Jasper Wallace / LPD8806

Library for LPD8806 (and probably LPD8803/LPD8809) PWM LED driver chips, strips and pixels. Standard connected to 1st hardware SPI module. Data -> p5 and Clock -> p7 use a fixed sized buffer rather than malloc - if we use malloc rtos is unhappy...

Fork of LPD8806 by Jelmer Tiete

LPD8806.h@2:5d654eba3240, 2014-05-30 (annotated)

Committer:
Jasper
Date:
Fri May 30 03:37:16 2014 +0000
Revision:
2:5d654eba3240
Parent:
1:6ebd3ac910b6 
use a static buffer rather than using malloc - for some reason the malloc memory is somewhere that clashes with the RTOS/Ethernet/Internet stuff, don't know why...

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ehbmbed2 0:12e734116fea 1 // Mbed library to control LPD8806-based RGB LED Strips
ehbmbed2 0:12e734116fea 2 // (c) 2011 Jelmer Tiete
ehbmbed2 0:12e734116fea 3 // This library is ported from the Arduino implementation of Adafruit Industries
ehbmbed2 0:12e734116fea 4 // found at: http://github.com/adafruit/LPD8806
ehbmbed2 0:12e734116fea 5 // and their strips: http://www.adafruit.com/products/306
ehbmbed2 0:12e734116fea 6 // Released under the MIT License: http://mbed.org/license/mit
ehbmbed2 1:6ebd3ac910b6 7 //
ehbmbed2 1:6ebd3ac910b6 8 // standard connected to 1st hardware SPI
ehbmbed2 1:6ebd3ac910b6 9 // LPD8806 <> MBED
ehbmbed2 1:6ebd3ac910b6 10 // DATA -> P5
ehbmbed2 1:6ebd3ac910b6 11 // CLOCK -> p7
ehbmbed2 0:12e734116fea 12 /*****************************************************************************/
ehbmbed2 0:12e734116fea 13
ehbmbed2 0:12e734116fea 14 #include "mbed.h"
ehbmbed2 0:12e734116fea 15 #ifndef MBED_LPD8806_H
ehbmbed2 0:12e734116fea 16 #define MBED_LPD8806_H
ehbmbed2 0:12e734116fea 17
ehbmbed2 0:12e734116fea 18 class LPD8806 {
ehbmbed2 0:12e734116fea 19
ehbmbed2 0:12e734116fea 20 public:
ehbmbed2 0:12e734116fea 21
ehbmbed2 0:12e734116fea 22 LPD8806(uint16_t n);
Jasper 2:5d654eba3240 23 int
Jasper 2:5d654eba3240 24 pixels_ok(void);
ehbmbed2 0:12e734116fea 25 void
ehbmbed2 0:12e734116fea 26 begin(void),
ehbmbed2 0:12e734116fea 27 show(void),
ehbmbed2 0:12e734116fea 28 setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b),
ehbmbed2 0:12e734116fea 29 setPixelColor(uint16_t n, uint32_t c);
ehbmbed2 0:12e734116fea 30 uint16_t
ehbmbed2 0:12e734116fea 31 numPixels(void);
ehbmbed2 0:12e734116fea 32 uint32_t
ehbmbed2 0:12e734116fea 33 Color(uint8_t, uint8_t, uint8_t);
ehbmbed2 0:12e734116fea 34
ehbmbed2 0:12e734116fea 35 private:
ehbmbed2 0:12e734116fea 36
ehbmbed2 0:12e734116fea 37 uint8_t
Jasper 2:5d654eba3240 38 pixels[32 * 3]; // Holds LED color values
ehbmbed2 0:12e734116fea 39 uint16_t
ehbmbed2 0:12e734116fea 40 numLEDs; // Number of RGB LEDs in strand
ehbmbed2 0:12e734116fea 41
ehbmbed2 0:12e734116fea 42 void
ehbmbed2 0:12e734116fea 43 writezeros(uint16_t n);
ehbmbed2 0:12e734116fea 44 };
ehbmbed2 0:12e734116fea 45 #endif