Hello all, I am working on a project related to image processing and I want to capture the photo using a USB webCAM. Can anyone please tell me How to interface Logitech webcam through USB port of any FPGA board(i.e. Zybo, Zedboard, Basys3)?
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Is this your homework? You need to use the driver to acess the webcam. Use embedded linux on the ZYNQ platform. I worked with xillybus once for a project at university, it worked for us. You need a linux driver for the webcam and if you need it in the programmable logic xillybus helps you to stream it there....
Lakshita J. wrote: > webcam through USB port of any FPGA board(i.e. ... Basys3)? Read, how the both USB connectors J2 and J4 of the Basys3 board are connected to the FPGA. You will find out, that you cannot implement a USB host to get data from the connectors to the FPGA. See there: https://reference.digilentinc.com/_media/reference/programmable-logic/basys-3/basys3_rm.pdf > Zybo, Zedboard, Do the same here. Zybo: the USB Micro AB connector J9 offers USB2.0 OTG functionality. https://reference.digilentinc.com/reference/programmable-logic/zybo/reference-manual Zedboard: see Chapter 2.3.1 there the manual http://www.zedboard.org/sites/default/files/documentations/ZedBoard_HW_UG_v2_2.pdf For connecting a USB device to a FPGA being the host, you 1. must implement the USB host hardware connection and 2. you must implement the host driver to connect to the USB device and retrieve data from the connected USB device. None of those both tasks are for beginners. So use a board able to run a linux OS and its drivers to connect to the webcam. Then capture the picture to RAM and then start your own image processing. This alone will be demanding enough.
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Edited by Moderator
Thank u all for the valuable information. Can you provide any useful links related to this topic of using USB Webcam?
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Edited by User
Most USB webcams implement the standard "USB video class" therefor you should follow the official documentation for this devices: https://www.usb.org/document-library/video-class-v15-document-set And the USB standard as the base: https://www.usb.org/document-library/usb-32-specification-released-september-22-2017-and-ecns As said before, we would suggest you to use a simpler interface to connect a camera to an FPGA. USB is complex from a developers perspective.
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