Lup Yuen Lee 李立源 @lupyuen@qoto.org

Auto-generating #RustLang Wrappers for #BL602 IoT SDK

https://lupyuen.github.io/articles/rust?18#autogenerate-wrapper-functions

Curry veggies with tofu

Passing Strings from #RustLang to #BL602 IoT SDK

https://lupyuen.github.io/articles/rust?16#pass-strings-from-rust-to-c

Here's how we import the #BL602 IoT SDK into #RustLang

https://lupyuen.github.io/articles/rust?14#import-bl602-iot-sdk-into-rust

Code Switching C to #RustLang ... For #BL602 IoT SDK

https://lupyuen.github.io/articles/rust?6#bl602-blinky-in-rust

#BL602 Blinky Firmware ... C vs #RustLang

https://lupyuen.github.io/articles/rust?5#bl602-blinky-in-c

Here's the #BL602 Blinky Firmware in C ... Before Code Switching to #RustLang

https://lupyuen.github.io/articles/rust?5#bl602-blinky-in-c

#RustLang on #BL602 IoT SDK ... All shall be explained here

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

Here's how we import #BL602 IoT SDK into our #RustLang Firmware ... Someday we shall auto-generate these wrappers with "bindgen" and a Rust Procedural Macro

https://github.com/lupyuen/bl_iot_sdk/blob/rust/customer_app/sdk_app_rust/rust/src/lib.rs#L59-L180

Here's our #RustLang Blinky Firmware for #RISCV #BL602 IoT SDK

https://github.com/lupyuen/bl_iot_sdk/blob/rust/customer_app/sdk_app_rust/rust/src/lib.rs

#BL602 IoT SDK now supports Tencent Cloud

https://github.com/bouffalolab/bl_iot_sdk/tree/master/customer_app/bl602_demo_qcloud

Why is #BL602 designated RV32-IMACFX ? Here's the #RISCV alphabet soup...

https://en.wikipedia.org/wiki/RISC-V#ISA_base_and_extensions

Our Custom #RustLang Target for #BL602 also needs "features" set to "+m,+a,+c,+f" ... Figured this out by comparing the Standard Rust Targets "riscv32imac-unknown-none-elf" and "riscv64gc-unknown-none-elf" (64-bit #RISCV, double-precision hardfloat)

https://github.com/lupyuen/bl_iot_sdk/blob/rust/customer_app/sdk_app_rust/riscv32imacf-unknown-none-elf.json

Here's how we build #BL602 #RustLang programs with our Custom Target ... This also builds the Rust Core Library for our Custom Target

https://github.com/lupyuen/bl_iot_sdk/blob/rust/customer_app/sdk_app_rust/run.sh#L33-L77

Here's the Custom #RustLang Target for #BL602: "riscv32imacf-unknown-none-elf" ... We set "llvm-abiname" to "ilp32f" for Single-Precision Hardware Floating Point ... Similar to "gcc -mabi=ilp32f"

https://github.com/lupyuen/bl_iot_sdk/blob/rust/customer_app/sdk_app_rust/riscv32imacf-unknown-none-elf.json

#RustLang runs OK on #BL602 IoT SDK ... After creating custom target "riscv32imacf-unknown-none-elf" yay! 🎉

https://github.com/lupyuen/bl_iot_sdk/tree/rust/customer_app/sdk_app_rust

Linking #RustLang code (riscv32imac) with #BL602 IoT SDK (RV32-ACFIMX) ... "Can't link soft-float modules with single-float modules" 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/rust/customer_app/sdk_app_rust/run.sh

Our #BL602 Driver for #LoRa RFM90 Module @ThePine64 is complete! 🎉 I hope to see this in your #PineCone LoRa project real soon 👍

https://github.com/lupyuen/bl_iot_sdk/blob/master/components/3rdparty/lora-sx1262

And now #BL602 #LoRa SX1262 receives LoRa Packets successfully from RAKwireless #WisBlock yay! 🎉

https://github.com/lupyuen/wisblock-lora-transmitter

Semtech's Reference Implementation of #LoRa SX1262 Driver is a little odd ... It doesn't process interrupts automatically! Fortunately on #BL602 FreeRTOS we can easily forward the interrupt to the Application Task for processing

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/components/3rdparty/lora-sx1262/src/radio.c#L1249-L1267