主题中讨论的其他器件: SN65DSI86、 TEST2
我尝试使用 SN65DSI86EVM 在通过 DisplayPort 电缆连接到开发套件的 BenQ GW2480监视器上进行色条测试。 我曾尝试在这里引用 E2E 上的几篇文章、以及使用 SN65DSI86_PANEL_VIDEOREGISTER_CALC Excel 文档、该文档具有我从显示屏收集到的 EDID。
我正在使用 Raspberry Pi 5通过 以下脚本向 SN65DSI86发送 I2C 命令。 我还要附加我在连接到 GW2480的 Linux 计算机上使用 Read-EDID | Parse-EDID 获得的 EDID 数据。
# reset registers i2cset -y 1 0x2d 0x09 0x01 sleep 1 # select clock # 3-1: 100 - REFCLK at 27 Mhz #i2cset -y 1 0x2D 0x0A 0x06 echo "Get 0x0A" i2cget -y 1 0x2D 0x0A # dsi # 6-5: 01 - four DSI lanes (A) # 4-3: 00 - 4 lanes i2cset -y 1 0x2D 0x10 0x26 echo "Get 0x10" i2cget -y 1 0x2D 0x10 # DSIA Clock i2cset -y 1 0x2D 0x5C # select datarate (we need 3.24 Gbps to do 1920*1080@60 over 2 lanes) i2cset -y 1 0x2D 0x94 0x80 ### enable pll i2cset -y 1 0x2D 0x0D 0x01 sleep 1 echo "Get 0x0D" i2cget -y 1 0x2D 0x0D # check if pll is locked - MSB must be set. echo "Get 0x0A" i2cget -y 1 0x2D 0x0A # this returns 0x86 -> pll = locked. # enable assr on panel (native aux command) i2cset -y 1 0x2D 0x64 0x01 sleep 1 i2cset -y 1 0x2D 0x74 0x00 sleep 1 i2cset -y 1 0x2D 0x75 0x01 sleep 1 i2cset -y 1 0x2D 0x76 0x0A sleep 1 i2cset -y 1 0x2D 0x77 0x01 sleep 1 i2cset -y 1 0x2D 0x78 0x81 # enable enhanced framing & ASSR i2cset -y 1 0x2D 0x5A 0x05 # 2 lanes - disable spread spectrum i2cset -y 1 0x2D 0x93 0x20 ### start semi auto link i2cset -y 1 0x2D 0x96 0x0A sleep 1 # i2cset -y 2 0x2D 0x96 0x09 echo "Get 0x96 and 0xF0" i2cget -y 1 0x2D 0x96 i2cget -y 1 0x2D 0xF0 echo "Get 0xF1" i2cget -y 1 0x2D 0xF1 echo "Get 0xF2" i2cget -y 1 0x2D 0xF2 echo "Get 0xF3" i2cget -y 1 0x2D 0xF3 echo "Get 0xF4" i2cget -y 1 0x2D 0xF4 echo "Get 0xF5" i2cget -y 1 0x2D 0xF5 echo "Get 0xF6" i2cget -y 1 0x2D 0xF6 echo "Get 0xF7" i2cget -y 1 0x2D 0xF7 echo "Get 0xF8" i2cget -y 1 0x2D 0xF8 # this returns 0x01 -> link ok + switched to normal ### set resolution (calculated with excel sheet) # active line length i2cset -y 1 0x2D 0x20 0x08 i2cset -y 1 0x2D 0x21 0x70 # vertical active size i2cset -y 1 0x2D 0x24 0x05 i2cset -y 1 0x2D 0x25 0xA0 # horizontal pulse width i2cset -y 1 0x2D 0x2C 0x00 i2cset -y 1 0x2D 0x2D 0x20 # vertical pulse width i2cset -y 1 0x2D 0x30 0x00 i2cset -y 1 0x2D 0x31 0x0A # HBP i2cset -y 1 0x2D 0x34 0x50 # VBP i2cset -y 1 0x2D 0x36 0x1B # HFP i2cset -y 1 0x2D 0x38 0x30 # VFP i2cset -y 1 0x2D 0x3A 0x03 # DP color format - 24bpp i2cset -y 1 0x2D 0x5B 0x00 ### colorbar i2cset -y 1 0x2D 0x3C 0x12 echo "Get 0x3C" i2cget -y 1 0x2D 0x3C sleep 1 # Enable video stream - enable ASSR & enhanced framing i2cset -y 1 0x2D 0x5A 0x0C echo "Get 0x5A" i2cget -y 1 0x2D 0x5A
Section "Monitor" Identifier "BenQ GW2480" ModelName "BenQ GW2480" VendorName "BNQ" # Monitor Manufactured week 33 of 2023 # EDID version 1.4 # Digital Display DisplaySize 530 300 Gamma 2.20 Option "DPMS" "true" Horizsync 30-83 VertRefresh 50-76 # Maximum pixel clock is 170MHz #Not giving standard mode: 1920x1080, 60Hz #Not giving standard mode: 1680x1050, 60Hz #Not giving standard mode: 1600x900, 60Hz #Not giving standard mode: 1280x1024, 60Hz #Not giving standard mode: 1280x800, 60Hz #Not giving standard mode: 1280x720, 60Hz #Extension block found. Parsing... Modeline "Mode 16" 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync Modeline "Mode 0" 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync Modeline "Mode 1" 148.500 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync Modeline "Mode 2" 148.500 1920 2448 2492 2640 1080 1084 1089 1125 +hsync +vsync Modeline "Mode 3" 74.250 1280 1390 1420 1650 720 725 730 750 +hsync +vsync Modeline "Mode 4" 74.250 1280 1720 1760 1980 720 725 730 750 +hsync +vsync Modeline "Mode 5" 27.027 720 736 798 858 480 489 495 525 -hsync -vsync Modeline "Mode 6" 27.000 720 732 796 864 576 581 586 625 -hsync -vsync Modeline "Mode 7" 27.027 720 736 798 858 480 489 495 525 -hsync -vsync Modeline "Mode 8" 27.000 720 732 796 864 576 581 586 625 -hsync -vsync Modeline "Mode 9" 25.200 640 656 752 800 480 490 492 525 -hsync -vsync Modeline "Mode 10" 74.250 1920 2448 2492 2640 1080 1082 1089 1125 +hsync +vsync interlace Modeline "Mode 11" 27.027 1440 1478 1602 1716 480 484 487 525 -hsync -vsync interlace Modeline "Mode 12" 27.027 1440 1478 1602 1716 480 484 487 525 -hsync -vsync interlace Modeline "Mode 13" 27.000 1440 1464 1590 1728 576 578 581 625 -hsync -vsync interlace Modeline "Mode 14" 27.000 1440 1464 1590 1728 576 578 581 625 -hsync -vsync interlace Modeline "Mode 15" 74.250 1920 2008 2052 2200 1080 1082 1087 1125 +hsync +vsync interlace Modeline "Mode 17" 74.25 1920 2008 2052 2200 540 542 547 562 +hsync +vsync interlace Modeline "Mode 18" 74.25 1280 1390 1430 1650 720 725 730 750 +hsync +vsync Modeline "Mode 19" 27.00 720 736 798 858 480 489 495 525 -hsync -vsync Option "PreferredMode" "Mode 16" EndSection
00 ff ff ff ff ff ff 00 09 d1 e7 78 45 54 00 00 21 21 01 04 a5 35 1e 78 3a 05 65 a7 56 52 9c 27 0f 50 54 a5 6b 80 d1 c0 b3 00 a9 c0 81 80 81 00 81 c0 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c 45 00 0f 28 21 00 00 1e 00 00 00 ff 00 4b 38 50 30 31 36 31 35 30 31 51 0a 20 00 00 00 fd 00 32 4c 1e 53 11 01 0a 20 20 20 20 20 20 00 00 00 fc 00 42 65 6e 51 20 47 57 32 34 38 30 0a 20 01 5b 02 03 1c f1 4f 90 1f 04 13 03 12 02 11 01 14 06 07 15 16 05 23 09 07 07 83 01 00 00 02 3a 80 18 71 38 2d 40 58 2c 45 00 0f 28 21 00 00 1f 01 1d 80 18 71 1c 16 20 58 2c 25 00 0f 28 21 00 00 9f 01 1d 00 72 51 d0 1e 20 6e 28 55 00 0f 28 21 00 00 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 0f 28 21 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 8d