FPGA image acquisition display help

jokeboy999

FPGA image acquisition display help [Copy link]

Has anyone used FPGA to capture an image, store it in DDR, and then read it out continuously to display a still image on LCD? I have stored one now, but when I display it, the image always moves from the lower left corner to the upper right corner.

I have changed many places, but the problem still cannot be solved, and the image needs to be burned twice to be clear. What is the reason? Please help

jokeboy999

I'm going to give it a thumbs up. I believe there must be experts out there who are just too lazy to answer me. I don't know how to ask a question, and there will be experts who will answer it. . .

orta

Wow~~DDR =.= I am learning to use SDRAM. Is it easy to make a DDR driver? It seems very troublesome.

daxiadian

It should be that the address is not written correctly, that is, the picture displayed on the LCD and the data in the DDR do not correspond one to one, causing the scrolling phenomenon. I have used TFT screens before and encountered similar problems. You can communicate with me. My email address is 33240178@QQ.COM

jokeboy999

I added you on QQ, but you didn't respond. My current problem is that after the address is modified, the screen can be stable, but it is misaligned. For example, there is a line on the display screen. The left side of the line is the right part of the image, and the right side of the line is the left part of the image. I have changed it for a few days, but it still can't be solved. Please advise me

老周123

Hello, I have the same problem now. The icon can be seen clearly, but it keeps scrolling. However, I use FIFO to cache. Can we communicate with each other? QQ: 1251434055 Thank you

eeleader

If the problem is solved, I will wait for your solution.