angelo mottolese
ov7670 no fifo
Revision 2:90b79650f69d, committed 2020-04-20
- Comitter:
- rulla
- Date:
- Mon Apr 20 15:04:18 2020 +0000
- Parent:
- 1:e216fd4e8d9c
- Commit message:
- new
Changed in this revision
--- a/OV6620.cpp Mon Nov 21 10:04:38 2016 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,179 +0,0 @@
-#include "mbed.h"
-#include "OV6620reg.h"
-#include "OV6620.h"
-
- void OV6620::CaptureNext(void) {
- CaptureReq = true ;
- Busy = true ;
- }
-
- bool OV6620::CaptureDone(void) {
- bool result ;
- if (Busy) {
- result = false ;
- } else {
- result = Done ;
- Done = false ;
- }
- return result ;
- }
-
- void OV6620::WriteReg(int addr,int data) {
- camera.start();
- //camera.write(CAMERA_I2C_WRITE_ADDR);
- camera.write(addr);
- camera.write(data);
- camera.stop();
- wait_us(50);
- }
-
- int OV6620::ReadReg(int addr) {
- int data ;
- camera.start() ;
- camera.write(OV6620_WRITE) ;
- wait_us(OV6620_WRITEWAIT);
- camera.write(addr) ;
- camera.stop() ;
- wait_us(OV6620_WRITEWAIT);
- camera.start() ;
- camera.write(OV6620_READ) ;
- wait_us(OV6620_WRITEWAIT);
- data = camera.read(OV6620_NOACK) ;
- camera.stop() ;
- return data ;
- }
-
- int OV6620::Rreg(int addr) {
- int data ;
- camera.start() ;
- camera.write(OV6620_WRITE) ;
- wait_us(OV6620_WRITEWAIT);
- camera.write(addr) ;
- camera.stop() ;
- wait_us(OV6620_WRITEWAIT);
- camera.start() ;
- camera.write(OV6620_READ) ;
- wait_us(OV6620_WRITEWAIT);
- data = camera.read(OV6620_NOACK) ;
- camera.stop() ;
- return data ;
- }
-
- void OV6620::Reset(void) {
- WriteReg(0x12,0xa4) ; // RESET CAMERA
- wait_ms(200) ;
- }
-
- void OV6620::Wreg (int addr,int data) {
- camera.start();
- camera.write(CAMERA_I2C_WRITE_ADDR);
- camera.write(addr);
- camera.write(data);
- camera.stop();
- wait_us(50);
- }
-
- void OV6620::InitQQVGA(void) {
-
- xclk..period(1/24000000.0);
- xclk.write(.5);
-
- Reset();
- Reset();
- WriteReg(CLKRC,0x00);
- WriteReg(COM_A,0x24);
- WriteReg(COM_C,0x20);
-
- wait(0.1);
- }
-
- // vsync handler
- void OV6620::VsyncHandler(void) {
-FrameCounter++;
- }
-
- // href handler
- void OV6620::HrefHandler(void) {
- LineCounter++ ;
- }
-
- // pclk handler
- void OV6620::PclkHandler(void) {
- PixCounter++ ;
- }
-
- void OV6620::wait_posedge(InterruptIn pin) {
- while(pin);
- while(!pin);
- }
-
- void OV6620::wait_negedge(InterruptIn pin) {
- while(!pin);
- while(pin) ;
- }
-
- // Data Read
- int OV6620::ReadOneByte(void) {
- int result = (((dataP&0x07800000)>>19)|((dataP&0x078000)>>15));
- return result ;
- }
-
-
- void OV6620::shot(void) {
- uint8_t b1,b2;
- int x = 0,pix=0; // col
- int y = 0,line=0; // row
- int n = 0; // px number
- int r,g,b;
-
- while(vsync);
- while(!vsync); // pc.printf("!vsync 1 %d %d %d\r\n", vsync& 0x1,href& 0x1,pclk& 0x1);
- while(vsync);
- while(!vsync);
- while(vsync);
-
- for ( y=0; y<SIZEY; y++){
- while (!href);
- for ( x=0; x<SIZEX; x++){
-
- while(!pclk);
- if (line>0){
- b1=dataP;
- result=dataP.read();
- }
- while (pclk);
-
- while(!pclk);
- if (line>0){
- b2=dataP;
- result=dataP.read();
- }
- while (pclk);
-
- r=((bank1 & 0x1f)) ;
- g= ((bank1&0xe0)>>5 ) | ((bank0&0x7)<<3);
- b=((bank0 & 0xf8)>>3 );
- colour = (((r<<11)&0xF800)|((g<<5)&0x7E0)| (b&0x1f));
- TFT.pixel(x,y,colour);
- }
- while(href);
- }
-
- printf("x , y = %d , %d n= %d\r\n", x,y,FrameCounter);
- printf("frame\n");
- n=0;
- y=0;
- x=0;
- /*
- for(y=0; y<SIZEY; y++) {
- for(x=0; x<SIZEX; x++) {
-// pc.printf("%d %d\n",n,byt[n]);
- // pc.printf("%u\n",b1[n]);
- //TFT.pixel(x,y,b1[n]);
- n++;
- }
- }
- */
- printf("enddddddddd frame\n");
- }// SHOT
-}
\ No newline at end of file
--- a/OV6620.h Mon Nov 21 10:04:38 2016 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,89 +0,0 @@
-#include "mbed.h"
-#include "OV6620reg.h"
-#include <FastPWM.h>
-#include "ST7735_TFT.h"
-
-#define OV6620_WRITE (0xa2)
-#define OV6620_READ (0xa2)
-#define OV6620_WRITEWAIT (20)
-#define OV6620_NOACK (0)
-#define OV6620_REGMAX (201)
-#define OV6620_I2CFREQ (39000)
-
-#define SIZEX 176
-#define SIZEY 144
-#define SIZE 25344
-//
-// OV6620 + FIFO AL422B camera board test
-//
-ST7735_TFT TFT(p5, p6, p7, p8, p9, p10,"TFT");// SDA, nc, SCK,CS,A0,RESET
-int per=2;
-int pwi=1;
-
-class OV6620
-{
-public:
-
-volatile int LineCounter ;
- volatile int LastLines ;
- volatile bool CaptureReq ;
- volatile bool Busy ;
- volatile bool Done ;
- void CaptureNext(void);
- bool CaptureDone(void);
- void WriteReg(int addr,char data);
- void Reset(void);
- void test(void);
- void InitQQVGA(void);
- char ReadReg(int addr);
- int ReadOneByte(void);
- int ReadOneWord(void);
- void ReadStart(void);
- void ReadStop(void);
- void VsyncHandler(void);
- void PclkHandler(void) ;
- void wait_posedge(InterruptIn pin);
- void wait_posedge(InterruptIn pin);
-
- OV6620(
- PinName sda,// Camera I2C port
- PinName scl,// Camera I2C port
- PinName vs, // VSYNC
- PinName hr, // HREF
- PinName pic ,// /pclk
- PortName port, // 8bit bus port
- int mask, // 0b0000_0M65_4000_0321_L000_0000_0000_0000 = 0x07878000
- PinName xk
- ) : camera(sda,scl),vsync(vs),href(hr),pclk(pic),dataP(port,mask),xclk(xk)
-
- {
- pc.baud(115200) ;
-
- xclk..period(1/24000000.0);
- xclk.write(.5);
- TFT.claim(stdout); // Send stdout to the TFT display
- TFT.background(Black); // Set background to black
- TFT.foreground(White); // Set chars to white
- TFT.cls(); // Clear the screen
- TFT.set_orientation(3);
-
- camera.stop() ;
- camera.frequency(OV6620_I2CFREQ) ;
- // vsync.fall(this,&OV6620::VsyncHandler) ;
- // href.rise(this,&OV6620::HrefHandler) ;
- // pclk.rise(this,&OV6620::PclkHandler) ; // ????????????? blocca tutto il programma
- CaptureReq = false ;
- Busy = false ;
- Done = false ;
- LineCounter = 0 ;
- FrameCounter = 0 ;
- PixCounter = 0 ;
- camera.start();
- }
- protected:
- I2C camera ;
- //InterruptIn vsync,href,pclk;
- DigitalIn vsync,href,pclk;
- PortIn dataP ;
- FastPWM xclk;
- };
\ No newline at end of file
--- a/OV6620reg.h Mon Nov 21 10:04:38 2016 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,29 +0,0 @@ -#define CAMERA_I2C_FREQ 40000 -#define CAMERA_I2C_READ_ADDR 0x43 -#define CAMERA_I2C_WRITE_ADDR 0x42 -#define REG_GAIN 0x00 /* Gain lower 8 bits (rest in vref) */ -#define REG_BLUE 0x01 /* blue gain */ -#define REG_RED 0x02 /* red gain */ -#define REG_SAT 0x03 /* Pieces of GAIN, VSTART, VSTOP */ -#define COM_1 0x04 /* Control 1 */ -#define REG_CONTRAST 0x05 /* U/B Average level */ -#define REG_BRIGHTNESS 0x06 /* Y/Gb Average level */ -#define REG_SHARPNESS 0x07 /* AEC MS 5 bits */ -#define REG_AEC 0x10 /* Soft sleep mode */ -#define REG_AWB_B 0x0c /* Control 3 */ -#define REG_AWB_R 0x0D /* Control 3 */ -#define COM_R 0x0e /* All "reserved" */ -#define COM_S 0x0f /* Control 6 */ -#define CLKRC 0x11 /* Clocl control */ -#define COM_A 0x12 /* Mask for internal clock scale */ -#define COM_B 0x13 /* Register reset */ -#define COM_C 0x14 -#define COM_D 0x15 -#define HREFST 0x17 /* CIF format */ -#define PSHIFT 0x1B /* QVGA format */ -#define COM_E 0x20 /* QCIF format */ -#define AEW 0x24 /* bits 0 and 2 - RGB format */ -#define AEB 0x25 /* YUV */ -#define COM_H 0X28 /* Bayer format */ -#define COM_K 0x38 /* "Processed bayer" */ -#define COM_L 0x39 /* Control 8 */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/OV7670.cpp Mon Apr 20 15:04:18 2020 +0000
@@ -0,0 +1,547 @@
+#include "mbed.h"
+#include "OV7670reg.h"
+#include "OV7670.h"
+
+ void OV7670::CaptureNext(void) {
+ CaptureReq = true ;
+ Busy = true ;
+ }
+
+ bool OV7670::CaptureDone(void) {
+ bool result ;
+ if (Busy) {
+ result = false ;
+ } else {
+ result = Done ;
+ Done = false ;
+ }
+ return result ;
+ }
+
+ void OV7670::WriteReg(int addr,char data) {
+ camera.frequency(OV7670_I2CFREQ);
+ camera.start() ;
+ camera.write(OV7670_WRITE) ;
+ wait_us(OV7670_WRITEWAIT);
+ camera.write(addr) ;
+ wait_us(OV7670_WRITEWAIT);
+ camera.write(data) ;
+ camera.stop() ;
+ wait_us(10);
+ }
+
+ char OV7670::ReadReg(int addr) {
+ int data ;
+ camera.frequency(OV7670_I2CFREQ);
+ camera.start() ;
+ camera.write(OV7670_WRITE) ;
+ wait_us(OV7670_WRITEWAIT);
+ camera.write(addr) ;
+ camera.stop() ;
+ wait_us(OV7670_WRITEWAIT);
+ camera.start() ;
+ camera.write(OV7670_READ) ;
+ wait_us(OV7670_WRITEWAIT);
+ data = camera.read(OV7670_NOACK) ;
+ camera.stop() ;
+ wait_us(10);
+ return data ;
+ }
+
+ void OV7670::Reset(float frequ) {
+
+ wait_ms(200) ;
+ WriteReg(0x12,0xa4) ; // RESET CAMERA
+ wait_ms(200) ;
+ }
+
+void OV7670::Init2(void){
+
+ int hstart = 456, hstop = 24, vstart = 14, vstop = 494;
+ unsigned char v;
+
+ WriteReg(REG_COM7, COM7_RESET); /* reset to default values */
+ WriteReg(REG_CLKRC, 0x01);
+ WriteReg(REG_COM7, 0x10); /* output format: YUCV */
+
+ WriteReg(REG_HSTART, (hstart >> 3) & 0xff);
+ WriteReg(REG_HSTOP, (hstop >> 3) & 0xff);
+ v = ReadReg(REG_HREF);
+ v = (v & 0xc0) | ((hstop & 0x7) << 3) | (hstart & 0x7);
+ WriteReg(REG_HREF, v);
+
+ WriteReg(REG_VSTART, (vstart >> 2) & 0xff);
+ WriteReg(REG_VSTOP, (vstop >> 2) & 0xff);
+ v = ReadReg(REG_VREF);
+ v = (v & 0xf0) | ((vstop & 0x3) << 2) | (vstart & 0x3);
+ WriteReg(REG_VREF, v);
+
+ WriteReg(REG_COM3, COM3_SCALEEN | COM3_DCWEN);
+ WriteReg(REG_COM14, COM14_DCWEN | 0x01);
+ WriteReg(0x73, 0xf1);
+ WriteReg(0xa2, 0x52);
+ WriteReg(0x7b, 0x1c);
+ WriteReg(0x7c, 0x28);
+ WriteReg(0x7d, 0x3c);
+ WriteReg(0x7f, 0x69);
+ WriteReg(REG_COM9, 0x38);
+ WriteReg(0xa1, 0x0b);
+ WriteReg(0x74, 0x19);
+ WriteReg(0x9a, 0x80);
+ WriteReg(0x43, 0x14);
+ WriteReg(REG_COM13, 0xc0);
+ WriteReg(0x70, 0x3A);
+ WriteReg(0x71, 0x35);
+ WriteReg(0x72, 0x11);
+
+ /* Gamma curve values */
+ WriteReg(0x7a, 0x20);
+ WriteReg(0x7b, 0x10);
+ WriteReg(0x7c, 0x1e);
+ WriteReg(0x7d, 0x35);
+ WriteReg(0x7e, 0x5a);
+ WriteReg(0x7f, 0x69);
+ WriteReg(0x80, 0x76);
+ WriteReg(0x81, 0x80);
+ WriteReg(0x82, 0x88);
+ WriteReg(0x83, 0x8f);
+ WriteReg(0x84, 0x96);
+ WriteReg(0x85, 0xa3);
+ WriteReg(0x86, 0xaf);
+ WriteReg(0x87, 0xc4);
+ WriteReg(0x88, 0xd7);
+ WriteReg(0x89, 0xe8);
+
+ /* AGC and AEC parameters. Note we start by disabling those features,
+ then turn them only after tweaking the values. */
+ WriteReg(REG_COM8, COM8_FASTAEC | COM8_AECSTEP | COM8_BFILT);
+ WriteReg(REG_GAIN, 0);
+ WriteReg(REG_AECH, 0);
+ WriteReg(REG_COM4, 0x40); /* magic reserved bit */
+ WriteReg(REG_COM9, 0x18); /* 4x gain + magic rsvd bit */
+ WriteReg(REG_BD50MAX, 0x05);
+ WriteReg(REG_BD60MAX, 0x07);
+ WriteReg(REG_AEW, 0x95);
+ WriteReg(REG_AEB, 0x33);
+ WriteReg(REG_VPT, 0xe3);
+ WriteReg(REG_HAECC1, 0x78);
+ WriteReg(REG_HAECC2, 0x68);
+ WriteReg(0xa1, 0x03); /* magic */
+ WriteReg(REG_HAECC3, 0xd8);
+ WriteReg(REG_HAECC4, 0xd8);
+ WriteReg(REG_HAECC5, 0xf0);
+ WriteReg(REG_HAECC6, 0x90);
+ WriteReg(REG_HAECC7, 0x94);
+ WriteReg(REG_COM8,
+ COM8_FASTAEC | COM8_AECSTEP | COM8_BFILT | COM8_AGC | COM8_AEC);
+
+ /* Almost all of these are magic "reserved" values. */
+ WriteReg(REG_COM5, 0x61);
+ WriteReg(REG_COM6, 0x4b);
+ WriteReg(0x16, 0x02);
+ WriteReg(REG_MVFP, 0x07);
+ WriteReg(0x21, 0x02);
+ WriteReg(0x22, 0x91);
+ WriteReg(0x29, 0x07);
+ WriteReg(0x33, 0x0b);
+ WriteReg(0x35, 0x0b);
+ WriteReg(0x37, 0x1d);
+ WriteReg(0x38, 0x71);
+ WriteReg(0x39, 0x2a);
+ WriteReg(REG_COM12, 0x78);
+ WriteReg(0x4d, 0x40);
+ WriteReg(0x4e, 0x20);
+ WriteReg(REG_GFIX, 0);
+ WriteReg(0x6b, 0x4a);
+ WriteReg(0x74, 0x10);
+ WriteReg(0x8d, 0x4f);
+ WriteReg(0x8e, 0);
+ WriteReg(0x8f, 0);
+ WriteReg(0x90, 0);
+ WriteReg(0x91, 0);
+ WriteReg(0x96, 0);
+ WriteReg(0x9a, 0);
+ WriteReg(0xb0, 0x84);
+ WriteReg(0xb1, 0x0c);
+ WriteReg(0xb2, 0x0e);
+ WriteReg(0xb3, 0x82);
+ WriteReg(0xb8, 0x0a);
+
+ /* Matrix coefficients */
+ WriteReg(0x4f, 0x80);
+ WriteReg(0x50, 0x80);
+ WriteReg(0x51, 0);
+ WriteReg(0x52, 0x22);
+ WriteReg(0x53, 0x5e);
+ WriteReg(0x54, 0x80);
+ WriteReg(0x58, 0x9e);
+
+ /* More reserved magic, some of which tweaks white balance */
+ WriteReg(0x43, 0x0a);
+ WriteReg(0x44, 0xf0);
+ WriteReg(0x45, 0x34);
+ WriteReg(0x46, 0x58);
+ WriteReg(0x47, 0x28);
+ WriteReg(0x48, 0x3a);
+ WriteReg(0x59, 0x88);
+ WriteReg(0x5a, 0x88);
+ WriteReg(0x5b, 0x44);
+ WriteReg(0x5c, 0x67);
+ WriteReg(0x5d, 0x49);
+ WriteReg(0x5e, 0x0e);
+ WriteReg(0x6c, 0x0a);
+ WriteReg(0x6d, 0x55);
+ WriteReg(0x6e, 0x11);
+ WriteReg(0x6f, 0x9f); /* "9e for advance AWB" */
+ WriteReg(0x6a, 0x40);
+ WriteReg(REG_BLUE, 0x40);
+ WriteReg(REG_RED, 0x60);
+ WriteReg(REG_COM8,
+ COM8_FASTAEC | COM8_AECSTEP | COM8_BFILT | COM8_AGC | COM8_AEC
+ | COM8_AWB);
+ }
+
+ void OV7670::Init(float frequ,int sizeX) {
+ sync.mode(OpenDrain);
+ dataP.mode(PullDown);
+ // printf("point 3\n");
+ Reset(0.0);
+ Reset(0.0);
+ //if(sizeX==320) {
+ // WriteReg(DBLV, 0xaa); // bypass PLL
+ //WriteReg(REG_CLKRC,0x0c);//0x8c
+ WriteReg(REG_TSLB,0x0c);//0x80
+
+ /*
+ WriteReg(SCALING_XSC, 0x4a);
+ WriteReg(SCALING_YSC, 0x35);
+ WriteReg(REG_HREF, 0xa4);
+ WriteReg(REG_HSTART, 168);
+ WriteReg(REG_HSTOP, 24);
+ WriteReg(REG_VREF, 0x0a);
+ WriteReg(REG_VSTART,12);
+ WriteReg(REG_VSTOP, 492);
+ */
+
+ //WriteReg(REG_HREF, 0xc0);
+ WriteReg(REG_CLKRC,0x1c) ;//OCCHIO
+ WriteReg(REG_COM10,0x20) ;
+ WriteReg(REG_COM1,0x0) ;
+ WriteReg(REG_COM6,0xc3) ;
+ WriteReg(REG_COM7,0x14) ;
+ WriteReg(REG_COM9,0x48) ;
+ WriteReg(REG_RGB444,0x0) ;
+
+ WriteReg(REG_COM17,0x00) ;
+ WriteReg(REG_COM3,0x04) ;
+ // WriteReg(REG_COM14, 0x19);//OCCHIO
+ WriteReg(REG_COM15, 0xc0);
+ WriteReg(REG_COM2, 0x03);
+ // WriteReg(SCALING_DCWCTR,0x11);
+ // WriteReg(SCALING_PCLK_DIV,0xf2);//OCCHIO
+ // WriteReg(SCALING_PCLK_DELAY,0x02);
+ WriteReg(REG_COM8,0xc7) ;
+ WriteReg(REG_COM11,0x0a) ;//1A //0x90
+ WriteReg(REG_COM13, 0xc1);//0x88
+ WriteReg(REG_EDGE,0x04) ;
+ WriteReg(REG_PSHFT,0x0) ;
+
+
+ WriteReg(0x7a, 0x20);
+ WriteReg(0x7b, 0x1c);
+ WriteReg(0x7c, 0x28);
+ WriteReg(0x7d, 0x3c);
+ WriteReg(0x7e, 0x55);
+ WriteReg(0x7f, 0x68);
+ WriteReg(0x80, 0x76);
+ WriteReg(0x81, 0x80);
+ WriteReg(0x82, 0x88);
+ WriteReg(0x83, 0x8f);
+ WriteReg(0x84, 0x96);
+ WriteReg(0x85, 0xa3);
+ WriteReg(0x86, 0xaf);
+ WriteReg(0x87, 0xc4);
+ WriteReg(0x88, 0xd7);
+ WriteReg(0x89, 0xe8);
+
+ WriteReg(0x13, 0xe0);
+ WriteReg(0x00, 0x00);
+ WriteReg(0x10, 0x00);
+ WriteReg(0x0d, 0x00);
+ WriteReg(0x14, 0x28);
+ WriteReg(0xa5, 0x05);
+ WriteReg(0xab, 0x07);
+ WriteReg(0x24, 0x75);
+ WriteReg(0x25, 0x63);
+ WriteReg(0x26, 0xA5);
+ WriteReg(0x9f, 0x78);
+ WriteReg(0xa0, 0x68);
+ WriteReg(0xa1, 0x03);
+ WriteReg(0xa6, 0xdf);
+ WriteReg(0xa7, 0xdf);
+ WriteReg(0xa8, 0xf0);
+ WriteReg(0xa9, 0x90);
+ WriteReg(0xaa, 0x94);
+ WriteReg(0x13, 0xe5);
+
+ WriteReg(0x0e, 0x61);
+ WriteReg(0x0f, 0x4b);
+ WriteReg(0x16, 0x02);
+ WriteReg(0x21, 0x02);
+ WriteReg(0x22, 0x91);
+ WriteReg(0x29, 0x07);
+ WriteReg(0x33, 0x0b);
+ WriteReg(0x35, 0x0b);
+ WriteReg(0x37, 0x1d);
+ WriteReg(0x38, 0x71);
+ WriteReg(0x39, 0x2a);
+ WriteReg(0x3c, 0x78);
+ WriteReg(0x4d, 0x40);
+ WriteReg(0x4e, 0x20);
+ WriteReg(0x69, 0x00);
+ WriteReg(0x6b, 0x00);
+ WriteReg(0x74, 0x19);
+ WriteReg(0x8d, 0x4f);
+ WriteReg(0x8e, 0x00);
+ WriteReg(0x8f, 0x00);
+ WriteReg(0x90, 0x00);
+ WriteReg(0x91, 0x00);
+ WriteReg(0x92, 0x00);
+ WriteReg(0x96, 0x00);
+ WriteReg(0x9a, 0x80);
+ WriteReg(0xb0, 0x84);
+ WriteReg(0xb1, 0x0c);
+ WriteReg(0xb2, 0x0e);
+ WriteReg(0xb3, 0x82);
+ WriteReg(0xb8, 0x0a);
+ WriteReg(0x43, 0x14);
+ WriteReg(0x44, 0xf0);
+ WriteReg(0x45, 0x34);
+ WriteReg(0x46, 0x58);
+ WriteReg(0x47, 0x28);
+ WriteReg(0x48, 0x3a);
+ WriteReg(0x59, 0x88);
+ WriteReg(0x5a, 0x88);
+ WriteReg(0x5b, 0x44);
+ WriteReg(0x5c, 0x67);
+ WriteReg(0x5d, 0x49);
+ WriteReg(0x5e, 0x0e);
+ WriteReg(0x64, 0x04);
+ WriteReg(0x65, 0x20);
+ WriteReg(0x66, 0x05);
+ WriteReg(0x94, 0x04);
+ WriteReg(0x95, 0x08);
+ WriteReg(0x6c, 0x0a);
+ WriteReg(0x6d, 0x55);
+ WriteReg(0x6e, 0x11);
+ WriteReg(0x6f, 0x9f);
+ WriteReg(0x6a, 0x40);
+ WriteReg(0x01, 0x40);
+ WriteReg(0x02, 0x40);
+ WriteReg(0x13, 0xe7);
+ WriteReg(0x15, 0x02);
+ WriteReg(0x4f, 0x80);
+ WriteReg(0x50, 0x80);
+ WriteReg(0x51, 0x00);
+ WriteReg(0x52, 0x22);
+ WriteReg(0x53, 0x5e);
+ WriteReg(0x54, 0x80);
+ WriteReg(0x58, 0x9e);
+ WriteReg(0x41, 0x08);
+ WriteReg(0x3f, 0x00);
+ WriteReg(0x75, 0x05);
+ WriteReg(0x76, 0xe1);
+ WriteReg(0x4c, 0x00);
+ WriteReg(0x77, 0x01);
+ WriteReg(0x3d, 0xc2);
+ WriteReg(0x4b, 0x09);
+ WriteReg(0xc9, 0x60);
+ WriteReg(0x41, 0x38);
+ WriteReg(0x56, 0x40);
+ WriteReg(0x34, 0x11);
+ WriteReg(0x3b, 0x02);
+ WriteReg(0xa4, 0x89);
+ WriteReg(0x96, 0x00);
+ WriteReg(0x97, 0x30);
+ WriteReg(0x98, 0x20);
+ WriteReg(0x99, 0x30);
+ WriteReg(0x9a, 0x84);
+ WriteReg(0x9b, 0x29);
+ WriteReg(0x9c, 0x03);
+ WriteReg(0x9d, 0x4c);
+ WriteReg(0x9e, 0x3f);
+ WriteReg(0x78, 0x04);
+ WriteReg(0x79, 0x01);
+ WriteReg(0xc8, 0xf0);
+ WriteReg(0x79, 0x0f);
+ WriteReg(0xc8, 0x00);
+ WriteReg(0x79, 0x10);
+ WriteReg(0xc8, 0x7e);
+ WriteReg(0x79, 0x0a);
+ WriteReg(0xc8, 0x80);
+ WriteReg(0x79, 0x0b);
+ WriteReg(0xc8, 0x01);
+ WriteReg(0x79, 0x0c);
+ WriteReg(0xc8, 0x0f);
+ WriteReg(0x79, 0x0d);
+ WriteReg(0xc8, 0x20);
+ WriteReg(0x79, 0x09);
+ WriteReg(0xc8, 0x80);
+ WriteReg(0x79, 0x02);
+ WriteReg(0xc8, 0xc0);
+ WriteReg(0x79, 0x03);
+ WriteReg(0xc8, 0x40);
+ WriteReg(0x79, 0x05);
+ WriteReg(0xc8, 0x30);
+ WriteReg(0x79, 0x26);
+ WriteReg(0x09, 0x03);
+ WriteReg(0x3b, 0x42);
+ // }
+ WriteReg(0xff, 0xff); /* END MARKER */
+
+ // printf("Init\n");
+ }
+
+ // vsync handler
+ void OV7670::VsyncHandler(void) {
+ }
+
+
+ // href handler
+ void OV7670::HrefHandler(void) {
+ LineCounter++;
+ }
+
+ // pclk handler
+ void OV7670::PclkHandler(void) {
+ PixCounter++ ;
+ }
+
+ void OV7670::wait_posedge(InterruptIn pin) {
+ while(pin);
+ while(!pin);
+ while(pin){
+}
+ }
+
+ void OV7670::wait_negedge(InterruptIn pin) {
+ while(!pin);
+ while(pin) ;
+ }
+
+ uint8_t OV7670::ReadOneByte(void) {
+ int data= dataP.read();
+ uint8_t result=(uint8_t)(((data&0x3E)>>1)|((data&0xE000)>>8));
+ return result ;
+ }
+
+// void OV7670::shot(int sizeX, int sizeY, uint8_t *bank0) {
+ void OV7670::shot(int sizeX, int sizeY,uint8_t *bank0) {
+
+//uint8_t bank0[76800];
+
+ uint8_t b1,b2;
+ int x = 0,pix=0; // col
+ int y = 0,line=0; // row
+ int n = 0; // px number
+ uint8_t r,g,b;
+ int colour;
+ int i=0,j;
+ int test=sync.read();
+
+uint8_t vsync=(test&0x80)>>7;
+uint8_t href=(test&0x40)>>6;
+uint8_t pclk=(test&0x20)>>5;
+ //printf("sync= %d, v,h,p = %d , %d, %d sizeX= %d\n",test, vsync,href,pclk,sizeX);
+
+ // printf("FrameStart\n");
+
+ while(vsync==0){
+ test=sync.read();
+ vsync=(test&0x80)>>7;
+ }
+ while(vsync==1){
+ test=sync.read();
+ vsync=(test&0x80)>>7;
+ }
+
+ n=0;
+
+ for ( y=0; y<sizeY; y++){
+x=0;
+
+ while (href==0){
+ test=sync.read();
+ href=(test&0x40)>>6;
+ }
+
+ for ( x=0; x<sizeX; x++){
+
+ while (pclk==0){
+ test=sync.read();
+ pclk=(test&0x20)>>5;
+ }
+
+ b1=ReadOneByte();
+
+ while(pclk==1){
+ test=sync.read();
+ pclk=(test&0x20)>>5;
+ }
+
+
+ while(pclk==0){
+ test=sync.read();
+ pclk=(test&0x20)>>5;
+ }
+
+ b2=ReadOneByte();
+
+ while (pclk==1){
+ test=sync.read();
+ pclk=(test&0x20)>>5;
+ }
+
+ r=((b1>>3) & 0x1f) ;
+ g= ((((b1&0x07)<<3) &0x3f) | ((b2&0xe0) >>5))<<2;
+ b=(b2 & 0xf8) >>3;
+ //colour=(((int)b1)<<8)|((int)b2);
+ // printf("%u ",r); //ACTION!!!
+// printf("%u_u ",b1,b2); //ACTION!!!
+ bank0[n] =b;
+ n++;
+ // x++;
+ }
+
+ // }
+ // y++;
+ // printf("\n");
+/*
+ if (href==1){
+ while (href==1){
+ test=sync.read();
+ href=(test&0x40)>>6;
+ }
+ }*/
+ test=sync.read();
+ href=(test&0x40)>>6;
+}
+
+ // printf("FrameEnd\n");
+//printf(" PIXELS= %d",n);
+
+i=0;
+int c=0;
+
+/* for(j=0;j<sizeY;j++){
+ for(i=0;i<sizeX;i++) {
+ printf("%u ",bank0[c]);
+// wait_us(100);
+ c++;
+ }
+ printf("\n");
+ }
+ printf("FrameEnd\n");
+ */
+
+ }// SHOT
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/OV7670.h Mon Apr 20 15:04:18 2020 +0000
@@ -0,0 +1,75 @@
+#pragma once
+#include "mbed.h"
+#include "OV7670reg.h"
+//
+// OV7670
+
+class OV7670
+{
+public:
+
+volatile int LineCounter ;
+ volatile int LastLines ;
+ volatile bool CaptureReq ;
+ volatile bool Busy ;
+ volatile bool Done ;
+ volatile int PixCounter;
+ void CaptureNext(void);
+ bool CaptureDone(void);
+ void WriteReg(int addr,char data);
+ void Reset(float frequ);
+ void test(void);
+ void Init(float frequ,int sizeX);
+ void Init2(void);
+ char ReadReg(int addr);
+ uint8_t ReadOneByte(void);
+ int ReadOneWord(void);
+ void ReadStart(void);
+ void ReadStop(void);
+ void VsyncHandler(void);
+ void HrefHandler(void);
+ void PclkHandler(void) ;
+ void wait_posedge(InterruptIn pin);
+ void wait_negedge(InterruptIn pin);
+ void shot(int sizeX, int sizeY,uint8_t *bank0);
+
+ OV7670(
+ PinName sda,// Camera I2C port
+ PinName scl,// Camera I2C port
+ /*
+ PinName vs, // VSYNC
+ PinName hr, // HREF
+ PinName pic ,// /pclk
+ */
+ PortName ports, // 8bit bus port
+ int masks,
+ PortName port, // 8bit bus port
+ int mask
+ ) : camera(sda,scl),sync(ports,masks),dataP(port,mask)
+
+ {
+
+
+
+ camera.stop() ;
+ camera.frequency(OV7670_I2CFREQ) ;
+ // vsync.fall(this,&OV7670::VsyncHandler) ;
+ // href.rise(callback(this, &OV7670::HrefHandler)) ;
+ // pclk.rise(this,&OV7670::PclkHandler) ; // ????????????? blocca tutto il programma
+ CaptureReq = false ;
+ Busy = false ;
+ Done = false ;
+ LineCounter = 0 ;
+ camera.start();
+ }
+ protected:
+ I2C camera ;
+ //InterruptIn vsync,href,pclk;
+ PortIn sync;
+ /*
+ DigitalIn vsync;
+ DigitalIn href;
+ DigitalIn pclk;
+ */
+ PortIn dataP;
+ };
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/OV7670reg.h Mon Apr 20 15:04:18 2020 +0000 @@ -0,0 +1,155 @@ + +#define SIZE SIZEX*SIZEY + +#define OV7670_WRITE (0x42) +#define OV7670_READ (0x43) +#define OV7670_WRITEWAIT (20) +#define OV7670_NOACK (0) +#define OV7670_REGMAX (201) +#define OV7670_I2CFREQ (100000) + +#define SCALING_XSC 0x70 /* Control 15 */ +#define SCALING_YSC 0x71 +#define SCALING_DCWCTR 0x72 +#define SCALING_PCLK_DIV 0x73 +#define SCALING_PCLK_DELAY 0xA2 + +#define REG_GAIN 0x00 /* Gain lower 8 bits (rest in vref) */ +#define REG_BLUE 0x01 /* blue gain */ +#define REG_RED 0x02 /* red gain */ +#define REG_VREF 0x03 /* Pieces of GAIN, VSTART, VSTOP */ +#define REG_COM1 0x04 /* Control 1 */ +#define COM1_CCIR656 0x40 /* CCIR656 enable */ +#define REG_BAVE 0x05 /* U/B Average level */ +#define REG_GbAVE 0x06 /* Y/Gb Average level */ +#define REG_AECHH 0x07 /* AEC MS 5 bits */ +#define REG_RAVE 0x08 /* V/R Average level */ +#define REG_COM2 0x09 /* Control 2 */ +#define COM2_SSLEEP 0x10 /* Soft sleep mode */ +#define REG_PID 0x0a /* Product ID MSB */ +#define REG_VER 0x0b /* Product ID LSB */ +#define REG_COM3 0x0c /* Control 3 */ +#define COM3_SWAP 0x40 /* Byte swap */ +#define COM3_SCALEEN 0x08 /* Enable scaling */ +#define COM3_DCWEN 0x04 /* Enable downsamp/crop/window */ +#define REG_COM4 0x0d /* Control 4 */ +#define REG_COM5 0x0e /* All "reserved" */ +#define REG_COM6 0x0f /* Control 6 */ +#define REG_AECH 0x10 /* More bits of AEC value */ +#define REG_CLKRC 0x11 /* Clocl control */ +#define CLK_EXT 0x40 /* Use external clock directly */ +#define CLK_SCALE 0x3f /* Mask for internal clock scale */ +#define REG_COM7 0x12 /* Control 7 */ +#define COM7_RESET 0x80 /* Register reset */ +#define COM7_FMT_MASK 0x38 +#define COM7_FMT_VGA 0x00 +#define COM7_FMT_CIF 0x20 /* CIF format */ +#define COM7_FMT_QVGA 0x10 /* QVGA format */ +#define COM7_FMT_QCIF 0x08 /* QCIF format */ +#define COM7_RGB 0x04 /* bits 0 and 2 - RGB format */ +#define COM7_YUV 0x00 /* YUV */ +#define COM7_BAYER 0x01 /* Bayer format */ +#define COM7_PBAYER 0x05 /* "Processed bayer" */ +#define REG_COM8 0x13 /* Control 8 */ +#define COM8_FASTAEC 0x80 /* Enable fast AGC/AEC */ +#define COM8_AECSTEP 0x40 /* Unlimited AEC step size */ +#define COM8_BFILT 0x20 /* Band filter enable */ +#define COM8_AGC 0x04 /* Auto gain enable */ +#define COM8_AWB 0x02 /* White balance enable */ +#define COM8_AEC 0x01 /* Auto exposure enable */ +#define REG_COM9 0x14 /* Control 9 - gain ceiling */ +#define REG_COM10 0x15 /* Control 10 */ +#define COM10_HSYNC 0x40 /* HSYNC instead of HREF */ +#define COM10_PCLK_HB 0x20 /* Suppress PCLK on horiz blank */ +#define COM10_HREF_REV 0x08 /* Reverse HREF */ +#define COM10_VS_LEAD 0x04 /* VSYNC on clock leading edge */ +#define COM10_VS_NEG 0x02 /* VSYNC negative */ +#define COM10_HS_NEG 0x01 /* HSYNC negative */ +#define REG_HSTART 0x17 /* Horiz start high bits */ +#define REG_HSTOP 0x18 /* Horiz stop high bits */ +#define REG_VSTART 0x19 /* Vert start high bits */ +#define REG_VSTOP 0x1a /* Vert stop high bits */ +#define REG_PSHFT 0x1b /* Pixel delay after HREF */ +#define REG_MIDH 0x1c /* Manuf. ID high */ +#define REG_MIDL 0x1d /* Manuf. ID low */ +#define REG_MVFP 0x1e /* Mirror / vflip */ +#define MVFP_MIRROR 0x20 /* Mirror image */ +#define MVFP_FLIP 0x10 /* Vertical flip */ +#define REG_AEW 0x24 /* AGC upper limit */ +#define REG_AEB 0x25 /* AGC lower limit */ +#define REG_VPT 0x26 /* AGC/AEC fast mode op region */ +#define REG_HSYST 0x30 /* HSYNC rising edge delay */ +#define REG_HSYEN 0x31 /* HSYNC falling edge delay */ +#define REG_HREF 0x32 /* HREF pieces */ +#define REG_TSLB 0x3a /* lots of stuff */ +#define TSLB_YLAST 0x04 /* UYVY or VYUY - see com13 */ +#define REG_COM11 0x3b /* Control 11 */ +#define COM11_NIGHT 0x80 /* NIght mode enable */ +#define COM11_NMFR 0x60 /* Two bit NM frame rate */ +#define COM11_HZAUTO 0x10 /* Auto detect 50/60 Hz */ +#define COM11_50HZ 0x08 /* Manual 50Hz select */ +#define COM11_EXP 0x02 +#define REG_COM12 0x3c /* Control 12 */ +#define COM12_HREF 0x80 /* HREF always */ +#define REG_COM13 0x3d /* Control 13 */ +#define COM13_GAMMA 0x80 /* Gamma enable */ +#define COM13_UVSAT 0x40 /* UV saturation auto adjustment */ +#define COM13_UVSWAP 0x01 /* V before U - w/TSLB */ +#define REG_COM14 0x3e /* Control 14 */ +#define COM14_DCWEN 0x10 /* DCW/PCLK-scale enable */ +#define REG_EDGE 0x3f /* Edge enhancement factor */ +#define REG_COM15 0x40 /* Control 15 */ +#define COM15_R10F0 0x00 /* Data range 10 to F0 */ +#define COM15_R01FE 0x80 /* 01 to FE */ +#define COM15_R00FF 0xc0 /* 00 to FF */ +#define COM15_RGB565 0x10 /* RGB565 output */ +#define COM15_RGB555 0x30 /* RGB555 output */ +#define REG_COM16 0x41 /* Control 16 */ +#define COM16_AWBGAIN 0x08 /* AWB gain enable */ +#define REG_COM17 0x42 /* Control 17 */ +#define COM17_AECWIN 0xc0 /* AEC window - must match COM4 */ +#define COM17_CBAR 0x08 /* DSP Color bar */ +#define REG_CMATRIX_BASE 0x4f +#define CMATRIX_LEN 6 +#define REG_CMATRIX_SIGN 0x58 +#define REG_BRIGHT 0x55 /* Brightness */ +#define REG_CONTRAS 0x56 /* Contrast control */ +#define REG_GFIX 0x69 /* Fix gain control */ +#define REG_REG76 0x76 /* OV's name */ +#define R76_BLKPCOR 0x80 /* Black pixel correction enable */ +#define R76_WHTPCOR 0x40 /* White pixel correction enable */ +#define REG_RGB444 0x8c /* RGB 444 control */ +#define R444_ENABLE 0x02 /* Turn on RGB444, overrides 5x5 */ +#define R444_RGBX 0x01 /* Empty nibble at end */ +#define REG_HAECC1 0x9f /* Hist AEC/AGC control 1 */ +#define REG_HAECC2 0xa0 /* Hist AEC/AGC control 2 */ +#define REG_BD50MAX 0xa5 /* 50hz banding step limit */ +#define REG_HAECC3 0xa6 /* Hist AEC/AGC control 3 */ +#define REG_HAECC4 0xa7 /* Hist AEC/AGC control 4 */ +#define REG_HAECC5 0xa8 /* Hist AEC/AGC control 5 */ +#define REG_HAECC6 0xa9 /* Hist AEC/AGC control 6 */ +#define REG_HAECC7 0xaa /* Hist AEC/AGC control 7 */ +#define REG_BD60MAX 0xab /* 60hz banding step limit */ + + +#define MTX1 0x4f /* Matrix Coefficient 1 */ +#define MTX2 0x50 /* Matrix Coefficient 2 */ +#define MTX3 0x51 /* Matrix Coefficient 3 */ +#define MTX4 0x52 /* Matrix Coefficient 4 */ +#define MTX5 0x53 /* Matrix Coefficient 5 */ +#define MTX6 0x54 /* Matrix Coefficient 6 */ +#define REG_CONTRAS 0x56 /* Contrast control */ +#define MTXS 0x58 /* Matrix Coefficient Sign */ +#define AWBC7 0x59 /* AWB Control 7 */ +#define AWBC8 0x5a /* AWB Control 8 */ +#define AWBC9 0x5b /* AWB Control 9 */ +#define AWBC10 0x5c /* AWB Control 10 */ +#define AWBC11 0x5d /* AWB Control 11 */ +#define AWBC12 0x5e /* AWB Control 12 */ +#define REG_GFIX 0x69 /* Fix gain control */ +#define GGAIN 0x6a /* G Channel AWB Gain */ +#define DBLV 0x6b +#define AWBCTR3 0x6c /* AWB Control 3 */ +#define AWBCTR2 0x6d /* AWB Control 2 */ +#define AWBCTR1 0x6e /* AWB Control 1 */ +#define AWBCTR0 0x6f /* AWB Control 0 */ \ No newline at end of file