Kamil Ondrousek
Jong chaotic attractor - uVGAII(SGC) 4DGL version 640x480 pin p9 - rx, pin p10 - tx, pin p11 - rst
main.cpp@0:b2f36a1db66b, 2011-09-03 (annotated)
- Committer:
- JLS
- Date:
- Sat Sep 03 14:24:28 2011 +0000
- Revision:
- 0:b2f36a1db66b
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| JLS | 0:b2f36a1db66b | 1 | #include "mbed.h" |
| JLS | 0:b2f36a1db66b | 2 | |
| JLS | 0:b2f36a1db66b | 3 | Serial _cmd (p9, p10); |
| JLS | 0:b2f36a1db66b | 4 | DigitalOut _rst (p11); |
| JLS | 0:b2f36a1db66b | 5 | |
| JLS | 0:b2f36a1db66b | 6 | void startVGA(); |
| JLS | 0:b2f36a1db66b | 7 | void baudrate(); |
| JLS | 0:b2f36a1db66b | 8 | void cls(); |
| JLS | 0:b2f36a1db66b | 9 | void pixel(int, int, int); |
| JLS | 0:b2f36a1db66b | 10 | int writeCOM(char *, int); |
| JLS | 0:b2f36a1db66b | 11 | |
| JLS | 0:b2f36a1db66b | 12 | |
| JLS | 0:b2f36a1db66b | 13 | int main() { |
| JLS | 0:b2f36a1db66b | 14 | |
| JLS | 0:b2f36a1db66b | 15 | startVGA (); |
| JLS | 0:b2f36a1db66b | 16 | |
| JLS | 0:b2f36a1db66b | 17 | float x = 1; |
| JLS | 0:b2f36a1db66b | 18 | float y = 1; |
| JLS | 0:b2f36a1db66b | 19 | |
| JLS | 0:b2f36a1db66b | 20 | float ix = 1; |
| JLS | 0:b2f36a1db66b | 21 | float iy = 1; |
| JLS | 0:b2f36a1db66b | 22 | |
| JLS | 0:b2f36a1db66b | 23 | float a = -2; |
| JLS | 0:b2f36a1db66b | 24 | float b = -2; |
| JLS | 0:b2f36a1db66b | 25 | float c = -1.2; |
| JLS | 0:b2f36a1db66b | 26 | float d = 2; |
| JLS | 0:b2f36a1db66b | 27 | |
| JLS | 0:b2f36a1db66b | 28 | while (1) { |
| JLS | 0:b2f36a1db66b | 29 | |
| JLS | 0:b2f36a1db66b | 30 | ix = sin(a*y) - cos(b*x); |
| JLS | 0:b2f36a1db66b | 31 | iy = sin(c*x) - cos(d*y); |
| JLS | 0:b2f36a1db66b | 32 | |
| JLS | 0:b2f36a1db66b | 33 | pixel(320+(150*ix),240+(110*iy),65534); |
| JLS | 0:b2f36a1db66b | 34 | |
| JLS | 0:b2f36a1db66b | 35 | x = ix; |
| JLS | 0:b2f36a1db66b | 36 | y = iy; |
| JLS | 0:b2f36a1db66b | 37 | |
| JLS | 0:b2f36a1db66b | 38 | } |
| JLS | 0:b2f36a1db66b | 39 | } |
| JLS | 0:b2f36a1db66b | 40 | |
| JLS | 0:b2f36a1db66b | 41 | |
| JLS | 0:b2f36a1db66b | 42 | void startVGA () { |
| JLS | 0:b2f36a1db66b | 43 | |
| JLS | 0:b2f36a1db66b | 44 | _rst = 1; |
| JLS | 0:b2f36a1db66b | 45 | _rst = 0; |
| JLS | 0:b2f36a1db66b | 46 | wait_ms(1); |
| JLS | 0:b2f36a1db66b | 47 | _rst = 1; |
| JLS | 0:b2f36a1db66b | 48 | wait(3); |
| JLS | 0:b2f36a1db66b | 49 | |
| JLS | 0:b2f36a1db66b | 50 | while (_cmd.readable()) _cmd.getc(); |
| JLS | 0:b2f36a1db66b | 51 | |
| JLS | 0:b2f36a1db66b | 52 | char autobaud[1] = ""; |
| JLS | 0:b2f36a1db66b | 53 | autobaud[0] = '\x55'; |
| JLS | 0:b2f36a1db66b | 54 | writeCOM(autobaud, 1); |
| JLS | 0:b2f36a1db66b | 55 | |
| JLS | 0:b2f36a1db66b | 56 | baudrate(); |
| JLS | 0:b2f36a1db66b | 57 | |
| JLS | 0:b2f36a1db66b | 58 | cls(); |
| JLS | 0:b2f36a1db66b | 59 | |
| JLS | 0:b2f36a1db66b | 60 | char dispctr[3]= ""; |
| JLS | 0:b2f36a1db66b | 61 | dispctr[0] = '\x59'; |
| JLS | 0:b2f36a1db66b | 62 | dispctr[1] = 0x0c; |
| JLS | 0:b2f36a1db66b | 63 | dispctr[2] = 0x01; |
| JLS | 0:b2f36a1db66b | 64 | writeCOM(dispctr, 3); |
| JLS | 0:b2f36a1db66b | 65 | |
| JLS | 0:b2f36a1db66b | 66 | } |
| JLS | 0:b2f36a1db66b | 67 | |
| JLS | 0:b2f36a1db66b | 68 | |
| JLS | 0:b2f36a1db66b | 69 | void pixel(int x, int y, int color) { |
| JLS | 0:b2f36a1db66b | 70 | |
| JLS | 0:b2f36a1db66b | 71 | char pixel[7]= ""; |
| JLS | 0:b2f36a1db66b | 72 | |
| JLS | 0:b2f36a1db66b | 73 | pixel[0] = '\x50'; |
| JLS | 0:b2f36a1db66b | 74 | |
| JLS | 0:b2f36a1db66b | 75 | pixel[1] = (x >> 8) & 0xFF; |
| JLS | 0:b2f36a1db66b | 76 | pixel[2] = x & 0xFF; |
| JLS | 0:b2f36a1db66b | 77 | |
| JLS | 0:b2f36a1db66b | 78 | pixel[3] = (y >> 8) & 0xFF; |
| JLS | 0:b2f36a1db66b | 79 | pixel[4] = y & 0xFF; |
| JLS | 0:b2f36a1db66b | 80 | |
| JLS | 0:b2f36a1db66b | 81 | pixel[5] = (color >> 8) & 0xFF; |
| JLS | 0:b2f36a1db66b | 82 | pixel[6] = color & 0xFF; |
| JLS | 0:b2f36a1db66b | 83 | |
| JLS | 0:b2f36a1db66b | 84 | writeCOM(pixel, 7); |
| JLS | 0:b2f36a1db66b | 85 | } |
| JLS | 0:b2f36a1db66b | 86 | |
| JLS | 0:b2f36a1db66b | 87 | |
| JLS | 0:b2f36a1db66b | 88 | void baudrate() { |
| JLS | 0:b2f36a1db66b | 89 | |
| JLS | 0:b2f36a1db66b | 90 | char baudrate[2]= ""; |
| JLS | 0:b2f36a1db66b | 91 | |
| JLS | 0:b2f36a1db66b | 92 | baudrate[0] = '\x51'; |
| JLS | 0:b2f36a1db66b | 93 | baudrate[1] = '\x0F'; |
| JLS | 0:b2f36a1db66b | 94 | |
| JLS | 0:b2f36a1db66b | 95 | int i, resp = 0; |
| JLS | 0:b2f36a1db66b | 96 | |
| JLS | 0:b2f36a1db66b | 97 | while (_cmd.readable()) _cmd.getc(); |
| JLS | 0:b2f36a1db66b | 98 | |
| JLS | 0:b2f36a1db66b | 99 | long speed = speed = 281000; |
| JLS | 0:b2f36a1db66b | 100 | |
| JLS | 0:b2f36a1db66b | 101 | for (i = 0; i <2; i++) _cmd.putc(baudrate[i]); |
| JLS | 0:b2f36a1db66b | 102 | _cmd.baud(speed); |
| JLS | 0:b2f36a1db66b | 103 | |
| JLS | 0:b2f36a1db66b | 104 | while (!_cmd.readable()) wait_ms(1); |
| JLS | 0:b2f36a1db66b | 105 | |
| JLS | 0:b2f36a1db66b | 106 | if (_cmd.readable()) resp = _cmd.getc(); |
| JLS | 0:b2f36a1db66b | 107 | switch (resp) { |
| JLS | 0:b2f36a1db66b | 108 | case '\x06' : |
| JLS | 0:b2f36a1db66b | 109 | resp = 1; |
| JLS | 0:b2f36a1db66b | 110 | break; |
| JLS | 0:b2f36a1db66b | 111 | case '\x15' : |
| JLS | 0:b2f36a1db66b | 112 | resp = -1; |
| JLS | 0:b2f36a1db66b | 113 | break; |
| JLS | 0:b2f36a1db66b | 114 | default : |
| JLS | 0:b2f36a1db66b | 115 | resp = 0; |
| JLS | 0:b2f36a1db66b | 116 | break; |
| JLS | 0:b2f36a1db66b | 117 | } |
| JLS | 0:b2f36a1db66b | 118 | |
| JLS | 0:b2f36a1db66b | 119 | } |
| JLS | 0:b2f36a1db66b | 120 | |
| JLS | 0:b2f36a1db66b | 121 | |
| JLS | 0:b2f36a1db66b | 122 | int writeCOM(char *command, int number) { |
| JLS | 0:b2f36a1db66b | 123 | |
| JLS | 0:b2f36a1db66b | 124 | int i, resp = 0; |
| JLS | 0:b2f36a1db66b | 125 | |
| JLS | 0:b2f36a1db66b | 126 | while (_cmd.readable()) _cmd.getc(); |
| JLS | 0:b2f36a1db66b | 127 | |
| JLS | 0:b2f36a1db66b | 128 | for (i = 0; i < number; i++) _cmd.putc(command[i]); |
| JLS | 0:b2f36a1db66b | 129 | |
| JLS | 0:b2f36a1db66b | 130 | while (!_cmd.readable()) wait_ms(1); |
| JLS | 0:b2f36a1db66b | 131 | if (_cmd.readable()) resp = _cmd.getc(); |
| JLS | 0:b2f36a1db66b | 132 | switch (resp) { |
| JLS | 0:b2f36a1db66b | 133 | case '\x06' : |
| JLS | 0:b2f36a1db66b | 134 | resp = 1; |
| JLS | 0:b2f36a1db66b | 135 | break; |
| JLS | 0:b2f36a1db66b | 136 | case '\x15' : |
| JLS | 0:b2f36a1db66b | 137 | resp = -1; |
| JLS | 0:b2f36a1db66b | 138 | break; |
| JLS | 0:b2f36a1db66b | 139 | default : |
| JLS | 0:b2f36a1db66b | 140 | resp = 0; |
| JLS | 0:b2f36a1db66b | 141 | break; |
| JLS | 0:b2f36a1db66b | 142 | } |
| JLS | 0:b2f36a1db66b | 143 | |
| JLS | 0:b2f36a1db66b | 144 | return resp; |
| JLS | 0:b2f36a1db66b | 145 | } |
| JLS | 0:b2f36a1db66b | 146 | |
| JLS | 0:b2f36a1db66b | 147 | |
| JLS | 0:b2f36a1db66b | 148 | void cls() { |
| JLS | 0:b2f36a1db66b | 149 | char cls[1] = ""; |
| JLS | 0:b2f36a1db66b | 150 | cls[0] = '\x45'; |
| JLS | 0:b2f36a1db66b | 151 | writeCOM(cls, 1); |
| JLS | 0:b2f36a1db66b | 152 | } |