David Knight / Mbed 2 deprecated lichtspiel

Fork of lichtspiel for mbed

Dependencies:   PololuLedStrip mbed

Diff: Pulser.cpp

Revision:
0:8dc213146b30
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Pulser.cpp	Sat May 19 14:27:12 2018 +0000
@@ -0,0 +1,31 @@
+#include "Pulser.h"
+
+Pulser::Pulser(PinName _pin):
+out(_pin)
+{
+  lastUpdate = 0;
+  value = 65535;
+  direction = -256;
+  timer.start();
+}
+
+void Pulser::pulse() {
+  uint32_t now = timer.read_ms();
+  while (now - lastUpdate > delay) {
+    lastUpdate += delay;
+    value += direction;
+    if (value >= 69120 || value <= 53760) direction = -direction;
+  }
+  if (value < 65535) out.write_u16(value);
+}
+
+void Pulser::steady() {
+  out.write_u16(32768);
+}
+
+void Pulser::off() {
+  out.write_u16(0);
+  value = 65535;
+  direction = -256;
+  lastUpdate = timer.read_ms();
+}