Diff: main.cpp

Revision:

0:afb6ebe20c1f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Dec 13 06:58:47 2014 +0000
@@ -0,0 +1,64 @@
+/*
+
+  Neopixel LED controller for mbed LPC1114 (RAMdaccha)
+ 
+  2014/12/13 by morecat_lab
+
+  This program depends on neopixel library.
+  http://developer.mbed.org/users/JacobBramley/code/PixelArray/
+
+*/
+#include "mbed.h"
+#include "neopixel.h"
+#include "LAMd.h"
+
+neopixel::Pixel pattern[] = {
+    {0x55, 0, 0xff},  // magenta
+    {0, 0, 0xff},  // blue
+    {0xaf, 0xaf, 0xaf}, // white
+    {0, 0xff, 0xff},  // cyan
+    {0xaf, 0xaf, 0}, // yellow
+    {0, 0xff, 0}, // greem
+    {0x2f, 0, 0}, // red
+};
+
+#define MAX_PATTERN (sizeof pattern / sizeof (struct neopixel::Pixel))
+#define MAX_INDEX (MAX_PATTERN *256)
+#define NLED (4)
+#define ONE_COLOR
+
+ void generate(neopixel::Pixel * out, uint32_t index, uintptr_t val) {
+#ifdef ONE_COLOR
+    uint32_t pat1 = val / 256;
+#else
+    uint32_t pat1 = val / 256 + index;
+#endif
+    uint32_t pat2;
+    uint32_t seq = val % 256;
+    
+    if (pat1 >= MAX_PATTERN) {
+        pat1 = 0;
+    }
+    pat2 = pat1 + 1;
+    if (pat2 >= MAX_PATTERN) {
+        pat2 = 0;
+    }
+    out->red   = (pattern[pat1].red   * (256-seq) + pattern[pat2].red   * seq) /256;
+    out->green = (pattern[pat1].green * (256-seq) + pattern[pat2].green * seq) /256;
+    out->blue  = (pattern[pat1].blue  * (256-seq) + pattern[pat2].blue  * seq) /256;
+ }
+
+
+int main() {
+    DigitalIn(D3, PullDown);
+    neopixel::PixelArray array(D3);
+ 
+    uint32_t val = 0;
+    while (1) {
+      if ((++val) >= MAX_INDEX) {
+        val = 0;
+      }
+      array.update(generate, NLED, val);
+      wait_ms(10);
+    }
+}