink
+* Connect an LED in series with a 470ohm resistor between P8_07 and ground.
+* The LED will blink every @interval seconds.
+*/
+
 void render(BeagleRTContext *context, void *userData)
 {
-  //connect an LED in series with a 470ohm resistor between P8_07 and ground
   static int count=0; //counts elapsed samples
   float interval=0.5; //how often to toggle the LED (in seconds)
   static int status=GPIO_LOW;
 	for(unsigned int n=0; n<context->digitalFrames; n++){
     if(count==context->digitalSampleRate*interval){ //if enough samples have elapsed

     // status=digitalReadFrame(context, 0, P8_07);
       if(status==GPIO_LOW) //toggle the status
         status=GPIO_HIGH;
       else
         status=GPIO_LOW;
-      pinModeFrame(context, 0, P8_07, OUTPUT);
-      digitalWriteFrame(context, n, P8_07, status); //write the status to the LED
-    // rt_printf("there %d\n", context->digital[n]);
+      pinModeFrame(context, n, P8_07, OUTPUT);
+      digitalWriteFrameOnce(context, n, P8_07, status); //write the status to the LED
     }
-    context->digital[n]=status*0x00010000;
     count++;
   }
 }
 
 // cleanup() is called once at the end, after the audio has stopped.