Hello Im having problems, trying to interface OV7670 with my de0 nano using this project: http://hamsterworks.co.nz/mediawiki/index.php/OV7670_camera After few days of trying im getting images, VIDEO: https://youtu.be/_uttMrgzheA Problems: - i have to reapply ov7670 registers setup after uploading it to device (it should be also done after startup); - colours are terrible, almost cant see anything; - resolution should be like 640x480 but after a while after upload solid colors appear at the bottom of the screen (can see it in video), moreover when im moving camera around some of the bottom pixels are changing too =( Have anyone been doing this project on his fpga? (i have included my quartus files as attachment) - any ideas what might be the cause of problems? My RGB DAC is 5bits per color so im using only the oldest bits for colors (i have RGB 332, so im using 3 oldest bits of red, 3 oldest of green and 2 oldest of blue, rest are set to '0' (LSB's). Also in attachments ive added a screenshoot of TOP of the project (made it in brd because wanted it to be more clear in reading than just only vhdl files).
Ok little improvement comparing to previous version, now borders are looking better than before and images are much more stable (can even read letters from calculator :D), now colors are the issue and registers setup, my predictions are that something in controller is not working properly. https://youtu.be/i4O3kaw0PjY edit ahh and what ive done to improve image: ive moved ground ov7670 pin from GPIO pin that was set to GND by gnd symbol in quartus to real gnd pin next to 3V3 power supply pin O.o (anyone know why this helped so much?)
: Edited by User