David Knight / Mbed 2 deprecated lichtspiel

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Dependencies:   PololuLedStrip mbed

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Show/hide line numbers Pulser.cpp Source File

Pulser.cpp

00001 #include "Pulser.h"
00002 
00003 Pulser::Pulser(PinName _pin):
00004 out(_pin)
00005 {
00006   lastUpdate = 0;
00007   value = 65535;
00008   direction = -256;
00009   timer.start();
00010 }
00011 
00012 void Pulser::pulse() {
00013   uint32_t now = timer.read_ms();
00014   while (now - lastUpdate > delay) {
00015     lastUpdate += delay;
00016     value += direction;
00017     if (value >= 69120 || value <= 53760) direction = -direction;
00018   }
00019   if (value < 65535) out.write_u16(value);
00020 }
00021 
00022 void Pulser::steady() {
00023   out.write_u16(32768);
00024 }
00025 
00026 void Pulser::off() {
00027   out.write_u16(0);
00028   value = 65535;
00029   direction = -256;
00030   lastUpdate = timer.read_ms();
00031 }
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