What are the advantages of OV7620?

First, the OV7620 is level compatible with 3.3V and 5V. At present, the processor used by intelligent car users can be basically divided into XS128 and K60 and KL25 three controllers, and the working levels of these three controllers are 5V and 3.3V and 3.3V respectively. The OV7620 can fully adapt to both levels, and the XS128 and K60 and KL25 can be switched randomly without level matching. (It should be noted that when the OV7620 is connected to 5v and 3.3v, the output effect is different, it is recommended to use at 5v voltage, because it is difficult to use at 3.3v voltage, and the output hexadecimal data is small.)Second, the frame rate of the OV7620 is 60 frames per second. When beginners learn the camera, they mistakenly think that the faster the frame rate of the camera, the better, but it is not. Take the OV7620 for example, its PCLK (pixel interrupt) period is 73ns, PCLK at this frequency is easy to be captured by K60 IO, if the frame rate is faster camera, its PCLK cycle will be smaller, PCLK at this frequency is not easy to be captured by K60 IO. But the hawkeye camera is not, the fire brother's hawkeye camera theoretically advertised 150 frames per second, but he is not through the PCLK cycle reduction to obtain the effect, the brilliance of the hawkeye camera is that it after the hardware binarization, each PCLK interrupt output 8 pixels, instead of 1 pixel. I bought the hawk-eye camera. I'll try it out later.)

Third: the resolution of OV7620 is also very suitable, in the third article also mentioned that OV7620 is interlace scanning, collection of VSYN, its output resolution is 640*240. If you change to QVGA format, the default output resolution is 320*120, which is very suitable for collecting the track at this resolution, and the data capacity is limited without distorting the image. (The resolution of OV7620 can be modified by SCCB, and if you are interested in modifying it, you can check the register configuration of OV7620 and then modify it by SCCB.)

Only by mastering the timing of OV7620 can you use OV7620 flexibly.