Lup Yuen Lee 李立源 @lupyuen@qoto.org

"Hell Is Other REPLs ... Being Mutable and Avoiding Bad Faith Programming" (Lisp / Rust / Haskell)

https://hyperthings.garden/posts/2021-06-20/hell-is-other-repls.html

"Bad C programming tricks"

https://www.reddit.com/r/C_Programming/comments/pe3bkc/what_are_some_bad_c_programming_tricks/?utm_medium=android_app&utm_source=share

"Is #PineTime CE certified for import into the EU?"

https://www.reddit.com/r/PINE64official/comments/pdr35y/pinetime_ce_certified/?utm_medium=android_app&utm_source=share

GPIO 8 is your friend ... For flashing #PineDio Stack #BL604

https://lupyuen.github.io/articles/pinedio#flash-firmware-to-bl604

"The Extreme 996 Work Culture in China"

https://youtu.be/l8wWoQ3_F00

What's it like to create firmware for the brand new #PineDio Stack BL604 #RISCV Board @PINE64 ? Read on and find out!

https://lupyuen.github.io/articles/pinedio

Discussion here: https://www.reddit.com/r/programming/comments/pdjnfr/software_development_topics_ive_changed_my_mind/?utm_medium=android_app&utm_source=share

"Software Development topics I've changed my mind on after 6 years in the industry"

https://chriskiehl.com/article/thoughts-after-6-years

A "Serial Monitor"? 🤔

https://www.reddit.com/r/pcmasterrace/comments/pdpz57/is_this_a_port_to_connect_a_monitor_and_if_so/?utm_medium=android_app&utm_source=share

Yep @JF and I have plenty to test on #PineDio Stack #BL604 @PINE64 ... If you're keen to help please let us know! 🙏

https://lupyuen.github.io/articles/pinedio?18#seeking-volunteers

Maybe our #ST7789 Display isn't wired for 3-Wire (9-Bit) Interface? 🤔

https://lupyuen.github.io/articles/pinedio?17#problem-with-st7789

We ported moononournation's awesome 9-Bit-Banging Arduino GFX Library to #BL604 ... But something seems broken in our #ST7789 Display 🤔

https://lupyuen.github.io/articles/pinedio?16#arduino-gfx-ported-to-bl604

Nope nothing appears on #PineDio Stack's #ST7789 Display 😭

https://lupyuen.github.io/articles/pinedio?15#does-it-work

Testing the 9-Bit Packing ... With Linux and a spreadsheet

https://lupyuen.github.io/articles/pinedio?14#test-the-9-bit-packing

How we pack 9-Bit Data for 8-Bit SPI

https://lupyuen.github.io/articles/pinedio?13#packing-9-bit-data

Sending 9-Bit Data to #ST7789 ... Over 8-Bit SPI? 🤔

https://lupyuen.github.io/articles/pinedio?12#9-bit-spi-for-st7789

#PineDio Stack uses the 3-Wire Interface for #ST7789 ... Instead of the familiar 4-Wire Interface

https://lupyuen.github.io/articles/pinedio?11#st7789-display

#BL604 SPI Pins are Swapped! 🙄 Here's the workaround for #PineDio Stack

https://lupyuen.github.io/articles/pinedio?10#spi-pins-are-swapped

Always have a Logic Analyser ready ... When testing Prototype Hardware! 👍

https://lupyuen.github.io/articles/pinedio?9#logic-analyser

SPI with DMA on #PineDio Stack #BL604

https://lupyuen.github.io/articles/pinedio?8#transfer-spi-data