Ned Konz / Mbed 2 deprecated Multi_WS2811_test

Test program for my Multi_WS2811 library that started out as a fork of heroic/WS2811. My library uses hardware DMA on the FRDM-KL25Z to drive up to 16 strings of WS2811 or WS2812 LEDs in parallel.

Dependencies:   Multi_WS2811 mbed MMA8451Q

Fork of WS2811 by Heroic Robotics

NOTE: I have accidentally pushed changes for another fork of this program that I used in the recent Georgetown Carnival Power Tool Races. When I get some time, I will restore the test program to its original glory.

You can see my power tool racer (Nevermore's Revenge) here

/media/uploads/bikeNomad/img_0482.jpg

This tests my FRDM-KL25Z multi-string WS2811/WS2812 library. It uses the accelerometer to change the rainbow phase on two strings of LEDs as well as the touch sense to change brightness.

A video of this program in operation is here.

Here is the library that I developed to run the LEDs:

Import libraryMulti_WS2811

Library allowing up to 16 strings of 60 WS2811 or WS2812 LEDs to be driven from a single FRDM-KL25Z board. Uses hardware DMA to do a full 800 KHz rate without much CPU burden.

Last commit 13 Jun 2015 by Ned Konz

Diff: WS2811.h

Revision:
23:33df42ff2541
Parent:
22:abfed71656bd
Child:
30:52e9205a8059
--- a/WS2811.h	Thu Jan 02 02:31:24 2014 +0000
+++ b/WS2811.h	Thu Jan 02 10:30:25 2014 +0000
@@ -21,6 +21,8 @@
 
 #define MAX_LEDS_PER_STRIP 60
 
+extern "C" void DMA0_IRQHandler();
+
 class WS2811 : public LedStrip
 {
 public:
@@ -30,8 +32,10 @@
     virtual void show();
     virtual void blank();
 
+    static void startDMA();
+    static bool is_dma_done();
+
 private:
-    Timer guardtime;
     uint32_t pinMask;
 
     void writePixel(unsigned n, uint8_t *p);
@@ -40,11 +44,9 @@
 
     static bool initialized;
     static uint32_t enabledPins;
+    static Timer guardtime;
 
     static void writeByte(uint8_t byte, uint32_t mask, uint32_t *dest);
-    static void startDMA();
-
-    static bool is_dma_done();
 
     static void hw_init();
         static void io_init();
@@ -52,6 +54,8 @@
         static void dma_init();
         static void tpm_init();
         static void dma_data_init();
+        
+    friend void DMA0_IRQHandler();
 };
 
 #endif