Lup Yuen Lee 李立源 @lupyuen@qoto.org

Missing <math.h> in #NuttX Build ... Why does this happen? 🤔

Source: https://lupyuen.codeberg.page/articles/release.html#appendix-missing-mathh

Power up the Star64 #JH7110 Display Subsystem ... With a #UBoot Script

Article: https://lupyuen.codeberg.page/articles/display3.html#u-boot-script-to-power-up-the-display-subsystem

Apache #NuttX RTOS is now on the excellent OSDev Wiki 🎉

Source: https://wiki.osdev.org/RISC-V_Bare_Bones#See_also

Enable the Clocks and Deassert the Resets for Star64 #JH7110 Display Subsystem

Article: https://lupyuen.codeberg.page/articles/display3.html#clocks-and-resets-for-display-subsystem

😂 Mutated Fingers in Y3K

Source: https://www.coca-cola.com/us/en/offerings/creations/y3000-cam

Here are the Clocks and Resets for Star64 #JH7110 Display Subsystem

Article: https://lupyuen.codeberg.page/articles/display3.html#clocks-and-resets-for-display-subsystem

#RISCV StarFive #JH7110 VisionFive 2 SBC ... Boots OK with Apache #NuttX Real-Time Operating System! 🎉

Source: https://github.com/lupyuen/lupyuen.github.io/issues/19#issuecomment-1715054007

Powering up the Star64 #JH7110 Power Mgmt Unit with "Software Encouragement"

Article: https://lupyuen.codeberg.page/articles/display3.html#jh7110-power-management-unit

Star64 #JH7110 Display Controller is powered by the Internal Power Mgmt Unit

Article: https://lupyuen.codeberg.page/articles/display3.html#jh7110-power-management-unit

Creating a Bootable microSD for Apache #NuttX RTOS on #JH7110 VisionFive2 ... Hope this works 😬

Source: https://gist.github.com/lupyuen/aae995d942d5ec3ffa6629667bcc3ae6

Dumping the Star64 #JH7110 Display Controller with #UBoot Bootloader ... Nothing appears because it's not powered on!

Article: https://lupyuen.codeberg.page/articles/display3.html#dump-the-jh7110-display-controller

Writing to the Star64 #JH7110 UART Registers ... With #UBoot Bootloader

Article: https://lupyuen.codeberg.page/articles/display3.html#dump-and-write-memory-with-u-boot-bootloader

Someday Apache #NuttX RTOS might support all these gadgets 🤔

Source: https://docs.google.com/presentation/d/15qIBW4hoCwGCX5KGwjjV2Zo_G1M4At64UqztYBf8j08/edit#slide=id.g27afac8091f_0_37

#UBoot Commands "md" and "mw" for Dumping and Writing Memory

Article: https://lupyuen.codeberg.page/articles/display3.html#dump-and-write-memory-with-u-boot-bootloader

Let's power up the Display Controller inside #RISCV Star64 #JH7110 SBC @PINE64 ... By running simple commands in the #UBoot Bootloader

Article: https://lupyuen.codeberg.page/articles/display3

Here are the Clocks and Resets for the Star64 #JH7110 Display Controller

Article: https://lupyuen.codeberg.page/articles/display2.html#appendix-jh7110-display-clock-and-reset

#PinePhonePro with Apache #NuttX RTOS ... Making great progress 👍

Source: https://github.com/apache/nuttx/pull/10529

Building our HDMI Driver for Star64 #JH7110 on Apache #NuttX RTOS ... Needs more research 🤔

Article: https://lupyuen.codeberg.page/articles/display2.html#unsolved-mysteries

How Star64 #JH7110 updates the Display Plane

Article: https://lupyuen.codeberg.page/articles/display2.html#update-display-plane

How the Star64 #JH7110 Display Driver commits a Display Pipeline

Article: https://lupyuen.codeberg.page/articles/display2.html#commit-display-pipeline