Yuji Notsu / Mbed 2 deprecated OV7670_camera_test

This program is for OV7670 and TFT-LCD(REL225L01)

Dependencies:   mbed

main.cpp@0:03f32e3679c8, 2012-02-16 (annotated)

Committer:
y_notsu
Date:
Thu Feb 16 14:51:28 2012 +0000
Revision:
0:03f32e3679c8

        

        
Who changed what in which revision?

        

            
                
UserRevisionLine numberNew contents of line

            
            


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#include "mbed.h"





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#include "OV7670.h"





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#include "REL225L01.h"





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REL225L01 tft;





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DigitalOut myled1(LED1);





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DigitalOut myled2(LED2);





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DigitalOut myled3(LED3);





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DigitalOut myled4(LED4);





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InterruptIn VSYNC_IN(p5);





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DigitalOut CMOS_CS(p20);





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DigitalOut EN_EXCLK(p21);





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DigitalOut EN_595(p23);





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I2C i2c(p9,p10); //sda, scl





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void flip1()





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{





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    EN_595 = 0;





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    tft.lcd_cw_start();





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    EN_595 = 1;   





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    EN_EXCLK = 1;





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    CMOS_CS = 0;





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}





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void flip2()





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{





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    EN_595 = 0;





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    tft.lcd_cw_end();





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    EN_595 = 1;





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    EN_EXCLK = 0;





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    CMOS_CS = 1;





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}





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int main() {





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   char cmd[2];





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   CMOS_CS = 1;   





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   EN_EXCLK=0;





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   EN_595=0;





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   myled1=1;





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   i2c.start();





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   //





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   //cmd[0] = REG_CLKRC; //





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   //cmd[1] = 0x01; //Set Camera Active





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   //i2c.write(OV7670_I2C_ADDR,cmd,2); // send string





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   //wait(0.07); //could also pull,65ms is typical





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   regval_list *vals=ov7670_default_regs;





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   //while(vals->reg_num!=0xff||vals->value!=0xff)





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   while(vals->reg_num!=0xff||vals->value!=0xff)





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   {





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    cmd[0] = vals->reg_num;





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    cmd[1] = vals->value;





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    i2c.write(OV7670_I2C_ADDR,cmd,2);





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    wait(0.01);





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   vals++;





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   }





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   vals=ov7670_fmt_rgb565;





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   //while(vals->reg_num!=0xff||vals->value!=0xff)





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   while(vals->reg_num!=0xff||vals->value!=0xff)





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   {





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    cmd[0] = vals->reg_num;





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    cmd[1] = vals->value;





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    i2c.write(OV7670_I2C_ADDR,cmd,2);





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    wait(0.01);





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   vals++;





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   }





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   wait(2);





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   unsigned char v;





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   // Horizontal setting: 11bits, top 8 live in hstart and hstop. Bottom 3 of





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   // hstart are in href[2:0], bottom 3 of hstop in href[5:3]. There is





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   //a mystery "edge offset" value in the top two bit fo href.





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   cmd[0] = REG_HSTART;





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   cmd[1] = (hstart>>3)&0xff;





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   i2c.write(OV7670_I2C_ADDR,cmd,2);





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   wait(0.01);





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   cmd[0] = REG_HSTOP;





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   cmd[1] = (hstop >> 3) & 0xff;





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   i2c.write(OV7670_I2C_ADDR,cmd,2);





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   //v = (0xb6 & 0xc0) | ((hstop & 0x07)<<3)| (hstart & 0x07);





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   v = (0x80 & 0xc0) | ((hstop & 0x07)<<3)| (hstart & 0x07);





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   wait(0.01);





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   cmd[0] = REG_HREF;





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   cmd[1] = v;





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   i2c.write(OV7670_I2C_ADDR,cmd,2);





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   /*





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    * Vertical : simillar arrangement, but only 10 bits





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    */





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   cmd[0] = REG_VSTART;





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   cmd[1] = (vstart>>2)&0xff;





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   i2c.write(OV7670_I2C_ADDR,cmd,2);





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   wait(0.01);





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   cmd[0] = REG_VSTOP;





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   cmd[1] = (vstop >>2) & 0xff;





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   i2c.write(OV7670_I2C_ADDR,cmd,2);





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   v = (0x0a & 0xf0) | ((vstop & 0x03) <<2) | (vstart & 0x03);





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   cmd[0] = REG_VREF;





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   cmd[1] = v;





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   wait(0.01);





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   i2c.write(OV7670_I2C_ADDR,cmd,2);





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   cmd[0] =  REG_COM7;





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   cmd[1] = COM7_FMT_QVGA | COM7_RGB;





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   wait(0.01);





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   i2c.write(OV7670_I2C_ADDR,cmd,2);





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   i2c.stop();





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   myled1=0;





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   myled2=1;





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   // TFT-LCD setting





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   tft.lcd_init();





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   tft.lcd_clear(BLUE);





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   //wait(1);





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   //tft.lcd_clear(RED);





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   //wait(1);





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   tft.lcd_cw_start();





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   //Changing Internal/External WR, Data by VSYNC signal of CMOS Camera module 





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   //LCD module write period : 2sec





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   EN_595 = 1;





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   VSYNC_IN.fall(&flip1); 





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   VSYNC_IN.rise(&flip2);





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   //wait(0.28);





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   //Stop Re-Display 





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   //tft.lcd_cw_end();





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   //VSYNC_IN.fall(&flip2);





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   myled2=0;





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    while(1) {





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        myled3 = 1;





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        wait(0.2);





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        myled3 = 0;





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        wait(0.2);





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    }





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}