How do I connect cables to ov7620 Hardware

ov7620 is a CMOS camera device, is a color CMOS image acquisition integrated chip, providing a high-performance single small size package, the device resolution can reach 640X480, the transmission rate can reach 30 frames.

The OV7620 is a 1/3 "CMOS color/black and white image sensor. It supports continuous and interlace scanning, VGA and QVGA two image formats; The maximum pixel is 664×492, and the frame rate is 30fps. The data formats include YUV, YCrCb and RGB, which can meet the requirements of the general image acquisition system.

OV7620 Basic parameters

Size: 33x27x24 (mm)

Power supply: DC+5V±5%

Scanning mode: line by line/interlace scanning

Minimum illumination: 2.5luxatf1.4 (3000k)

Signal-to-noise ratio: 48dB

Max pixel: (H) 664x (V) 492; The default valid pixel is: (H) 640x (V) 480

Data output format:

YCrCb16bit/8bitselectable

60Hz16BitYCrCb4: 2:2-640×480

60Hz8BitYCrCb4: 2:2-640×480

RGBRawDataDigitalOutput16Bit/8Bitselectable

CCIR601, CCIR656, ZV port: Support 8/16 bit video data

SCCB interface: The maximum rate is 400kBit/s

YCrCB or YUV output format: Supports TV or monitor display

ov7620 Hardware structure

The OV7620 is a CMOS color/black and white image sensor. It supports continuous and interlace scanning, VGA and QVGA two image formats; The highest pixel is 664×492, the frame rate is 30fp8; The data formats include YUV, YCrCb and RGB, which can meet the requirements of the general image acquisition system.

OV7620 internal programmable function register Settings have power-on mode and SCCB programming mode. The system adopts SCCB programming mode, continuous scanning, 16-bit RGB data output. The block diagram of the system hardware structure is shown in Figure 1.

The ARM chip uses LPC2210 with ARM7TDMI kernel to control the function register of OV7620 through the GPIO of LPC2210 to simulate SCCB bus protocol. Three interrupt pins of LPC2210 are used to introduce OV7620 image output synchronization signals VSYNC, HSYNC and PCLK to synchronize image data output by interrupt. The 16-bit parallel data output from the YUV channel of the OV7620 is accessed via the LPC2210's high 16-bit data line.

The SST39VF160 and IS61LV25616AL are extended Flash and SRAM, used as program memory and data memory respectively.