Igor Levkov
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levkov_ov7670
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ov7670
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Edoardo De Marchi
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ov7670.h
00001 // 00002 // OV7670 library 00003 // 00004 00005 #pragma once 00006 #include "mbed.h" 00007 #include "ov7670reg.h" 00008 00009 #define OV7670_WRITE (0x42) 00010 #define OV7670_READ (0x43) 00011 #define OV7670_WRITEWAIT (20) 00012 #define OV7670_NOACK (0) 00013 #define OV7670_REGMAX (201) 00014 #define OV7670_I2CFREQ (100000) 00015 00016 00017 class OV7670 00018 { 00019 public: 00020 00021 OV7670( 00022 PinName sda, // Camera I2C port 00023 PinName scl, // Camera I2C port 00024 PinName vs, // VSYNC 00025 PinName hr, // HREF 00026 PinName we, // WEN 00027 00028 //PortName port, // 8bit bus port 00029 //int mask, // 0b0000_0M65_4000_0321_L000_0000_0000_0000 = 0x07878000 00030 PinName d7, // D7 00031 PinName d6, // D6 00032 PinName d5, // D5 00033 PinName d4, // D4 00034 PinName d3, // D3 00035 PinName d2, // D2 00036 PinName d1, // D1 00037 PinName d0, // D0 00038 00039 PinName rt, // /RRST 00040 PinName o, // /OE 00041 PinName rc // RCLK 00042 ); 00043 00044 /*OV7670( 00045 PinName sda, // Camera I2C port 00046 PinName scl, // Camera I2C port 00047 PinName vs, // VSYNC 00048 PinName hr, // HREF 00049 PinName we, // WEN 00050 00051 PortName port, // 8bit bus port 00052 int mask, // 0b0000_0M65_4000_0321_L000_0000_0000_0000 = 0x07878000 00053 00054 PinName rt, // /RRST 00055 PinName o, // /OE 00056 PinName rc // RCLK 00057 ); 00058 */ 00059 ~OV7670(); 00060 00061 void CaptureNext(void); // capture request 00062 bool CaptureDone(void); // capture done? (with clear) 00063 void WriteReg(int addr,int data); // write to camera 00064 int ReadReg(int addr); // read from camera 00065 void Reset(void); // reset reg camera 00066 int Init(char c, int n); // init reg 00067 void VsyncHandler(void); // vsync handler 00068 void HrefHandler(void); // href handler 00069 int ReadOnebyte(void); // Data Read 00070 void ReadStart(void); // Data Start 00071 void ReadStop(void); // Data Stop 00072 00073 00074 private: 00075 I2C _i2c; 00076 InterruptIn vsync,href; 00077 00078 DigitalOut wen; 00079 //PortIn data; 00080 BusIn data; 00081 DigitalOut rrst,oe,rclk; 00082 volatile int LineCounter; 00083 volatile int LastLines; 00084 volatile bool CaptureReq; 00085 volatile bool Busy; 00086 volatile bool Done; 00087 };
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