Lup Yuen Lee 李立源

Will run on ... With Apache RTOS? Let's find out!

github.com/lupyuen/zig-bl602-n

1
Lup Yuen Lee 李立源

Apache RTOS is bundled with a simple App ... Let's run this on

github.com/lupyuen/zig-bl602-n

1
Lup Yuen Lee 李立源

We enable the Demo App via "menuconfig" on Apache RTOS

github.com/lupyuen/zig-bl602-n

1
Lup Yuen Lee 李立源

Apache RTOS fails to build our App ... But no worries! Let's compile it ourselves

github.com/lupyuen/zig-bl602-n

1
Lup Yuen Lee 李立源

Here's how we compile our App for

github.com/lupyuen/zig-bl602-n

1+
Lup Yuen Lee 李立源

Target CPU for is "sifive_e76" ... Because it matches RV32IMACF

github.com/lupyuen/zig-bl602-n

1
Lup Yuen Lee 李立源

Apache RTOS fails to link with our Compiled App ... Let's find out why we "can't link soft-float modules with single-float modules"

github.com/lupyuen/zig-bl602-n

1
Lup Yuen Lee 李立源

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

github.com/lupyuen/zig-bl602-n

1
Lup Yuen Lee 李立源
Follow

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

github.com/lupyuen/zig-bl602-n

· · Mastodon for Android · 1 · 0 · 0
Lup Yuen Lee 李立源

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

github.com/lupyuen/zig-bl602-n

1
Lup Yuen Lee 李立源

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

github.com/lupyuen/zig-bl602-n

1
Lup Yuen Lee 李立源

Running on with Apache RTOS ... All shall be explained in this article

lupyuen.github.io/articles/zig

1
Lup Yuen Lee 李立源

Apache RTOS comes with a simple App ... Let's run this on

lupyuen.github.io/articles/zig

1
Lup Yuen Lee 李立源

Here's how we import C functions into

lupyuen.github.io/articles/zig

1
Lup Yuen Lee 李立源

How we call printf() from

lupyuen.github.io/articles/zig

1
Lup Yuen Lee 李立源

We enable the App on Apache RTOS with menuconfig

lupyuen.github.io/articles/zig

1
Lup Yuen Lee 李立源

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

lupyuen.github.io/articles/zig

1
Lup Yuen Lee 李立源

Here's how we compile our App for

lupyuen.github.io/articles/zig

1
Lup Yuen Lee 李立源

Targets for

lupyuen.github.io/articles/zig

1
Lup Yuen Lee 李立源

fails to link with Apache RTOS for ... Here's why

lupyuen.github.io/articles/zig

1
Lup Yuen Lee 李立源

ELF Header Surgery for ... So that it links with Apache RTOS for

lupyuen.github.io/articles/zig

1
Lup Yuen Lee 李立源

Finally runs OK on with Apache RTOS! 🎉

lupyuen.github.io/articles/zig

1
Lup Yuen Lee 李立源

HAL for Microcontrollers ... Coming soon!

lupyuen.github.io/articles/zig

1
Lup Yuen Lee 李立源

Compiler is a drop-in replacement for C Compiler ... Works great for maintaining complex C projects!

lupyuen.github.io/articles/zig

1
Lup Yuen Lee 李立源

Floating-Point ABI ... Might be fixed soon 👍

lupyuen.github.io/articles/zig

1
Lup Yuen Lee 李立源

Here's how we build and run a App on with Apache RTOS

lupyuen.github.io/articles/zig

0
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