Lup Yuen Lee 李立源 @lupyuen@qoto.org

"RK3588 is 3 times faster than the Raspberry Pi 4, and 2 times faster than previous rockchip flagship, RK3399"

https://www.reddit.com/r/linuxhardware/comments/r60lcp/rk3588_is_3_times_faster_than_the_raspberry_pi_4/?utm_medium=android_app&utm_source=share

A look at Popcorn Computer's new Pocket P.C.

https://tuxphones.com/popcorn-computer-pocket-pc-linux-pda-first-look/

Build, flash and run #NuttX ... Our SPI Test Driver appears as "/dev/spitest0"! 🎉

https://github.com/lupyuen/incubator-nuttx/blob/newdriver/drivers/rf/spi_test_driver.c

Update the Makefile "Make.defs" ... So that #NuttX will build our SPI Test Driver

https://github.com/lupyuen/incubator-nuttx/blob/newdriver/drivers/rf/Make.defs#L33-L37

Here's what happens when we make a boo-boo and #NuttX won't start

https://gist.github.com/lupyuen/ccfd90125f9a180b4cfb459e8a57b323

Remember to enable "SPI0" and "SPI Character Driver" in #NuttX ... Or our SPI Test Driver won't start

https://github.com/lupyuen/incubator-nuttx/blob/newdriver/drivers/rf/spi_test_driver.c

Our SPI Test Driver for #NuttX appears in "make menuconfig"!

https://github.com/lupyuen/incubator-nuttx/blob/newdriver/drivers/rf/Kconfig#L22-L27

Add our SPI Test Driver to #NuttX Kconfig

https://github.com/lupyuen/incubator-nuttx/blob/newdriver/drivers/rf/Kconfig#L22-L27

At #NuttX Startup, register our SPI Test Driver as "/dev/spitest0"

https://github.com/lupyuen/incubator-nuttx/blob/newdriver/boards/risc-v/bl602/bl602evb/src/bl602_bringup.c#L599-L617

Do the same to create the Header File for our #NuttX Driver: spi_test_driver.h

https://github.com/lupyuen/incubator-nuttx/blob/newdriver/include/nuttx/rf/spi_test_driver.h

Here's a Crash Dump for #NuttX OS on #BL602

https://gist.github.com/lupyuen/ccfd90125f9a180b4cfb459e8a57b323

"#Pine64 Pinedio Gateway Image: Decentralized Communication (Radio/LoRa)"

https://youtu.be/bustSeT2QEg

In our SPI Test Driver: Change all "dat31r5sp" to "spi_test_driver" ... Remember to Preserve Case!

https://github.com/lupyuen/incubator-nuttx/commit/8fee69215163180b77dc9d5b9e7449ebe00ac1cc

We create a new #NuttX SPI Device Driver ... By copying "dat-31r5-sp.c" to "spi_test_driver.c"

https://github.com/lupyuen/incubator-nuttx/blob/newdriver/drivers/rf/spi_test_driver.c

Instead we copy an existing #NuttX SPI Device Driver to test the SPI Interface ... We pick the simplest smallest SPI Device Driver: dat-31r5-sp

https://docs.google.com/spreadsheets/d/1MDps5cPe7tIgCL1Cz98iVccJAUJq1lgctpKgg9OwztI/edit#gid=0

Ocarina of Time has been fully decompiled into C

https://arstechnica.com/gaming/2021/11/reverse-engineering-team-completes-its-ocarina-of-time-decompilation/

Voxel Source Code 🤔

https://github.com/skriegman/kinematically_replicating_organisms

Research Article: https://www.pnas.org/content/118/49/e2112672118