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@13:1f65330abe92, 2013-07-23 (annotated)

Committer:
heroic
Date:
Tue Jul 23 22:32:14 2013 +0000
Revision:
13:1f65330abe92
Parent:
12:7ebd51549c04
Child:
17:b4e9d8f4baa9
Rework timing for constant execution time;  do direct bitband writes for improved speed;  change interrupt handling (turns out we can't have interrupts during an entire strip push, not just between bits).; ; Now works!

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.
heroic 8:e3249c2b7607 12
heroic 8:e3249c2b7607 13 #include "mbed.h"
heroic 8:e3249c2b7607 14 #include "LedStrip.h"
heroic 8:e3249c2b7607 15 #ifndef MBED_WS2811_H
heroic 8:e3249c2b7607 16 #define MBED_WS2811_H
heroic 8:e3249c2b7607 17
heroic 8:e3249c2b7607 18
heroic 8:e3249c2b7607 19 class WS2811 : public LedStrip {
heroic 8:e3249c2b7607 20
heroic 8:e3249c2b7607 21 public:
heroic 8:e3249c2b7607 22
heroic 8:e3249c2b7607 23 WS2811(PinName dataPin, PinName clockPin, int n);
heroic 8:e3249c2b7607 24 virtual void begin(void);
heroic 8:e3249c2b7607 25 virtual void show(void);
heroic 8:e3249c2b7607 26 virtual void blank(void);
heroic 8:e3249c2b7607 27 virtual void setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b);
heroic 12:7ebd51549c04 28 virtual void setPackedPixels(uint8_t * buffer, uint32_t n);
heroic 8:e3249c2b7607 29 virtual void setPixelB(uint16_t n, uint8_t b);
heroic 8:e3249c2b7607 30 virtual void setPixelG(uint16_t n, uint8_t g);
heroic 8:e3249c2b7607 31 virtual void setPixelR(uint16_t n, uint8_t r);
heroic 8:e3249c2b7607 32 virtual void setPixelColor(uint16_t n, uint32_t c);
heroic 8:e3249c2b7607 33 virtual uint16_t numPixels(void);
heroic 8:e3249c2b7607 34 virtual uint32_t Color(uint8_t, uint8_t, uint8_t);
heroic 8:e3249c2b7607 35 virtual uint32_t total_luminance(void);
heroic 8:e3249c2b7607 36
heroic 8:e3249c2b7607 37 private:
heroic 8:e3249c2b7607 38 DigitalOut dat;
heroic 8:e3249c2b7607 39 DigitalOut clk;
heroic 13:1f65330abe92 40 __IO uint32_t *data_set;
heroic 13:1f65330abe92 41 __IO uint32_t *clock_set;
heroic 13:1f65330abe92 42 __IO uint32_t *data_clr;
heroic 13:1f65330abe92 43 __IO uint32_t *clock_clr;
heroic 13:1f65330abe92 44 uint32_t clock_mask;
heroic 13:1f65330abe92 45 uint32_t data_mask;
heroic 8:e3249c2b7607 46 void write(uint8_t byte);
heroic 8:e3249c2b7607 47 void writebit(bool bit);
heroic 8:e3249c2b7607 48 void celldelay(void);
heroic 8:e3249c2b7607 49 uint8_t *pixels; // Holds LED color values
heroic 8:e3249c2b7607 50 uint16_t numLEDs; // Number of RGB LEDs in strand
heroic 8:e3249c2b7607 51 Timer guardtime;
heroic 8:e3249c2b7607 52 uint32_t bogocal;
heroic 8:e3249c2b7607 53
heroic 8:e3249c2b7607 54 };
heroic 8:e3249c2b7607 55 #endif