Nando Daenen
Dimming the leds one by one. After each led is fully lit it will go out, the next will start ligthing up.
main.cpp@0:a5c8d616b253, 2010-10-12 (annotated)
- Committer:
- LNSound
- Date:
- Tue Oct 12 19:24:07 2010 +0000
- Revision:
- 0:a5c8d616b253
- Child:
- 1:20d55e2596f5
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| LNSound | 0:a5c8d616b253 | 1 | /* |
| LNSound | 0:a5c8d616b253 | 2 | * mbed demo code |
| LNSound | 0:a5c8d616b253 | 3 | * |
| LNSound | 0:a5c8d616b253 | 4 | * This code has been made for a training session. |
| LNSound | 0:a5c8d616b253 | 5 | * |
| LNSound | 0:a5c8d616b253 | 6 | * Copyright (c) 2010 NXP Semiconductors Japan |
| LNSound | 0:a5c8d616b253 | 7 | * Released under the MIT License: http://mbed.org/license/mit |
| LNSound | 0:a5c8d616b253 | 8 | * |
| LNSound | 0:a5c8d616b253 | 9 | * revision 1.0 18-Feb-2010 1st release |
| LNSound | 0:a5c8d616b253 | 10 | */ |
| LNSound | 0:a5c8d616b253 | 11 | |
| LNSound | 0:a5c8d616b253 | 12 | #include "mbed.h" |
| LNSound | 0:a5c8d616b253 | 13 | |
| LNSound | 0:a5c8d616b253 | 14 | PwmOut led[] = { LED4, LED3, LED2, LED1 }; |
| LNSound | 0:a5c8d616b253 | 15 | |
| LNSound | 0:a5c8d616b253 | 16 | int main() { |
| LNSound | 0:a5c8d616b253 | 17 | |
| LNSound | 0:a5c8d616b253 | 18 | unsigned char rate, rate2, rate3, rate4; |
| LNSound | 0:a5c8d616b253 | 19 | |
| LNSound | 0:a5c8d616b253 | 20 | rate=0; |
| LNSound | 0:a5c8d616b253 | 21 | rate2=0; |
| LNSound | 0:a5c8d616b253 | 22 | rate3=0; |
| LNSound | 0:a5c8d616b253 | 23 | rate4=0; |
| LNSound | 0:a5c8d616b253 | 24 | while ( 1 ) |
| LNSound | 0:a5c8d616b253 | 25 | { |
| LNSound | 0:a5c8d616b253 | 26 | |
| LNSound | 0:a5c8d616b253 | 27 | |
| LNSound | 0:a5c8d616b253 | 28 | led[ 0 ] = rate / 255.0; |
| LNSound | 0:a5c8d616b253 | 29 | led[ 1 ] = rate2 / 255.0; |
| LNSound | 0:a5c8d616b253 | 30 | led[ 2 ] = rate3 / 255.0; |
| LNSound | 0:a5c8d616b253 | 31 | led[ 3 ] = rate4 / 255.0; |
| LNSound | 0:a5c8d616b253 | 32 | |
| LNSound | 0:a5c8d616b253 | 33 | |
| LNSound | 0:a5c8d616b253 | 34 | // wait( 0.01 ); |
| LNSound | 0:a5c8d616b253 | 35 | |
| LNSound | 0:a5c8d616b253 | 36 | if (rate <255 && rate2 ==0 && rate3==0 && rate4==0) |
| LNSound | 0:a5c8d616b253 | 37 | { |
| LNSound | 0:a5c8d616b253 | 38 | rate++; |
| LNSound | 0:a5c8d616b253 | 39 | } |
| LNSound | 0:a5c8d616b253 | 40 | if (rate == 255) |
| LNSound | 0:a5c8d616b253 | 41 | rate=0; |
| LNSound | 0:a5c8d616b253 | 42 | |
| LNSound | 0:a5c8d616b253 | 43 | |
| LNSound | 0:a5c8d616b253 | 44 | if (rate == 0 && rate2 <255 && rate3==0 && rate4==0) |
| LNSound | 0:a5c8d616b253 | 45 | { |
| LNSound | 0:a5c8d616b253 | 46 | rate2++; |
| LNSound | 0:a5c8d616b253 | 47 | } |
| LNSound | 0:a5c8d616b253 | 48 | if (rate2 == 255) |
| LNSound | 0:a5c8d616b253 | 49 | rate2=0; |
| LNSound | 0:a5c8d616b253 | 50 | |
| LNSound | 0:a5c8d616b253 | 51 | if (rate == 0 && rate2 ==0 && rate3 <255 && rate4==0) |
| LNSound | 0:a5c8d616b253 | 52 | { |
| LNSound | 0:a5c8d616b253 | 53 | rate3++; |
| LNSound | 0:a5c8d616b253 | 54 | } |
| LNSound | 0:a5c8d616b253 | 55 | if (rate3 == 255) |
| LNSound | 0:a5c8d616b253 | 56 | rate3=0; |
| LNSound | 0:a5c8d616b253 | 57 | |
| LNSound | 0:a5c8d616b253 | 58 | if (rate ==0 && rate2 ==0 && rate3==0 && rate4<255) |
| LNSound | 0:a5c8d616b253 | 59 | { |
| LNSound | 0:a5c8d616b253 | 60 | rate4++; |
| LNSound | 0:a5c8d616b253 | 61 | } |
| LNSound | 0:a5c8d616b253 | 62 | if (rate4 == 255) |
| LNSound | 0:a5c8d616b253 | 63 | rate4=0; |
| LNSound | 0:a5c8d616b253 | 64 | |
| LNSound | 0:a5c8d616b253 | 65 | |
| LNSound | 0:a5c8d616b253 | 66 | |
| LNSound | 0:a5c8d616b253 | 67 | /* for (unsigned char rate3=0; rate<=255; rate3++) |
| LNSound | 0:a5c8d616b253 | 68 | { |
| LNSound | 0:a5c8d616b253 | 69 | led[ 1 ] = rate3 / 255.0; |
| LNSound | 0:a5c8d616b253 | 70 | // wait( 0.01 ); |
| LNSound | 0:a5c8d616b253 | 71 | } |
| LNSound | 0:a5c8d616b253 | 72 | |
| LNSound | 0:a5c8d616b253 | 73 | for (unsigned char rate4=0; rate<=255; rate4++) |
| LNSound | 0:a5c8d616b253 | 74 | { |
| LNSound | 0:a5c8d616b253 | 75 | led[ 3 ] = rate4 / 255.0; |
| LNSound | 0:a5c8d616b253 | 76 | // wait( 0.01 ); |
| LNSound | 0:a5c8d616b253 | 77 | } |
| LNSound | 0:a5c8d616b253 | 78 | |
| LNSound | 0:a5c8d616b253 | 79 | |
| LNSound | 0:a5c8d616b253 | 80 | // led[ 2 ] = rate / 255.0; |
| LNSound | 0:a5c8d616b253 | 81 | //// led[ 1 ] = 1- (rate / 255.0); |
| LNSound | 0:a5c8d616b253 | 82 | // led[ 3 ] = 1- (rate / 255.0); |
| LNSound | 0:a5c8d616b253 | 83 | // rate++; |
| LNSound | 0:a5c8d616b253 | 84 | |
| LNSound | 0:a5c8d616b253 | 85 | */ wait( 0.01 ); |
| LNSound | 0:a5c8d616b253 | 86 | } |
| LNSound | 0:a5c8d616b253 | 87 | } |
| LNSound | 0:a5c8d616b253 | 88 | |
| LNSound | 0:a5c8d616b253 | 89 | #if 0 |
| LNSound | 0:a5c8d616b253 | 90 | // for ( int i = 0, r = rate; i < 4; i++, r += 32 ) |
| LNSound | 0:a5c8d616b253 | 91 | // led[ i ] = ((r & 0x80) ? (unsigned char)(~r) : (unsigned char)r) / 255.0; |
| LNSound | 0:a5c8d616b253 | 92 | |
| LNSound | 0:a5c8d616b253 | 93 | rate += 4; |
| LNSound | 0:a5c8d616b253 | 94 | |
| LNSound | 0:a5c8d616b253 | 95 | wait( 0.01 ); |
| LNSound | 0:a5c8d616b253 | 96 | #endif |
| LNSound | 0:a5c8d616b253 | 97 | /* |
| LNSound | 0:a5c8d616b253 | 98 | #if 0 |
| LNSound | 0:a5c8d616b253 | 99 | led[ 0 ] = (unsigned char)rate / 255.0; |
| LNSound | 0:a5c8d616b253 | 100 | led[ 2 ] = (unsigned char)rate / 255.0; |
| LNSound | 0:a5c8d616b253 | 101 | led[ 1 ] = 1- ((unsigned char)rate / 255.0); |
| LNSound | 0:a5c8d616b253 | 102 | led[ 3 ] = 1- ((unsigned char)rate / 255.0); |
| LNSound | 0:a5c8d616b253 | 103 | rate++; |
| LNSound | 0:a5c8d616b253 | 104 | |
| LNSound | 0:a5c8d616b253 | 105 | wait( 0.01 ); |
| LNSound | 0:a5c8d616b253 | 106 | #endif |
| LNSound | 0:a5c8d616b253 | 107 | */ |