This project is powered by RggBer which is the FPGA based development kit for embedded vision. Visit RggBer hardware specification project to have more information.
RGGBer campaign is now live on https://www.crowdsupply.com/jie-zou/rggber-dev-kit
System level diagram of this digital camera
The image stream path is shown in below board level
diagram in details. As the gray dash line, FPGA receives Bayer pixel data from
iXCIS which connect to CIS module then stores it in DDR2 frame buffer. The
orange dash line indicates that FPGA takes the pixels from DDR2 and processes
them with de-mosaic then transmits the RGB888 data to HDMI TX chip.
OV5640 sensor chip provides built-in AWB, AEC, AGC and
AF. All these are controlled and configured by I2C port of MCU. FPGA is
dedicated to timing critical task.
Let’s have a look at the image quality.
It is also a smooth video stream.
Auto focus to barcode
Auto focus to characters
The speed of AF is about 3 seconds.