jim hamblen
Simple demo for a ShiftBrite RGB LED module that cycles through different colors.
Revision 0:fc7fc9c0cd67, committed 2011-04-22
- Comitter:
- 4180_1
- Date:
- Fri Apr 22 14:31:29 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 |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Apr 22 14:31:29 2011 +0000
@@ -0,0 +1,39 @@
+#include "mbed.h"
+//ShiftBrite Demo
+DigitalOut latch(p15);
+DigitalOut enable(p16);
+//Cycles through different colors on RGB LED
+SPI spi(p11, p12, p13);
+//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;
+}
+
+int main() {
+ int red=0;
+ int green=0;
+ int blue=0;
+ spi.format(16,0);
+ spi.frequency(500000);
+ enable=0;
+ latch=0;
+ wait(2);
+ for (red = 0; red<50; red = red+10) {
+ for (blue = 0; blue<50; blue = blue+10) {
+ for (green = 0; green<50; green = green+10)
+
+ {
+ RGB_LED( red, green, blue);
+ wait(.25);
+ }
+ }
+ }
+
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Apr 22 14:31:29 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912