Lup Yuen Lee 李立源 @lupyuen@qoto.org

"the tragedy of gethostbyname" (DNS)

https://ariadne.space/2022/03/27/the-tragedy-of-gethostbyname/

Honda Civics vulnerable to remote unlock, start hack

https://www.theregister.com/2022/03/25/honda_civic_hack/

#NuttX wraps the ST7789 Display Driver as an LCD Device "/dev/lcd0" ... Which will be used by #LVGL Graphics Library

https://github.com/lupyuen/st7789-nuttx#configure-nuttx

We'll use the ST7789 Display Driver that comes with Apache #NuttX RTOS ... Batteries all included! 🔋

https://github.com/lupyuen/st7789-nuttx#configure-nuttx

#RustLang implementation of Galileo OSNMA (#RISCV)

https://destevez.net/2022/03/a-rust-implementation-of-galileo-osnma/

#RISCV #BL602 with ST7789 Display and #LVGL Graphics ... Let's make it work on Apache #NuttX RTOS!

https://github.com/lupyuen/st7789-nuttx

And that's how we flip the ST7789 Data / Command Pin ... Inside the SPI Driver for #BL602 #NuttX!

https://github.com/lupyuen/incubator-nuttx/pull/44

Tested the ST7789 Data / Command Pin with a Logic Analyser ... Yep it works on #BL602 #NuttX! 🎉

https://github.com/lupyuen/incubator-nuttx/pull/44

Spresenseで #NuttX のpthreadsを使用しマルチスレッドを学ぶ #4　〜条件変数で【タイムアウト付き】条件待ちする〜

https://zenn.dev/k_abe/articles/d0b34d410535f6

#Linux on Mobile Weekly Update

https://linmob.net/

Capyloon's web-based OS is now available for mainline #Linux phones (PinePhone Pro and Librem 5)

https://liliputing.com/2022/03/capyloons-web-based-os-is-now-available-for-mainline-linux-phones-pinephone-pro-and-librem-5.html

After every ST7789 SPI Transfer on #BL602 #NuttX, we revert MISO from GPIO Pin back to SPI Pin ... In case other drivers need MISO

https://github.com/lupyuen/incubator-nuttx/blob/st7789/arch/risc-v/src/bl602/bl602_spi.c#L414-L454

To flip the ST7789 Data / Command Pin on #BL602 #NuttX: We reconfigure SPI MISO as a GPIO Pin ... On the fly!

https://github.com/lupyuen/incubator-nuttx/blob/st7789/arch/risc-v/src/bl602/bl602_spi.c#L678-L731

"Chinese Is A Rich Language" (Singapore)

https://youtu.be/rbe308rWbuQ

SPI Driver for #ESP32 #NuttX flips the ST7789 Data / Command Pin as though it was GPIO ... But actually the pin is designated as SPI MISO ... Let's do the same for BL602

https://github.com/apache/incubator-nuttx/blob/master/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_board_spi.c#L64-L84

Making strange changes to #BL602 #NuttX SPI Driver ... Hope this works for ST7789 Display 🙏

https://github.com/lupyuen/incubator-nuttx/blob/st7789/arch/risc-v/src/bl602/bl602_spi.c#L678-L729

ST7789 Display with PineCone #BL602 @PINE64 on Apache #NuttX RTOS ... Coming up next!

"It’s hard to be a moral person. Technology is making it harder" (2021)

https://www.vox.com/the-highlight/22585287/technology-smartphones-gmail-attention-morality