Lup Yuen Lee 李立源 @lupyuen@qoto.org

Creating our own Display Driver is best way to understand #PinePhone's internals

Article: https://lupyuen.github.io/articles/dsi3?18#why-zig

#PinePhone on #NuttX shows Garbled Console Output ... Here's the fix

Source: https://github.com/lupyuen/pinephone-nuttx#garbled-console-output

We're Reverse-Engineering #PinePhone into #ZigLang ... Here's why

Article: https://lupyuen.github.io/articles/dsi3?18#why-zig

#PinePhone's Power Mgmt IC ... Now deciphered 👍

Article: https://lupyuen.github.io/articles/de?88#appendix-power-management-integrated-circuit

Switching from Nescafe to Indocafe

#PinePhone's Display Backlight is controlled by GPIO and PWM

Article: https://lupyuen.github.io/articles/dsi3?15#display-backlight

Sandwich Experiment ... Egg + Onion + Potato Salad

#PinePhone's A64 Display Engine streams the pixels from RAM Framebuffers ... To the Timing Controller TCON0

Article: https://lupyuen.github.io/articles/dsi3?12#display-engine

#PinePhone's Timing Controller TCON0 streams pixels to the MIPI Display Serial Interface

Article: https://lupyuen.github.io/articles/dsi3?11#timing-controller-tcon0

Up next in Apache #NuttX Kernel: #PinePhone Drivers for Timing Controller, Display Engine, PMIC

Article: https://lupyuen.github.io/articles/dsi3?10#upcoming-nuttx-drivers

#NuttX MIPI DSI Driver is now complete! Let's finish the #PinePhone Display Driver: Timing Controller, Display Engine, PMIC

Article: https://lupyuen.github.io/articles/dsi3?10#upcoming-nuttx-drivers

Testing our #NuttX MIPI DSI Driver on our Local Computer ... Before testing on #PinePhone

Article: https://lupyuen.github.io/articles/dsi3?9#local-testing

Unit Testing for our #NuttX MIPI DSI Driver

Article: https://lupyuen.github.io/articles/dsi3?8#unit-testing

Integration Testing with #ZigLang and C Drivers on Apache #NuttX RTOS

Article: https://lupyuen.github.io/articles/dsi3?7#test-mipi-dsi-driver

Just learnt Git Rebase in GitHub Desktop 👍

Source: https://lupyuen.github.io/articles/pr?88#submit-the-pull-request

Converting our #ZigLang Driver to C ... Line by line, the manual way

Article: https://lupyuen.github.io/articles/dsi3?6#convert-zig-to-c

Our #PinePhone Display Driver was Reverse-Engineered into #ZigLang ... Then converted to C for #NuttX

Article: https://lupyuen.github.io/articles/dsi3?5#enable-mipi-dsi-and-d-phy

How we enable MIPI DSI and D-PHY on #PinePhone Allwinner A64

Article: https://lupyuen.github.io/articles/dsi3?5#enable-mipi-dsi-and-d-phy

Sending a MIPI DSI Packet to #PinePhone's LCD Controller on Apache #NuttX RTOS

Article: https://lupyuen.github.io/articles/dsi3?4#send-mipi-dsi-packet

What happens in our Apache #NuttX Kernel Driver for #PinePhone's LCD Display

Article: https://lupyuen.github.io/articles/dsi3?3#complete-display-driver-for-pinephone