Antonio De Lima Fernandes / Mbed 2 deprecated GUILED_8x8_Demo

Simple 8x8 LED Matrix controller which interfaces with a Processing GUI over serial to display sketches

Dependencies:   Multi_WS2811 mbed

Fork of Multi_WS2811_test by Ned Konz

main.cpp@20:b9d76e567637, 2013-12-21 (annotated)

Committer:
bikeNomad
Date:
Sat Dec 21 04:32:21 2013 +0000
Revision:
20:b9d76e567637
Parent:
19:600deef36348
Child:
21:4541da183397
still trying to get DMA to work

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bikeNomad 17:b4e9d8f4baa9 1 #include "mbed.h"
bikeNomad 18:d98353e8c61c 2 #include "WS2811.h"
bikeNomad 19:600deef36348 3 #include "Colors.h"
bikeNomad 17:b4e9d8f4baa9 4
bikeNomad 20:b9d76e567637 5 const unsigned nLEDs = 60*4;
bikeNomad 20:b9d76e567637 6
bikeNomad 20:b9d76e567637 7 const PinName dataOutput = PTD2;
bikeNomad 20:b9d76e567637 8 const PinName sckOutput = PTD1;
bikeNomad 20:b9d76e567637 9 SPI_Type *spiPort = SPI0;
bikeNomad 20:b9d76e567637 10
bikeNomad 20:b9d76e567637 11 DigitalOut debugOut(PTD3);
bikeNomad 20:b9d76e567637 12 Serial pc(USBTX, USBRX);
bikeNomad 20:b9d76e567637 13
bikeNomad 20:b9d76e567637 14 // @brief sets different colors in each of the LEDs of a strip
bikeNomad 20:b9d76e567637 15 // @param strip the light strip
bikeNomad 20:b9d76e567637 16 // @param sat saturation, 0.0 - 1.0
bikeNomad 20:b9d76e567637 17 // @param brite brightness, 0.0 - 1.0
bikeNomad 20:b9d76e567637 18 // @param hueShift shift, 0.0 - 1.0 is equivalent to 0 - 360 degrees
bikeNomad 20:b9d76e567637 19 void showRainbow(WS2811 &strip, float sat, float brite, float hueShift)
bikeNomad 20:b9d76e567637 20 {
bikeNomad 20:b9d76e567637 21 unsigned nLEDs = strip.numPixels();
bikeNomad 20:b9d76e567637 22 for (unsigned i = 0; i < nLEDs; i++) {
bikeNomad 20:b9d76e567637 23 uint8_t r, g, b;
bikeNomad 20:b9d76e567637 24 float hue = ((float)i / (float)nLEDs) + hueShift;
bikeNomad 20:b9d76e567637 25 HSBtoRGB(hue, sat, brite, &r, &g, &b);
bikeNomad 20:b9d76e567637 26 strip.setPixelColor(i, LedStrip::Color(r, g, b));
bikeNomad 20:b9d76e567637 27 }
bikeNomad 20:b9d76e567637 28 strip.begin();
bikeNomad 20:b9d76e567637 29 }
bikeNomad 20:b9d76e567637 30 void showTestPattern(WS2811 &strip)
bikeNomad 20:b9d76e567637 31 {
bikeNomad 20:b9d76e567637 32 unsigned nLEDs = strip.numPixels();
bikeNomad 20:b9d76e567637 33 for (unsigned i = 0; i < nLEDs; i++) {
bikeNomad 20:b9d76e567637 34 strip.setPixelColor(i, LedStrip::Color(0xff,0,0x55));
bikeNomad 20:b9d76e567637 35 }
bikeNomad 20:b9d76e567637 36 strip.show();
bikeNomad 20:b9d76e567637 37 }
bikeNomad 20:b9d76e567637 38 void dump_spi_settings(SPI_Type const *spi)
bikeNomad 20:b9d76e567637 39 {
bikeNomad 20:b9d76e567637 40 pc.printf("SPI C1=%#02x, C2=%#02x, BR=%d, S=%#02x, D=%#02x, M=%02x\r\n", spi->C1, spi->C2, spi->BR, spi->S, spi->D, spi->M);
bikeNomad 20:b9d76e567637 41 pc.printf("DMA DSR_BCR=%#08lx, SAR=%p, DAR=%p, DCR=%#08lx\r\n",
bikeNomad 20:b9d76e567637 42 (unsigned long)DMA0->DMA[0].DSR_BCR,
bikeNomad 20:b9d76e567637 43 DMA0->DMA[0].SAR,
bikeNomad 20:b9d76e567637 44 DMA0->DMA[0].DAR,
bikeNomad 20:b9d76e567637 45 DMA0->DMA[0].DCR);
bikeNomad 20:b9d76e567637 46 }
bikeNomad 20:b9d76e567637 47
bikeNomad 17:b4e9d8f4baa9 48 int main(void)
bikeNomad 17:b4e9d8f4baa9 49 {
bikeNomad 20:b9d76e567637 50 pc.baud(115200);
bikeNomad 20:b9d76e567637 51 pc.printf("LEDs: %d\r\n", nLEDs);
bikeNomad 20:b9d76e567637 52 debugOut = 0;
bikeNomad 19:600deef36348 53
bikeNomad 20:b9d76e567637 54 // NLEDs MOSI SCK
bikeNomad 20:b9d76e567637 55 WS2811 lightStrip(nLEDs, spiPort, dataOutput, sckOutput);
bikeNomad 20:b9d76e567637 56
bikeNomad 20:b9d76e567637 57 lightStrip.begin();
bikeNomad 20:b9d76e567637 58 dump_spi_settings(spiPort);
bikeNomad 19:600deef36348 59
bikeNomad 20:b9d76e567637 60 // float sat = 1.0;
bikeNomad 20:b9d76e567637 61 // float brite = 0.25;
bikeNomad 20:b9d76e567637 62 // float hueShift = 0.0;
bikeNomad 20:b9d76e567637 63 // float hueShiftIncrement = 1.0 / (360.0 / 30.0);
bikeNomad 20:b9d76e567637 64 for (;;) {
bikeNomad 20:b9d76e567637 65 // debugOut = 1;
bikeNomad 20:b9d76e567637 66 // showRainbow(lightStrip, sat, brite, hueShift);
bikeNomad 20:b9d76e567637 67 showTestPattern(lightStrip);
bikeNomad 20:b9d76e567637 68
bikeNomad 20:b9d76e567637 69 // debugOut = 0;
bikeNomad 20:b9d76e567637 70 // hueShift += hueShiftIncrement;
bikeNomad 20:b9d76e567637 71 }
bikeNomad 17:b4e9d8f4baa9 72 }