Test Code for OV7670 Camera module with FIFO AL422
Dependencies: MODSERIAL mbed ov7670
You can find more information in this page: https://mbed.org/users/edodm85/notebook/ov7670-camera-module/
main.cpp@4:d0d4760d32b2, 2014-02-15 (annotated)
- Committer:
- edodm85
- Date:
- Sat Feb 15 15:01:55 2014 +0000
- Revision:
- 4:d0d4760d32b2
- Parent:
- 3:b4e0cefc37f6
Updated
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
edodm85 | 0:19429e334b75 | 1 | /* |
edodm85 | 0:19429e334b75 | 2 | * Author: Edoardo De Marchi |
edodm85 | 3:b4e0cefc37f6 | 3 | * Date: 07/04/13 |
edodm85 | 0:19429e334b75 | 4 | * Notes: OV7670 + FIFO AL422B camera test |
edodm85 | 0:19429e334b75 | 5 | */ |
edodm85 | 0:19429e334b75 | 6 | |
edodm85 | 0:19429e334b75 | 7 | #include "main.h" |
edodm85 | 0:19429e334b75 | 8 | |
edodm85 | 2:bbd557817319 | 9 | #define VGA 307200 //640*480 |
edodm85 | 2:bbd557817319 | 10 | #define QVGA 76800 //320*240 |
edodm85 | 2:bbd557817319 | 11 | #define QQVGA 19200 //160*120 |
edodm85 | 2:bbd557817319 | 12 | |
edodm85 | 2:bbd557817319 | 13 | static char format = ' '; |
edodm85 | 2:bbd557817319 | 14 | static int resolution = 0; |
edodm85 | 0:19429e334b75 | 15 | |
edodm85 | 0:19429e334b75 | 16 | |
edodm85 | 0:19429e334b75 | 17 | void rxCallback(MODSERIAL_IRQ_INFO *q) |
edodm85 | 0:19429e334b75 | 18 | { |
edodm85 | 0:19429e334b75 | 19 | new_send = true; |
edodm85 | 0:19429e334b75 | 20 | } |
edodm85 | 0:19429e334b75 | 21 | |
edodm85 | 0:19429e334b75 | 22 | int main() |
edodm85 | 0:19429e334b75 | 23 | { |
edodm85 | 0:19429e334b75 | 24 | pc.baud(921600); |
edodm85 | 0:19429e334b75 | 25 | pc.printf("SystemCoreClock: %dMHz\r\n", SystemCoreClock/1000000); // print the clock frequency |
edodm85 | 0:19429e334b75 | 26 | led4 = 0; |
edodm85 | 0:19429e334b75 | 27 | |
edodm85 | 0:19429e334b75 | 28 | t.start(); |
edodm85 | 0:19429e334b75 | 29 | pc.attach(&rxCallback, MODSERIAL::RxIrq); |
edodm85 | 0:19429e334b75 | 30 | |
edodm85 | 0:19429e334b75 | 31 | while(1) |
edodm85 | 0:19429e334b75 | 32 | { |
edodm85 | 4:d0d4760d32b2 | 33 | if(new_send) |
edodm85 | 4:d0d4760d32b2 | 34 | { |
edodm85 | 0:19429e334b75 | 35 | int i = 0; |
edodm85 | 0:19429e334b75 | 36 | |
edodm85 | 0:19429e334b75 | 37 | while(pc.readable()) |
edodm85 | 0:19429e334b75 | 38 | { |
edodm85 | 0:19429e334b75 | 39 | word[i] = pc.getc(); |
edodm85 | 0:19429e334b75 | 40 | i++; |
edodm85 | 0:19429e334b75 | 41 | } |
edodm85 | 0:19429e334b75 | 42 | parse_cmd(); |
edodm85 | 0:19429e334b75 | 43 | } |
edodm85 | 0:19429e334b75 | 44 | wait_ms(50); |
edodm85 | 0:19429e334b75 | 45 | } |
edodm85 | 0:19429e334b75 | 46 | } |
edodm85 | 0:19429e334b75 | 47 | |
edodm85 | 0:19429e334b75 | 48 | |
edodm85 | 0:19429e334b75 | 49 | |
edodm85 | 4:d0d4760d32b2 | 50 | void parse_cmd() |
edodm85 | 4:d0d4760d32b2 | 51 | { |
edodm85 | 0:19429e334b75 | 52 | new_send = false; |
edodm85 | 0:19429e334b75 | 53 | |
edodm85 | 2:bbd557817319 | 54 | if(strcmp("snap", word) == 0) |
edodm85 | 0:19429e334b75 | 55 | { |
edodm85 | 2:bbd557817319 | 56 | CameraSnap(); |
edodm85 | 0:19429e334b75 | 57 | memset(word, 0, sizeof(word)); |
edodm85 | 0:19429e334b75 | 58 | }else |
edodm85 | 3:b4e0cefc37f6 | 59 | if(strcmp("init_bw_VGA", word) == 0) // Set up for 640*480 pixels RAW |
edodm85 | 0:19429e334b75 | 60 | { |
edodm85 | 2:bbd557817319 | 61 | format = 'b'; |
edodm85 | 2:bbd557817319 | 62 | resolution = VGA; |
edodm85 | 2:bbd557817319 | 63 | if(camera.Init('b', VGA) != 1) |
edodm85 | 2:bbd557817319 | 64 | { |
edodm85 | 2:bbd557817319 | 65 | pc.printf("Init Fail\r\n"); |
edodm85 | 2:bbd557817319 | 66 | } |
edodm85 | 2:bbd557817319 | 67 | pc.printf("Initializing done\r\n"); |
edodm85 | 2:bbd557817319 | 68 | memset(word, 0, sizeof(word)); |
edodm85 | 2:bbd557817319 | 69 | }else |
edodm85 | 2:bbd557817319 | 70 | if(strcmp("init_yuv_QVGA", word) == 0) // Set up for 320*240 pixels YUV422 |
edodm85 | 2:bbd557817319 | 71 | { |
edodm85 | 2:bbd557817319 | 72 | format = 'y'; |
edodm85 | 2:bbd557817319 | 73 | resolution = QVGA; |
edodm85 | 2:bbd557817319 | 74 | if(camera.Init('b', QVGA) != 1) |
edodm85 | 2:bbd557817319 | 75 | { |
edodm85 | 2:bbd557817319 | 76 | pc.printf("Init Fail\r\n"); |
edodm85 | 2:bbd557817319 | 77 | } |
edodm85 | 2:bbd557817319 | 78 | pc.printf("Initializing done\r\n"); |
edodm85 | 0:19429e334b75 | 79 | memset(word, 0, sizeof(word)); |
edodm85 | 2:bbd557817319 | 80 | }else |
edodm85 | 2:bbd557817319 | 81 | if(strcmp("init_rgb_QVGA", word) == 0) // Set up for 320*240 pixels RGB565 |
edodm85 | 2:bbd557817319 | 82 | { |
edodm85 | 2:bbd557817319 | 83 | format = 'r'; |
edodm85 | 2:bbd557817319 | 84 | resolution = QVGA; |
edodm85 | 2:bbd557817319 | 85 | if(camera.Init('r', QVGA) != 1) |
edodm85 | 2:bbd557817319 | 86 | { |
edodm85 | 2:bbd557817319 | 87 | pc.printf("Init Fail\r\n"); |
edodm85 | 2:bbd557817319 | 88 | } |
edodm85 | 2:bbd557817319 | 89 | pc.printf("Initializing done\r\n"); |
edodm85 | 2:bbd557817319 | 90 | memset(word, 0, sizeof(word)); |
edodm85 | 2:bbd557817319 | 91 | }else |
edodm85 | 2:bbd557817319 | 92 | if(strcmp("init_bw_QVGA", word) == 0) // Set up for 320*240 pixels YUV (Only Y) |
edodm85 | 0:19429e334b75 | 93 | { |
edodm85 | 2:bbd557817319 | 94 | format = 'b'; |
edodm85 | 2:bbd557817319 | 95 | resolution = QVGA; |
edodm85 | 2:bbd557817319 | 96 | if(camera.Init('b', QVGA) != 1) |
edodm85 | 2:bbd557817319 | 97 | { |
edodm85 | 2:bbd557817319 | 98 | pc.printf("Init Fail\r\n"); |
edodm85 | 2:bbd557817319 | 99 | } |
edodm85 | 2:bbd557817319 | 100 | pc.printf("Initializing done\r\n"); |
edodm85 | 2:bbd557817319 | 101 | memset(word, 0, sizeof(word)); |
edodm85 | 2:bbd557817319 | 102 | }else |
edodm85 | 2:bbd557817319 | 103 | if(strcmp("init_yuv_QQVGA", word) == 0) // Set up for 160*120 pixels YUV422 |
edodm85 | 2:bbd557817319 | 104 | { |
edodm85 | 2:bbd557817319 | 105 | format = 'y'; |
edodm85 | 2:bbd557817319 | 106 | resolution = QQVGA; |
edodm85 | 2:bbd557817319 | 107 | if(camera.Init('b', QQVGA) != 1) |
edodm85 | 2:bbd557817319 | 108 | { |
edodm85 | 2:bbd557817319 | 109 | pc.printf("Init Fail\r\n"); |
edodm85 | 2:bbd557817319 | 110 | } |
edodm85 | 2:bbd557817319 | 111 | pc.printf("Initializing done\r\n"); |
edodm85 | 2:bbd557817319 | 112 | memset(word, 0, sizeof(word)); |
edodm85 | 2:bbd557817319 | 113 | }else |
edodm85 | 2:bbd557817319 | 114 | if(strcmp("init_rgb_QQVGA", word) == 0) // Set up for 160*120 pixels RGB565 |
edodm85 | 2:bbd557817319 | 115 | { |
edodm85 | 2:bbd557817319 | 116 | format = 'r'; |
edodm85 | 2:bbd557817319 | 117 | resolution = QQVGA; |
edodm85 | 2:bbd557817319 | 118 | if(camera.Init('r', QQVGA) != 1) |
edodm85 | 0:19429e334b75 | 119 | { |
edodm85 | 0:19429e334b75 | 120 | pc.printf("Init Fail\r\n"); |
edodm85 | 0:19429e334b75 | 121 | } |
edodm85 | 0:19429e334b75 | 122 | pc.printf("Initializing done\r\n"); |
edodm85 | 0:19429e334b75 | 123 | memset(word, 0, sizeof(word)); |
edodm85 | 0:19429e334b75 | 124 | }else |
edodm85 | 2:bbd557817319 | 125 | if(strcmp("init_bw_QQVGA", word) == 0) // Set up for 160*120 pixels YUV (Only Y) |
edodm85 | 2:bbd557817319 | 126 | { |
edodm85 | 2:bbd557817319 | 127 | format = 'b'; |
edodm85 | 2:bbd557817319 | 128 | resolution = QQVGA; |
edodm85 | 2:bbd557817319 | 129 | if(camera.Init('b', QQVGA) != 1) |
edodm85 | 0:19429e334b75 | 130 | { |
edodm85 | 0:19429e334b75 | 131 | pc.printf("Init Fail\r\n"); |
edodm85 | 0:19429e334b75 | 132 | } |
edodm85 | 0:19429e334b75 | 133 | pc.printf("Initializing done\r\n"); |
edodm85 | 0:19429e334b75 | 134 | memset(word, 0, sizeof(word)); |
edodm85 | 0:19429e334b75 | 135 | }else |
edodm85 | 0:19429e334b75 | 136 | if(strcmp("reset", word) == 0) |
edodm85 | 0:19429e334b75 | 137 | { |
edodm85 | 0:19429e334b75 | 138 | mbed_reset(); |
edodm85 | 0:19429e334b75 | 139 | }else |
edodm85 | 0:19429e334b75 | 140 | if(strcmp("time", word) == 0) |
edodm85 | 0:19429e334b75 | 141 | { |
edodm85 | 2:bbd557817319 | 142 | pc.printf("Tot time acq + send (mbed): %dms\r\n", t2-t1); |
edodm85 | 0:19429e334b75 | 143 | memset(word, 0, sizeof(word)); |
edodm85 | 4:d0d4760d32b2 | 144 | }else |
edodm85 | 4:d0d4760d32b2 | 145 | if(strcmp("reg_status", word) == 0) |
edodm85 | 4:d0d4760d32b2 | 146 | { |
edodm85 | 4:d0d4760d32b2 | 147 | int i = 0; |
edodm85 | 4:d0d4760d32b2 | 148 | pc.printf("AD : +0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F"); |
edodm85 | 4:d0d4760d32b2 | 149 | for (i=0;i<OV7670_REGMAX;i++) |
edodm85 | 4:d0d4760d32b2 | 150 | { |
edodm85 | 4:d0d4760d32b2 | 151 | int data; |
edodm85 | 4:d0d4760d32b2 | 152 | data = camera.ReadReg(i); // READ REG |
edodm85 | 4:d0d4760d32b2 | 153 | if ((i & 0x0F) == 0) |
edodm85 | 4:d0d4760d32b2 | 154 | { |
edodm85 | 4:d0d4760d32b2 | 155 | pc.printf("\r\n%02X : ",i); |
edodm85 | 4:d0d4760d32b2 | 156 | } |
edodm85 | 4:d0d4760d32b2 | 157 | pc.printf("%02X ",data); |
edodm85 | 4:d0d4760d32b2 | 158 | } |
edodm85 | 4:d0d4760d32b2 | 159 | pc.printf("\r\n"); |
edodm85 | 2:bbd557817319 | 160 | } |
edodm85 | 2:bbd557817319 | 161 | |
edodm85 | 0:19429e334b75 | 162 | memset(word, 0, sizeof(word)); |
edodm85 | 0:19429e334b75 | 163 | |
edodm85 | 0:19429e334b75 | 164 | } |
edodm85 | 0:19429e334b75 | 165 | |
edodm85 | 0:19429e334b75 | 166 | |
edodm85 | 4:d0d4760d32b2 | 167 | void CameraSnap() |
edodm85 | 4:d0d4760d32b2 | 168 | { |
edodm85 | 0:19429e334b75 | 169 | led4 = 1; |
edodm85 | 2:bbd557817319 | 170 | |
edodm85 | 2:bbd557817319 | 171 | // Kick things off by capturing an image |
edodm85 | 0:19429e334b75 | 172 | camera.CaptureNext(); |
edodm85 | 2:bbd557817319 | 173 | while(camera.CaptureDone() == false); |
edodm85 | 0:19429e334b75 | 174 | // Start reading in the image data from the camera hardware buffer |
edodm85 | 0:19429e334b75 | 175 | camera.ReadStart(); |
edodm85 | 2:bbd557817319 | 176 | t1 = t.read_ms(); |
edodm85 | 0:19429e334b75 | 177 | |
edodm85 | 2:bbd557817319 | 178 | for(int x = 0; x<resolution; x++) |
edodm85 | 0:19429e334b75 | 179 | { |
edodm85 | 2:bbd557817319 | 180 | // Read in the first half of the image |
edodm85 | 3:b4e0cefc37f6 | 181 | if(format == 'b' && resolution != VGA) |
edodm85 | 2:bbd557817319 | 182 | { |
edodm85 | 2:bbd557817319 | 183 | camera.ReadOnebyte(); |
edodm85 | 2:bbd557817319 | 184 | }else |
edodm85 | 2:bbd557817319 | 185 | if(format == 'y' || format == 'r') |
edodm85 | 2:bbd557817319 | 186 | { |
edodm85 | 2:bbd557817319 | 187 | pc.putc(camera.ReadOnebyte()); |
edodm85 | 2:bbd557817319 | 188 | } |
edodm85 | 2:bbd557817319 | 189 | // Read in the Second half of the image |
edodm85 | 2:bbd557817319 | 190 | pc.putc(camera.ReadOnebyte()); // Y only |
edodm85 | 0:19429e334b75 | 191 | } |
edodm85 | 2:bbd557817319 | 192 | |
edodm85 | 2:bbd557817319 | 193 | camera.ReadStop(); |
edodm85 | 4:d0d4760d32b2 | 194 | t2 = t.read_ms(); |
edodm85 | 0:19429e334b75 | 195 | |
edodm85 | 4:d0d4760d32b2 | 196 | camera.CaptureNext(); |
edodm85 | 4:d0d4760d32b2 | 197 | while(camera.CaptureDone() == false); |
edodm85 | 0:19429e334b75 | 198 | |
edodm85 | 2:bbd557817319 | 199 | pc.printf("Snap_done\r\n"); |
edodm85 | 0:19429e334b75 | 200 | led4 = 0; |
edodm85 | 2:bbd557817319 | 201 | } |