nima aghli / Mbed 2 deprecated WS2811

for thww WS2811 RGB

Dependencies:   mbed

Fork of WS2811 by Bulme Projekt

WS2811.cpp@4:46b52a6a943b, 2016-11-23 (annotated)

Committer:
nimaaghli
Date:
Wed Nov 23 19:41:34 2016 +0000
Revision:
4:46b52a6a943b
Parent:
3:2fbb2f0e79fb 
first commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Drohne 0:c6a6fa47dadc 1 /*
Drohne 0:c6a6fa47dadc 2 * Creator: Matthias Hemmer
Drohne 0:c6a6fa47dadc 3 * created: 15.04.2016
Drohne 0:c6a6fa47dadc 4 *
Drohne 0:c6a6fa47dadc 5 * function: write a register of 8 bits to the WS2811 RGBs
Drohne 0:c6a6fa47dadc 6 */
Drohne 0:c6a6fa47dadc 7 #include "mbed.h"
Drohne 0:c6a6fa47dadc 8 #include "WS2811.h"
Drohne 0:c6a6fa47dadc 9
Drohne 2:ccf3f0c36dae 10 uint8_t ledmatrix[LED_MAX][3];
Drohne 0:c6a6fa47dadc 11
nimaaghli 4:46b52a6a943b 12 DigitalOut myled(PB_5);
Drohne 0:c6a6fa47dadc 13
Drohne 0:c6a6fa47dadc 14 void writeled(int pos, uint8_t g, uint8_t r, uint8_t b){ // define the register
Drohne 0:c6a6fa47dadc 15 ledmatrix[pos][0] = g; // green register
Drohne 0:c6a6fa47dadc 16 ledmatrix[pos][1] = r; // red register
Drohne 0:c6a6fa47dadc 17 ledmatrix[pos][2] = b; // blue register
Drohne 0:c6a6fa47dadc 18 }
Drohne 0:c6a6fa47dadc 19
Drohne 0:c6a6fa47dadc 20 void writeledbit(char wert){
Drohne 0:c6a6fa47dadc 21
Drohne 0:c6a6fa47dadc 22 if(wert){ // example: if(1) than make what is declatrated
Drohne 0:c6a6fa47dadc 23 myled = 1;
Drohne 0:c6a6fa47dadc 24 for(int i=0;i<HIGH_SIGNAL;i++) __nop(); // wait is to slow, becouse reset = 50µs
Drohne 0:c6a6fa47dadc 25 myled = 0;
Drohne 0:c6a6fa47dadc 26 for(int i=0;i<LOW_SIGNAL;i++) __nop();
Drohne 0:c6a6fa47dadc 27 }
Drohne 0:c6a6fa47dadc 28
Drohne 0:c6a6fa47dadc 29 else{ // else make this
Drohne 0:c6a6fa47dadc 30 myled = 1;
Drohne 0:c6a6fa47dadc 31 for(int i=0;i<LOW_SIGNAL;i++) __nop();
Drohne 0:c6a6fa47dadc 32 myled = 0;
Drohne 0:c6a6fa47dadc 33 for(int i=0;i<HIGH_SIGNAL;i++) __nop();
Drohne 0:c6a6fa47dadc 34 }
Drohne 0:c6a6fa47dadc 35 }
Drohne 0:c6a6fa47dadc 36
Drohne 0:c6a6fa47dadc 37 void sendColours(int pos, uint8_t r, uint8_t g, uint8_t b){
Drohne 3:2fbb2f0e79fb 38 //__disable_irq; // disable interrupt to speed up
Drohne 0:c6a6fa47dadc 39 writeled(pos, g, r, b); // call the underprogramm
Drohne 0:c6a6fa47dadc 40
Drohne 0:c6a6fa47dadc 41 for(int led = 0; led < LED_MAX; led++){ // write the matrix on the RGBs
Drohne 0:c6a6fa47dadc 42 for(int i = 0; i < 3; i++){ // write the position
Drohne 0:c6a6fa47dadc 43 for(int b = 0; b < 8; b++){ // write the bit
Drohne 0:c6a6fa47dadc 44 writeledbit(ledmatrix[led][i] & 1<<b); // write the byte on the RGBs
Drohne 0:c6a6fa47dadc 45 }
Drohne 0:c6a6fa47dadc 46 }
Drohne 0:c6a6fa47dadc 47 }
Drohne 0:c6a6fa47dadc 48 wait(DELAY); // wait for the supply voltage
Drohne 3:2fbb2f0e79fb 49 // __enable_irq; // enable interrupt pin for the basic uses
Drohne 0:c6a6fa47dadc 50 }