julbouln / dvi_lvds Goto Github PK

Simple DVI to LVDS Verilog converter

Tested with Rapsberry Pi, minispartan6+ and LP089WS1-TLA2 LCD panel

Since there is only video signal, panel must be configured in Rasperry Pi config.txt, eg for LP089WS1 :

# force console size
framebuffer_width=1024
framebuffer_height=600
 
hdmi_force_hotplug=1
hdmi_cvt=1024 600 60 3 0 0 0
  
hdmi_group=2
hdmi_mode=87

# panel is 18-bits so dither from 24-bits
hvs_set_dither=0x211

References:
minispartan6+ : https://www.scarabhardware.com/minispartan6/
LP089WS1 datasheet : http://static1.1.sqspcdn.com/static/f/489821/11953269/1386278097933/LP089WS1-TLA1.pdf
LVDS encoder : Verilog implementation of 7-to-1 LVDS Serializer https://github.com/racerxdl/LVDS-7-to-1-Serializer
DVI / HDMI decoder : Xilinx XAPP460 http://www.xilinx.com/support/documentation/application_notes/xapp460.pdf
10" 1024x600 panel raspberry pi config : Adafruit Pixel Qi 10" https://learn.adafruit.com/hdmi-uberguide/1303-pixel-qi-10-display-with-controller-1024x600
18 bits dithering raspberry pi config : https://www.raspberrypi.org/forums/viewtopic.php?f=41&t=45290