Thomas Milburn / Mbed 2 deprecated FBRDash-tom

can't push chnages :(

Fork of FBRDash by Michael Allan

src/LEDS.cpp@2:825f572902c6, 2012-06-25 (annotated)

Committer:
intrinseca
Date:
Mon Jun 25 21:20:22 2012 +0000
Revision:
2:825f572902c6
Parent:
1:b3907b8d9f65
Child:
5:177520d43c87
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UserRevisionLine numberNew contents of line
intrinseca 1:b3907b8d9f65 1 #include "mbed.h"
intrinseca 1:b3907b8d9f65 2 #include "LEDS.h"
intrinseca 1:b3907b8d9f65 3
intrinseca 2:825f572902c6 4 //Drive the rev LEDs
intrinseca 2:825f572902c6 5
intrinseca 2:825f572902c6 6 //Initialise PWM pins
intrinseca 1:b3907b8d9f65 7 LEDS::LEDS(PwmOut _pins[])
intrinseca 1:b3907b8d9f65 8 {
intrinseca 1:b3907b8d9f65 9 pins = _pins;
intrinseca 1:b3907b8d9f65 10
intrinseca 1:b3907b8d9f65 11 pins[0].period_us(100);
intrinseca 1:b3907b8d9f65 12 }
intrinseca 1:b3907b8d9f65 13
intrinseca 2:825f572902c6 14 //Calculate new PWM values
intrinseca 1:b3907b8d9f65 15 void LEDS::refresh(float rpm)
intrinseca 1:b3907b8d9f65 16 {
intrinseca 1:b3907b8d9f65 17 int value;
intrinseca 1:b3907b8d9f65 18 int remainder;
intrinseca 1:b3907b8d9f65 19 int i;
intrinseca 1:b3907b8d9f65 20
intrinseca 2:825f572902c6 21 //Number of fully-lit LEDs
intrinseca 1:b3907b8d9f65 22 value = rpm / RESOLUTION;
intrinseca 1:b3907b8d9f65 23
intrinseca 1:b3907b8d9f65 24 for(i = 0; i < NUM_LEDS; i++)
intrinseca 1:b3907b8d9f65 25 {
intrinseca 1:b3907b8d9f65 26 if(i < value)
intrinseca 2:825f572902c6 27 {
intrinseca 2:825f572902c6 28 //First LEDs on
intrinseca 1:b3907b8d9f65 29 pins[i] = 1.0;
intrinseca 1:b3907b8d9f65 30 }
intrinseca 1:b3907b8d9f65 31 else if(i == value)
intrinseca 1:b3907b8d9f65 32 {
intrinseca 2:825f572902c6 33 //Last LED partially lit - calculate intensity and set.
intrinseca 1:b3907b8d9f65 34 remainder = (int)rpm % RESOLUTION;
intrinseca 1:b3907b8d9f65 35 pins[i] = (float)remainder / (float)RESOLUTION;
intrinseca 1:b3907b8d9f65 36 }
intrinseca 1:b3907b8d9f65 37 else
intrinseca 1:b3907b8d9f65 38 {
intrinseca 2:825f572902c6 39 //All others off
intrinseca 1:b3907b8d9f65 40 pins[i] = 0.0;
intrinseca 1:b3907b8d9f65 41 }
intrinseca 1:b3907b8d9f65 42 }
intrinseca 1:b3907b8d9f65 43 }