Lup Yuen Lee 李立源 @lupyuen@social.cleverlibre.org

#PinePhone's ST7703 LCD Controller only works in MIPI DSI Video Mode (not Command Mode)

https://lupyuen.github.io/articles/dsi?9#video-mode-only-for-mipi-dsi

#PinePhone controls its LCD Display by sending DCS Commands to ST7703

https://lupyuen.github.io/articles/dsi?8#display-command-set-for-mipi-dsi

#PinePhone must send these (mysterious) commands to ST7703 LCD Controller at startup

https://lupyuen.github.io/articles/dsi?7#initialise-lcd-controller

Inside #PinePhone's Display is Sitronix ST7703 LCD Controller ... Yep the super-sized sibling of PineTime's LCD Controller!

https://lupyuen.github.io/articles/dsi?6#sitronix-st7703-lcd-controller

BL808 has a 64-bit #RISCV CPU for "security monitoring, intelligent audio processing, and intelligent video processing"

https://github.com/sipeed/sipeed2022_autumn_competition/blob/main/assets/BL808_RM_en.pdf

#PinePhone is connected to the Xingbangda XBD599 LCD Panel ... Says the Linux Device Tree

https://lupyuen.github.io/articles/dsi?5#xingbangda-xbd599-lcd-panel

#PinePhone's MIPI Display Serial Interface has 4 Data Lanes ... And uses Differential Signalling (similar to HDMI and USB)

https://lupyuen.github.io/articles/dsi?4#connector-for-mipi-dsi

#PinePhone Schematic says that the Allwinner A64 SoC is connected to the LCD Display via a MIPI Digital Serial Interface (DSI)

https://lupyuen.github.io/articles/dsi?3#pinephone-schematic

#RISCV BL808 supports MIPI Display Serial Interface ... Cool!

https://github.com/sipeed/sipeed2022_autumn_competition/blob/main/assets/BL808_DS_zh.pdf

Down the Rabbit Hole with #PinePhone's MIPI DSI Driver 🤔

https://gist.github.com/lupyuen/43204d20c35ecb23dfbff12f2f570565

#PinePhone's LCD Display works like a super-sized PineTime Display ... We'll find out why

https://lupyuen.github.io/articles/dsi?2#from-pinetime-to-pinephone

#PinePhone’s mysterious LCD Display and its MIPI Digital Serial Interface ... All secrets shall be revealed in this article

https://lupyuen.github.io/articles/dsi?1

#PinePhone has a Goodix GT917S Touch Panel that talks on I2C ... Here's the Linux Driver

https://lupyuen.github.io/articles/pio?19#touch-panel

#PinePhone's mysterious LCD Display and its MIPI Digital Serial Interface ... All secrets shall be revealed soon!

https://github.com/lupyuen/pinephone-nuttx

Day 2 of Apache #NuttX RTOS Online Workshop is now LIVE! 🎉

Live Stream on YouTube: https://nuttx.events/

Apache #NuttX RTOS Online Workshop is now LIVE! 🎉

Live Stream on YouTube: https://nuttx.events/

Apache #NuttX RTOS Online Workshop starts 11:00 GMT on Saturday and Sunday ... See you real soon!

Live Stream on YouTube: https://www.youtube.com/c/NuttXChannel

List of Presentations: https://nuttx.events/2022/09/19/list-of-presentation-of-the-nuttx-international-2022/

#PinePhone's Registers for MIPI Display (Digital Serial Interface) ... Are in the Allwinner A31 Docs, not A64! So odd 🤔

https://lupyuen.github.io/articles/pio?88#mipi-dsi-interface

Porting #NuttX and #LoRaWAN to #RISCV PineDio Stack BL604 @PINE64 ... Join us this weekend at Apache NuttX RTOS Online Workshop, Sep 24-25

Free Registration: https://nuttx.events/

MIPI D-PHY is the Physical Layer for the MIPI Digital Serial Interface used by #PinePhone's LCD Display

https://lupyuen.github.io/articles/pio?17#display-phy