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

WS2811.h@21:4541da183397, 2014-01-02 (annotated)

Committer:
bikeNomad
Date:
Thu Jan 02 00:50:09 2014 +0000
Revision:
21:4541da183397
Parent:
20:b9d76e567637
Child:
22:abfed71656bd
Got parallel mode working!

Who changed what in which revision?

UserRevisionLine numberNew contents of line
heroic 8:e3249c2b7607 1 // Mbed library to control WS2801-based RGB LED Strips
heroic 8:e3249c2b7607 2 // some portions (c) 2011 Jelmer Tiete
heroic 8:e3249c2b7607 3 // This library is ported from the Arduino implementation of Adafruit Industries
heroic 8:e3249c2b7607 4 // found at: http://github.com/adafruit/LPD8806
heroic 8:e3249c2b7607 5 // and their strips: http://www.adafruit.com/products/306
heroic 8:e3249c2b7607 6 // Released under the MIT License: http://mbed.org/license/mit
heroic 8:e3249c2b7607 7 //
heroic 8:e3249c2b7607 8 /*****************************************************************************/
heroic 8:e3249c2b7607 9
heroic 8:e3249c2b7607 10 // Heavily modified by Jas Strong, 2012-10-04
heroic 8:e3249c2b7607 11 // Changed to use a virtual base class and to use software SPI.
bikeNomad 21:4541da183397 12 //
bikeNomad 21:4541da183397 13 // Modified by Ned Konz, December 2013.
bikeNomad 21:4541da183397 14 // Using three-phase DMA ala Paul Stoffegren's version.
heroic 8:e3249c2b7607 15
heroic 8:e3249c2b7607 16 #ifndef MBED_WS2811_H
heroic 8:e3249c2b7607 17 #define MBED_WS2811_H
heroic 8:e3249c2b7607 18
bikeNomad 21:4541da183397 19 #include "mbed.h"
bikeNomad 21:4541da183397 20 #include "LedStrip.h"
bikeNomad 21:4541da183397 21
bikeNomad 21:4541da183397 22 #define MAX_LEDS_PER_STRIP 40
heroic 8:e3249c2b7607 23
bikeNomad 17:b4e9d8f4baa9 24 class WS2811 : public LedStrip
bikeNomad 17:b4e9d8f4baa9 25 {
bikeNomad 17:b4e9d8f4baa9 26 public:
bikeNomad 21:4541da183397 27 WS2811(unsigned n, unsigned pinNumber);
bikeNomad 21:4541da183397 28
bikeNomad 21:4541da183397 29 virtual void begin();
bikeNomad 21:4541da183397 30 virtual void show();
bikeNomad 21:4541da183397 31 virtual void blank();
heroic 8:e3249c2b7607 32
bikeNomad 17:b4e9d8f4baa9 33 private:
bikeNomad 21:4541da183397 34 Timer guardtime;
bikeNomad 21:4541da183397 35 uint32_t pinMask;
bikeNomad 21:4541da183397 36
bikeNomad 21:4541da183397 37 void writePixel(unsigned n, uint8_t *p);
bikeNomad 17:b4e9d8f4baa9 38
bikeNomad 21:4541da183397 39 // Class Static:
bikeNomad 21:4541da183397 40
bikeNomad 21:4541da183397 41 static bool initialized;
bikeNomad 21:4541da183397 42 static uint32_t enabledPins;
bikeNomad 21:4541da183397 43
bikeNomad 21:4541da183397 44 static void writeByte(uint8_t byte, uint32_t mask, uint32_t *dest);
bikeNomad 21:4541da183397 45 static void startDMA();
bikeNomad 17:b4e9d8f4baa9 46
bikeNomad 21:4541da183397 47 static bool is_dma_done();
bikeNomad 21:4541da183397 48
bikeNomad 21:4541da183397 49 static void hw_init();
bikeNomad 21:4541da183397 50 static void io_init();
bikeNomad 21:4541da183397 51 static void clock_init();
bikeNomad 21:4541da183397 52 static void dma_init();
bikeNomad 21:4541da183397 53 static void tpm_init();
bikeNomad 21:4541da183397 54 static void dma_data_init();
heroic 8:e3249c2b7607 55 };
bikeNomad 21:4541da183397 56
bikeNomad 21:4541da183397 57 #endif
bikeNomad 21:4541da183397 58