Lup Yuen Lee 李立源 @lupyuen@qoto.org

Finally #ZigLang runs OK on #BL602 with Apache #NuttX RTOS! 🎉

https://lupyuen.github.io/articles/zig?11#zig-runs-ok

ELF Header Surgery for #ZigLang ... So that it links with Apache #NuttX RTOS for #BL602

https://lupyuen.github.io/articles/zig?10#patch-elf-header

#ZigLang fails to link with Apache #NuttX RTOS for #BL602 ... Here's why

https://lupyuen.github.io/articles/zig?9#floating-point-abi

#ZigLang Targets for #RISCV

https://lupyuen.github.io/articles/zig?8#zig-target

Here's how we compile our #ZigLang App for #RISCV #BL602

https://lupyuen.github.io/articles/zig?7#compile-zig-app

Apache #NuttX Build fails with our #ZigLang App ... But no worries! Let's compile it ourselves

https://lupyuen.github.io/articles/zig?6#build-fails-on-nuttx

We enable the #ZigLang App on Apache #NuttX RTOS with menuconfig

https://lupyuen.github.io/articles/zig?5#enable-zig-app

How we call printf() from #ZigLang

https://lupyuen.github.io/articles/zig?4#main-function

Here's how we import C functions into #ZigLang

https://lupyuen.github.io/articles/zig?3#import-standard-library

Apache #NuttX RTOS comes with a simple #ZigLang App ... Let's run this on #BL602

https://lupyuen.github.io/articles/zig?2#zig-app

My second Takedown Notice from CEVA (WiFi IP) 🤔

https://github.com/lupyuen/AliOS-Things/tree/master/platform/mcu/bk7231u

Running #ZigLang on #RISCV #BL602 with Apache #NuttX RTOS ... All shall be explained in this article

https://lupyuen.github.io/articles/zig?1

Troubleshooting #LoRaWAN on #PineDio USB Dongle 🤔

https://codeberg.org/JF002/loramac-node/pulls/1

#LoRaWAN has a Golden Window of Exactly One Second to receive the Join Accept Response ... If we miss the window, things will go very badly 😬

https://gist.github.com/lupyuen/1d96b24c6bf5164cba652d903eedb9d1

#LoRaWAN Join Accept Response is returned in 5 to 6 seconds from Join Request ... Jotting a note to remind myself 🙄

https://gist.github.com/lupyuen/1d96b24c6bf5164cba652d903eedb9d1

Beachy Friday ☀️

After patching the Floating-Point ABI, our #ZigLang App runs on #BL602 with Apache #NuttX RTOS! 🎉

https://github.com/lupyuen/zig-bl602-nuttx#zig-runs-ok

We do ELF Header Surgery on the #ZigLang Output for #BL602 ... And change "Software Floating-Point ABI" to "Hardware Floating-Point ABI"

https://github.com/lupyuen/zig-bl602-nuttx#patch-elf-header

But #ZigLang Compiler produces an Object File with Software Floating-Point ABI ... This won't link with #BL602 #NuttX on Hardware Floating-Point!

https://github.com/lupyuen/zig-bl602-nuttx#floating-point-abi

Apache #NuttX RTOS was compiled for #BL602 with Hardware Floating-Point ABI: "gcc -march=rv32imafc -mabi=ilp32f"

https://github.com/lupyuen/zig-bl602-nuttx#floating-point-abi