LVDS On An FPGA Could Make It Possible To Reuse Laptops LCDs And The Like

您所在的位置:网站首页 fpga lvds LVDS On An FPGA Could Make It Possible To Reuse Laptops LCDs And The Like

LVDS On An FPGA Could Make It Possible To Reuse Laptops LCDs And The Like

2023-07-16 21:02| 来源: 网络整理| 查看: 265

Dear Hackaday readers. I’m Thomas Jespersen the designer and developer of this board. Thank you for all the comments which I have been reading thourougly to get a better understanding on the market and what you hackers requirements are.

Let me first say that I had never heard about the MIPI-DSI, though a bit about DSI thru the Raspberry Pi. But now I have also noticed the DCS protocol together with larger screen displays that already include a built in framebuffer, such as the one used in the Nokia N900 phone. I might have to look at these displays some more later on.

I know you can get VGA/DVI to LVDS converters board fairly cheap, but the main problem would still be around: driving/controlling the full resolution with a simple microcontroller. The Gameduino and Papillo boards have already been around for a while, and these are well designed boards with great features. Especially the Gameduino which can generate a VGA signal and be controlled with an Arduino is a perfect invention – but our main problem persist: we are not able to control all the pixels individually – we are still stuck to a tile map.

Currently we are using a 66MHz Pixel Clock so for a display with a resolution of 1024×768 pixels this gives us a refresh rate of 60Hz – which is the current scenario. So without having done all the math for horizontal and vertical count I would guess that a refresh rate of at least 45Hz would be achivable with the same setup but a 1280×800 pixel display. FYI Scatterbrained we are using a 231MHz DCM generated clock frequency for the serialization.

I understand that more and more of you would like to see a tile based implementation within the FPGA on our board, similar to what the Gameduino is capable of. We will for sure have this in mind and might spend some time developing a tile based feature where tilesets could be saved within the rest of the available SRAM.

Another feature mentioned by Chris would be a Serial option, or at least an option that requires less pins. In this case the pixel data transfer would only become much slower, but if the tile based feature was implemented this would definitely become more usefull as it could save you a lot of pins.

Once again thank you to all for your valuable feedback.

Best Regards Thomas Jespersen



【本文地址】


今日新闻


推荐新闻


CopyRight 2018-2019 办公设备维修网 版权所有 豫ICP备15022753号-3