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
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?
User | Revision | Line number | New 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 |