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@4:fc83415fa28c, 2015-10-17 (annotated)

Committer:
deton
Date:
Sat Oct 17 02:47:11 2015 +0000
Revision:
4:fc83415fa28c
Parent:
3:2c0af5f5fa13
Child:
5:c35b2b62f2f3
Change refresh() as public to be used by caller that refreshes using Timer instead of Ticker in TLC5940 class.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Julepalme 0:bdf7a64b89a7 1 #ifndef TLC5940_H_
Julepalme 0:bdf7a64b89a7 2 #define TLC5940_H_
Julepalme 0:bdf7a64b89a7 3
Julepalme 0:bdf7a64b89a7 4 #include "mbed.h"
deton 1:b188393f5b49 5 #include "SWSPI.h"
Julepalme 0:bdf7a64b89a7 6
Julepalme 0:bdf7a64b89a7 7 class TLC5940 {
Julepalme 0:bdf7a64b89a7 8 private:
deton 1:b188393f5b49 9 SWSPI _spi;
deton 1:b188393f5b49 10 PwmOut _gsclk;
deton 1:b188393f5b49 11 DigitalOut _xlat;
deton 3:2c0af5f5fa13 12 DigitalOut _blank;
deton 1:b188393f5b49 13 Ticker _t;
deton 3:2c0af5f5fa13 14 int _gspwmcycle_us;
deton 3:2c0af5f5fa13 15 bool _gspwmcycle_repeat;
deton 1:b188393f5b49 16 uint16_t gs_data[16];
Julepalme 0:bdf7a64b89a7 17 public:
deton 3:2c0af5f5fa13 18 /**
deton 3:2c0af5f5fa13 19 * Constructor.
deton 3:2c0af5f5fa13 20 * @param mosi -> SIN
deton 3:2c0af5f5fa13 21 * @param miso -> (not connect to TLC5940)
deton 3:2c0af5f5fa13 22 * @param sck -> SCLK
deton 3:2c0af5f5fa13 23 * @param xlat -> XLAT
deton 3:2c0af5f5fa13 24 * @param blank -> BLANK
deton 3:2c0af5f5fa13 25 * @param gsclk -> GSCLK
deton 3:2c0af5f5fa13 26 * @param gspwmcycle_us grayscale PWM cycle in [us]. consists of 4096 pulses.
deton 3:2c0af5f5fa13 27 * @param gspwmcycle_repeat repeat grayscale PWM cycle or not.
deton 3:2c0af5f5fa13 28 * If true, send BLANK pulse after each grayscale PWM cycle using Ticker.
deton 3:2c0af5f5fa13 29 */
deton 3:2c0af5f5fa13 30 TLC5940(PinName mosi, PinName miso, PinName sck, PinName xlat, PinName blank, PinName gsclk,
deton 3:2c0af5f5fa13 31 int gspwmcycle_us = 20480, bool gspwmcycle_repeat = true);
deton 1:b188393f5b49 32 void set(int channel, uint16_t brightness);
Julepalme 0:bdf7a64b89a7 33 void flush();
Julepalme 0:bdf7a64b89a7 34 void run();
deton 4:fc83415fa28c 35 void refresh();
Julepalme 0:bdf7a64b89a7 36 };
Julepalme 0:bdf7a64b89a7 37
Julepalme 0:bdf7a64b89a7 38 #endif /* TLC5940_H_ */