Hideto KIHARA / TLC5940SWSPI

TLC5940 library which supports SWSPI, has API to specify grayscale PWM period and has API like Arduino library.

Fork of TLC5940 by Stefan Nielsen

TLC5940.h

Committer:
deton
Date:
2015-10-17
Revision:
4:fc83415fa28c
Parent:
3:2c0af5f5fa13
Child:
5:c35b2b62f2f3

File content as of revision 4:fc83415fa28c:

#ifndef TLC5940_H_
#define TLC5940_H_

#include "mbed.h"
#include "SWSPI.h"

class TLC5940 {
private:
    SWSPI _spi;
    PwmOut _gsclk;
    DigitalOut _xlat;
    DigitalOut _blank;
    Ticker _t;
    int _gspwmcycle_us;
    bool _gspwmcycle_repeat;
    uint16_t gs_data[16];
public:
    /**
     * Constructor.
     * @param mosi  -> SIN
     * @param miso  -> (not connect to TLC5940)
     * @param sck   -> SCLK
     * @param xlat  -> XLAT
     * @param blank -> BLANK
     * @param gsclk -> GSCLK
     * @param gspwmcycle_us grayscale PWM cycle in [us]. consists of 4096 pulses.
     * @param gspwmcycle_repeat repeat grayscale PWM cycle or not.
     *   If true, send BLANK pulse after each grayscale PWM cycle using Ticker.
     */
    TLC5940(PinName mosi, PinName miso, PinName sck, PinName xlat, PinName blank, PinName gsclk,
            int gspwmcycle_us = 20480, bool gspwmcycle_repeat = true);
    void set(int channel, uint16_t brightness);
    void flush();
    void run();
    void refresh();
};

#endif /* TLC5940_H_ */