BL602 Wifi Rust

This is work in progress and currently more a proof of concept. The code is awfully hacked together - just enough to make it work.

It uses the NuttX wifi blob from https://github.com/bouffalolab/bl_blob

Status

This connects to an access point and provides a minimal TCP server on port 4321. You can ping the BL602 and telnet to port 4321.

Sometimes it fails to connect (there is no retry currently) and it might panic.

Implementation Notes

This needs some modifications to the following crates (done in my forks referenced in Cargo.toml)

• riscv - needs support for ILP32F
• riscv-rt - needs support for ILP32F and initialization of the FPU

Also it needs a very special linker script.

It uses one of the timers which can't be used for other things.

Get Started

In examples/simple/wifi_config.rs change the SSID and PSK for your access point.

Maybe you need to change the IP address (currently 192.168.2.191) and the IP of the default gateway (192.168.2.1) in examples/simple/main.rs.

Compile with cargo build -Z build-std --target riscv32imfc-unknown-none-elf.json --example simple and flash the resulting binary.

Things to change

• especially the code in compat needs rework
• make it more stable
• use a queue for tx

and many more ...