Kristopher Bahar
Mbed Program for Gatech 4180 Shiftbrite LED Rotation Display
Revision 0:0499f4bb7fa5, committed 2011-12-14
- Comitter:
- kbahar3
- Date:
- Wed Dec 14 22:11:49 2011 +0000
- Commit message:
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r 0499f4bb7fa5 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Dec 14 22:11:49 2011 +0000
@@ -0,0 +1,339 @@
+/* ----- 4180 Final Design Project -----
+ Bicycle Wheel LED Image Display
+*/
+#include "mbed.h"
+
+InterruptIn hall(p28); // This interupt is used to poll the Hall Effect IC
+DigitalOut latch(p8);
+DigitalOut enable(p9);
+Timer timer; // This timer is used to time the wheel's rotation
+
+int LEDRowNumber = 10; // This is equal to the number of divisions the user has setup for his or her image
+int cycle_time = 0; // Global Variable for the full rotation
+int rowIndex = 0; // Index for shifting through the Image array
+bool top_wheel = false; // Variable Debug LED Circuit
+int color = 0; // Variable for shifting through colors
+int j; // For Loop index for LED debug circuit
+float adj_cycle_time = 0; // Variable used to hold "cycle_time / LEDRowNumber"
+
+//Cycles through different colors on RGB LED
+SPI spi(p5, p6, p7);
+
+//Use SPI hardware to write color values to LED driver chip
+void RGB_LED(int red, int green, int blue) {
+ unsigned int low_color=0;
+ unsigned int high_color=0;
+ high_color=(blue<<4)|((red&0x3C0)>>6);
+ low_color=(((red&0x3F)<<10)|(green));
+ spi.write(high_color);
+ spi.write(low_color);
+ latch=1;
+ latch=0;
+}
+
+//Interupt Routine used to detect when the magnet passes the Hall Effect Sensor
+void intRoutine() {
+ cycle_time = timer.read_ms(); //This is only called then the Hall Effect IC returns a "0"
+ adj_cycle_time = cycle_time / LEDRowNumber; //Calculates the time between sending each LED Row within the color Arrays
+ timer.reset(); //Resets the Timer
+ rowIndex = 0; //Resets the Row to be sent so the image always stays in the relatively same place
+ color=0; //Resets the color Index for the LED sample wheel so the image always stays in the same place
+}
+
+int main() {
+ hall.mode(PullUp); //Initializes the PullUp Resistor for the Hall Effect Sensor
+ hall.fall(&intRoutine); //Initializes the Interrupt Routine for the Hall Effect Sensor (on falling edge)
+
+ spi.format(16,0); //Initializes the Shiftbright LED Chain
+ spi.frequency(500000);
+ enable=0;
+ latch=0;
+ wait(2);
+
+ timer.start(); //Starts the Timer
+
+/*//----- Color Initialization for Debug Program -----
+ int red=0;
+ int green=0;
+ int blue=0;
+ */
+
+/* //----- Spiral Pattern -----
+ int red[10][10]={50,0,0,0,0,0,0,0,0,0
+ ,0,50,0,0,0,0,0,0,0,0
+ ,0,0,50,0,0,0,0,0,0,0
+ ,0,0,0,50,0,0,0,0,0,0
+ ,0,0,0,0,50,0,0,0,0,0
+ ,0,0,0,0,0,50,0,0,0,0
+ ,0,0,0,0,0,0,50,0,0,0
+ ,0,0,0,0,0,0,0,50,0,0
+ ,0,0,0,0,0,0,0,0,50,0
+ ,0,0,0,0,0,0,0,0,0,50};
+ int green[10][10]={50,0,0,0,0,0,0,0,0,0
+ ,0,50,0,0,0,0,0,0,0,0
+ ,0,0,50,0,0,0,0,0,0,0
+ ,0,0,0,50,0,0,0,0,0,0
+ ,0,0,0,0,50,0,0,0,0,0
+ ,0,0,0,0,0,50,0,0,0,0
+ ,0,0,0,0,0,0,50,0,0,0
+ ,0,0,0,0,0,0,0,50,0,0
+ ,0,0,0,0,0,0,0,0,50,0
+ ,0,0,0,0,0,0,0,0,0,50};
+ int blue[10][10]={50,0,0,0,0,0,0,0,0,0
+ ,0,50,0,0,0,0,0,0,0,0
+ ,0,0,50,0,0,0,0,0,0,0
+ ,0,0,0,50,0,0,0,0,0,0
+ ,0,0,0,0,50,0,0,0,0,0
+ ,0,0,0,0,0,50,0,0,0,0
+ ,0,0,0,0,0,0,50,0,0,0
+ ,0,0,0,0,0,0,0,50,0,0
+ ,0,0,0,0,0,0,0,0,50,0
+ ,0,0,0,0,0,0,0,0,0,50};
+*/
+
+//----- Pac Man -----
+
+ int red[10][10]={50,50,50,50,50,50,50,50,50,50
+ ,50,50,50,50,50,50,50,50,50,50
+ ,50,50,50,50,50,50,50,50,50,50
+ ,50,50,50,50,50,50,50,50,50,50
+ ,50,50,50,50,50,50,0,0,50,50
+ ,50,50,50,50,50,50,50,50,50,50
+ ,0,0,0,0,0,0,0,0,0,0
+ ,0,0,0,0,0,0,0,0,0,0
+ ,50,50,50,50,50,50,50,50,50,50
+ ,50,50,50,50,50,50,50,50,50,50};
+
+ int green[10][10]={50,50,50,50,50,50,50,50,50,50
+ ,50,50,50,50,50,50,50,50,50,50
+ ,50,50,50,50,50,50,50,50,50,50
+ ,50,50,50,50,50,50,50,50,50,50
+ ,50,50,50,50,50,50,0,0,50,50
+ ,50,50,50,50,50,50,50,50,50,50
+ ,0,0,0,0,0,0,0,0,0,0
+ ,0,0,0,0,0,0,0,0,0,0
+ ,50,50,50,50,50,50,50,50,50,50
+ ,50,50,50,50,50,50,50,50,50,50};
+
+ int blue[10][10]={0,0,0,0,0,0,0,0,0,0
+ ,0,0,0,0,0,0,0,0,0,0
+ ,0,0,0,0,0,0,0,0,0,0
+ ,0,0,0,0,0,0,0,0,0,0
+ ,0,0,0,0,0,0,0,0,0,0
+ ,0,0,0,0,0,0,0,0,0,0
+ ,0,0,0,0,0,0,0,0,0,0
+ ,0,0,0,0,0,0,0,0,0,0
+ ,0,0,0,0,0,0,0,0,0,0
+ ,0,0,0,0,0,0,0,0,0,0};
+
+
+/*// -----Blue Triangle: From Bitmap Image Program -----
+ int red[36][10]={0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,42,42,42,42,42,
+ 0,0,0,0,0,42,42,42,42,42,
+ 0,0,0,0,0,0,0,42,42,42,
+ 0,0,0,0,0,0,0,0,0,42,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,42,
+ 0,0,0,0,0,0,0,0,0,42,
+ 0,0,0,0,0,0,0,0,42,42,
+ 0,0,0,0,0,0,0,0,42,42,
+ 0,0,0,0,0,0,0,0,42,42,
+ 0,0,0,0,0,0,0,0,0,42,
+ 0,0,0,0,0,0,0,0,0,42,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,42,
+ 0,0,0,0,0,0,0,42,42,42,
+ 0,0,0,0,0,42,42,42,42,42,
+ 0,0,0,0,0,42,42,42,42,42,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0};
+
+int green[36][10]={0,0,0,0,42,42,42,42,42,42,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,42,42,42,42,42,42,
+ 0,0,0,0,42,42,42,42,42,42,
+ 0,0,0,0,42,42,42,42,42,42,
+ 0,0,0,0,42,42,42,42,42,42,
+ 0,0,0,0,42,42,42,42,42,42,
+ 0,0,0,0,42,42,42,42,42,42,
+ 0,0,0,0,42,42,42,42,42,42,
+ 0,0,0,0,0,42,42,42,42,42,
+ 0,0,0,0,0,0,0,42,42,42,
+ 0,0,0,0,0,0,0,0,42,42,
+ 0,0,0,0,0,0,0,42,42,42,
+ 0,0,0,0,0,42,42,42,42,42,
+ 0,0,0,0,0,42,42,42,42,42,
+ 0,0,0,0,42,42,42,42,42,42,
+ 0,0,0,0,42,42,42,42,42,42,
+ 0,0,0,0,42,42,42,42,42,42,
+ 0,0,0,0,42,42,42,42,42,42,
+ 0,0,0,0,42,42,42,42,42,42};
+
+ int blue[36][10]={42,42,42,42,0,0,0,0,0,0,
+ 42,42,42,42,42,0,0,0,0,0,
+ 42,42,42,42,42,0,0,0,0,0,
+ 42,42,42,42,42,42,42,0,0,0,
+ 42,42,42,42,42,42,42,42,42,0,
+ 42,42,42,42,42,42,42,42,42,42,
+ 42,42,42,42,42,42,42,42,42,0,
+ 42,42,42,42,42,42,42,42,42,0,
+ 42,42,42,42,42,42,42,42,0,0,
+ 42,42,42,42,42,42,42,42,0,0,
+ 42,42,42,42,42,42,42,42,0,0,
+ 42,42,42,42,42,42,42,42,42,0,
+ 42,42,42,42,42,42,42,42,42,0,
+ 42,42,42,42,42,42,42,42,42,42,
+ 42,42,42,42,42,42,42,42,42,0,
+ 42,42,42,42,42,42,42,0,0,0,
+ 42,42,42,42,42,0,0,0,0,0,
+ 42,42,42,42,42,0,0,0,0,0,
+ 42,42,42,42,0,0,0,0,0,0,
+ 42,42,42,42,0,0,0,0,0,0,
+ 42,42,42,42,0,0,0,0,0,0,
+ 42,42,42,42,0,0,0,0,0,0,
+ 42,42,42,42,0,0,0,0,0,0,
+ 42,42,42,42,0,0,0,0,0,0,
+ 42,42,42,42,0,0,0,0,0,0,
+ 42,42,42,42,42,0,0,0,0,0,
+ 42,42,42,42,42,42,42,0,0,0,
+ 42,42,42,42,42,42,42,42,0,0,
+ 42,42,42,42,42,42,42,0,0,0,
+ 42,42,42,42,42,0,0,0,0,0,
+ 42,42,42,42,42,0,0,0,0,0,
+ 42,42,42,42,0,0,0,0,0,0,
+ 42,42,42,42,0,0,0,0,0,0,
+ 42,42,42,42,0,0,0,0,0,0,
+ 42,42,42,42,0,0,0,0,0,0,
+ 42,42,42,42,0,0,0,0,0,0};
+*/
+ while(1) {
+ //led1 = hall; // Used for Debugging the Hall Effect IC
+ //led2 = !hall; // Used for Debugging the Hall Effect IC
+
+ //----- Code for Cycling through a 2D Picture Array -----
+ wait_ms(adj_cycle_time);
+ for(int i=9;i>=0;i--){ //If we update without any waiting, the LEDs change colors super fast, and you won't notice the shifting LEDs
+ RGB_LED( red[rowIndex][i], green[rowIndex][i], blue[rowIndex][i]);
+ }
+ rowIndex++;
+ if(rowIndex>=LEDRowNumber){
+ rowIndex = 0;
+ }
+
+
+ /* //----- Debug Code: Rainbow Pattern ------ (Pre 2D Color Array)
+ wait_ms(adj_cycle_time);
+ top_wheel = true;
+ if (top_wheel && (color == 0)) {
+ // Red, Color 0
+ //printf("RED RED RED\r\n");
+ red = 50;
+ blue = 0;
+ green = 0;
+ for(j = 0; j < 10; j++)
+ RGB_LED(red, green, blue);
+ top_wheel = false;
+ color++;
+ }
+ if (top_wheel && (color == 1)) {
+ //printf("ORANGE ORANGE ORANGE\r\n");
+ // Orange, Color 1
+ red = 50;
+ blue = 0;
+ green = 25;
+ for(j = 0; j < 10; j++)
+ RGB_LED(red, green, blue);
+ top_wheel = false;
+ color++;
+ }
+ if (top_wheel && (color == 2)) {
+ //printf("YELLOW YELLOW YELLOW\r\n");
+ // Yellow, Color 2
+ red = 50;
+ blue = 0;
+ green = 50;
+ for(j = 0; j < 10; j++)
+ RGB_LED(red, green, blue);
+ top_wheel = false;
+ color++;
+ }
+ if (top_wheel && (color == 3)) {
+ //printf("GREEN GREEN GREEN\r\n");
+ // Green, Color 3
+ red = 0;
+ blue = 0;
+ green = 50;
+ for(j = 0; j < 10; j++)
+ RGB_LED(red, green, blue);
+ top_wheel = false;
+ color++;
+ }
+ if (top_wheel && (color == 4)) {
+ //printf("CYAN CYAN CYAN\r\n");
+ // Cyan, Color 4
+ red = 0;
+ blue = 50;
+ green = 50;
+ for(j = 0; j < 10; j++)
+ RGB_LED(red, green, blue);
+ top_wheel = false;
+ color++;
+ }
+ if (top_wheel && (color == 5)) {
+ //printf("BLUE BLUE BLUE\r\n");
+ // Blue, Color 5
+ red = 0;
+ blue = 50;
+ green = 0;
+ for(j = 0; j < 10; j++)
+ RGB_LED(red, green, blue);
+ top_wheel = false;
+ color++;
+ }
+ if (top_wheel && (color == 6)) {
+ //printf("PURPLE PURPLE PURPLE\r\n");
+ //Purple, Color 6
+ red = 50;
+ blue = 50;
+ green = 0;
+ for(j = 0; j < 10; j++)
+ RGB_LED(red, green, blue);
+ top_wheel = false;
+ color = 0;
+ }
+ */
+ }
+}
\ No newline at end of file
diff -r 000000000000 -r 0499f4bb7fa5 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Dec 14 22:11:49 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/078e4b97a13e