Tsuyoshi TSUCHIMOTO
/
Synthesizer
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Occilator.cpp@3:32094530d55e, 2016-01-30 (annotated)
- Committer:
- 117Florian
- Date:
- Sat Jan 30 09:26:02 2016 +0000
- Revision:
- 3:32094530d55e
- Child:
- 4:2febde858269
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Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| 117Florian | 3:32094530d55e | 1 | #include "mbed.h" |
| 117Florian | 3:32094530d55e | 2 | #include "global.h" |
| 117Florian | 3:32094530d55e | 3 | #include "Occilator.h" |
| 117Florian | 3:32094530d55e | 4 | |
| 117Florian | 3:32094530d55e | 5 | static long interrupt_us; |
| 117Florian | 3:32094530d55e | 6 | static int part_num=0; |
| 117Florian | 3:32094530d55e | 7 | static Occilator* part[OCCILATOR_PART_NUM]; |
| 117Florian | 3:32094530d55e | 8 | static Ticker sTicker; |
| 117Florian | 3:32094530d55e | 9 | static long total_value_in_this_span; |
| 117Florian | 3:32094530d55e | 10 | static AnalogOut sAnalogOut(p18); |
| 117Florian | 3:32094530d55e | 11 | |
| 117Florian | 3:32094530d55e | 12 | /* interrupt handler */ |
| 117Florian | 3:32094530d55e | 13 | /*static void tick(uint32_t id);*/ |
| 117Florian | 3:32094530d55e | 14 | static void tick(); |
| 117Florian | 3:32094530d55e | 15 | |
| 117Florian | 3:32094530d55e | 16 | Occilator::Occilator(long interrupt_us) |
| 117Florian | 3:32094530d55e | 17 | { |
| 117Florian | 3:32094530d55e | 18 | myled1=1; |
| 117Florian | 3:32094530d55e | 19 | ::interrupt_us=interrupt_us; |
| 117Florian | 3:32094530d55e | 20 | if(part_num==0) |
| 117Florian | 3:32094530d55e | 21 | { |
| 117Florian | 3:32094530d55e | 22 | sTicker.attach_us(::tick,interrupt_us); |
| 117Florian | 3:32094530d55e | 23 | } |
| 117Florian | 3:32094530d55e | 24 | part_num++; |
| 117Florian | 3:32094530d55e | 25 | for(int i=0;i<OCCILATOR_PART_NUM;i++) |
| 117Florian | 3:32094530d55e | 26 | { |
| 117Florian | 3:32094530d55e | 27 | if(part[i]==NULL) |
| 117Florian | 3:32094530d55e | 28 | { |
| 117Florian | 3:32094530d55e | 29 | part[i]=this; |
| 117Florian | 3:32094530d55e | 30 | break; |
| 117Florian | 3:32094530d55e | 31 | } |
| 117Florian | 3:32094530d55e | 32 | } |
| 117Florian | 3:32094530d55e | 33 | |
| 117Florian | 3:32094530d55e | 34 | m_Volume=0x10000; |
| 117Florian | 3:32094530d55e | 35 | } |
| 117Florian | 3:32094530d55e | 36 | |
| 117Florian | 3:32094530d55e | 37 | Occilator::~Occilator() |
| 117Florian | 3:32094530d55e | 38 | { |
| 117Florian | 3:32094530d55e | 39 | part_num--; |
| 117Florian | 3:32094530d55e | 40 | for(int i=0;i<OCCILATOR_PART_NUM;i++) |
| 117Florian | 3:32094530d55e | 41 | { |
| 117Florian | 3:32094530d55e | 42 | if(part[i]==this) |
| 117Florian | 3:32094530d55e | 43 | { |
| 117Florian | 3:32094530d55e | 44 | part[i]=NULL; |
| 117Florian | 3:32094530d55e | 45 | break; |
| 117Florian | 3:32094530d55e | 46 | } |
| 117Florian | 3:32094530d55e | 47 | } |
| 117Florian | 3:32094530d55e | 48 | if(part_num<=0) |
| 117Florian | 3:32094530d55e | 49 | { |
| 117Florian | 3:32094530d55e | 50 | sTicker.detach(); |
| 117Florian | 3:32094530d55e | 51 | } |
| 117Florian | 3:32094530d55e | 52 | } |
| 117Florian | 3:32094530d55e | 53 | |
| 117Florian | 3:32094530d55e | 54 | void Occilator::setOmega(long speed) |
| 117Florian | 3:32094530d55e | 55 | { |
| 117Florian | 3:32094530d55e | 56 | m_Omega=speed; |
| 117Florian | 3:32094530d55e | 57 | myled2=1; |
| 117Florian | 3:32094530d55e | 58 | } |
| 117Florian | 3:32094530d55e | 59 | |
| 117Florian | 3:32094530d55e | 60 | void Occilator::setVolume(int volume) |
| 117Florian | 3:32094530d55e | 61 | { |
| 117Florian | 3:32094530d55e | 62 | m_Volume=volume; |
| 117Florian | 3:32094530d55e | 63 | } |
| 117Florian | 3:32094530d55e | 64 | |
| 117Florian | 3:32094530d55e | 65 | unsigned long Occilator::tick() |
| 117Florian | 3:32094530d55e | 66 | { |
| 117Florian | 3:32094530d55e | 67 | m_Angle+=m_Omega; |
| 117Florian | 3:32094530d55e | 68 | if (m_Angle & 0x80000000) |
| 117Florian | 3:32094530d55e | 69 | { |
| 117Florian | 3:32094530d55e | 70 | myled3 = 1; |
| 117Florian | 3:32094530d55e | 71 | return (0xffff*m_Volume) >> 16; |
| 117Florian | 3:32094530d55e | 72 | } |
| 117Florian | 3:32094530d55e | 73 | else |
| 117Florian | 3:32094530d55e | 74 | { |
| 117Florian | 3:32094530d55e | 75 | myled3 = 0; |
| 117Florian | 3:32094530d55e | 76 | return 0; |
| 117Florian | 3:32094530d55e | 77 | } |
| 117Florian | 3:32094530d55e | 78 | } |
| 117Florian | 3:32094530d55e | 79 | |
| 117Florian | 3:32094530d55e | 80 | void ::tick() |
| 117Florian | 3:32094530d55e | 81 | { |
| 117Florian | 3:32094530d55e | 82 | long long value=0; |
| 117Florian | 3:32094530d55e | 83 | |
| 117Florian | 3:32094530d55e | 84 | for (int i=0;i<OCCILATOR_PART_NUM;i++) |
| 117Florian | 3:32094530d55e | 85 | { |
| 117Florian | 3:32094530d55e | 86 | if (part[i]!=NULL) |
| 117Florian | 3:32094530d55e | 87 | { |
| 117Florian | 3:32094530d55e | 88 | value+=total_value_in_this_span + part[i]->tick(); |
| 117Florian | 3:32094530d55e | 89 | } |
| 117Florian | 3:32094530d55e | 90 | } |
| 117Florian | 3:32094530d55e | 91 | value = value>=0x10000 ? 0xffff : value; |
| 117Florian | 3:32094530d55e | 92 | sAnalogOut.write_u16(value); |
| 117Florian | 3:32094530d55e | 93 | myled4=value > 0x80000000; |
| 117Florian | 3:32094530d55e | 94 | } |