Revision 1:93c7d040444d, committed 2015-01-19

Comitter:

clarkjarvis

Date:

Mon Jan 19 20:31:32 2015 +0000

Parent:

0:d9cf7fb66406

Commit message:

Updated comments

Changed in this revision

--- a/main.cpp	Fri Dec 19 16:38:26 2014 +0000
+++ b/main.cpp	Mon Jan 19 20:31:32 2015 +0000
@@ -1,6 +1,6 @@
 #include "mbed.h"
 
-DigitalOut gpo(D12);
+DigitalOut gpo(D12);  // Output pin for lights
 DigitalOut led_red(LED_RED);
 DigitalOut led_green(LED_GREEN);
 DigitalOut led_blue(LED_BLUE);
@@ -9,11 +9,12 @@
 #define NB 50 // Number of Bulbs
 #define LUM 0xFF // Brightness
 
-//RGB (array) (18)
+//Example RGB Color Array (18)
 unsigned int rval[AL] = {0xF,0xF,0xF,0xF,0xA,0x8,0x6,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x6,0x8,0xA};
 unsigned int gval[AL] = {0x0,0x0,0x0,0x0,0x6,0x8,0xA,0xF,0xF,0xF,0xA,0x8,0x6,0x0,0x0,0x0,0x0,0x0};
 unsigned int bval[AL] = {0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x6,0x8,0xA,0xF,0xF,0xA,0x8,0x6};
 
+// GPIO output to send a logical 0
 void s0()
 {
     gpo=0;
@@ -22,6 +23,7 @@
     wait_us(20);
 }
 
+// GPIO output to send a logical 1
 void s1()
 {
     gpo=0;
@@ -30,12 +32,14 @@
     wait_us(10);
 }
 
+// GPIO output to send an "End of Frame" marker
 void end_frame()
 {
     gpo=0;
     wait_us(30);
 }
 
+// Parse data value to serial process 0/1's
 void sdata(unsigned int data, int length)
 {
     unsigned int data_bit;
@@ -50,6 +54,7 @@
     }
 }
 
+// Send frame of data to control a single pixel
 void sframe(int channel, unsigned int lumm, unsigned int R, unsigned int G, unsigned int B)
 {
 // Send "1" value to start Frame
@@ -77,11 +82,12 @@
 
     wait_ms(1000);
 
-    // Init
+    // Initialize the light addresses (required after initially powering lights)
     for (int i=0; i<=NB; i++) {
         sframe(i,0,0,0,0);
     }
 
+    // Example light sequence
     while(1) {
         for (int i=0; i<AL; i++) {
             for (int j=0; j<NB; j++) {