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Modern embedded framework, using Rust and async.
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Matt Johnston f46e0eb5f2 Fix PowerManagementMode::None 
Mode was being set to 2 (PM2_POWERSAVE_MODE), should be
0 (NO_POWERSAVE_MODE). Setting None mode failed with a panic:

85.707099 DEBUG set pm2_sleep_ret = [00, 00, 00, 00]
└─ cyw43::control::{impl#0}::set_iovar_v::{async_fn#0} @ cyw43/src/fmt.rs:127
85.710469 ERROR panicked at 'IOCTL error -29'
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README.md

cyw43

WIP driver for the CYW43439 wifi chip, used in the Raspberry Pi Pico W. Implementation based on Infineon/wifi-host-driver.

Current status

Working:

  • Station mode (joining an AP).
  • AP mode (creating an AP)
  • Scanning
  • Sending and receiving Ethernet frames.
  • Using the default MAC address.
  • embassy-net integration.
  • RP2040 PIO driver for the nonstandard half-duplex SPI used in the Pico W.
  • Using IRQ for device events
  • GPIO support (for LED on the Pico W)

TODO:

  • Setting a custom MAC address.
  • Bus sleep (unclear what the benefit is. Is it needed for IRQs? or is it just power consumption optimization?)

Running the example

  • cargo install probe-rs-cli
  • cd examples/rpi-pico-w
  • WIFI_NETWORK=MyWifiNetwork WIFI_PASSWORD=MyWifiPassword cargo run --release

After a few seconds, you should see that DHCP picks up an IP address like this

11.944489 DEBUG Acquired IP configuration:
11.944517 DEBUG    IP address:      192.168.0.250/24
11.944620 DEBUG    Default gateway: 192.168.0.33
11.944722 DEBUG    DNS server 0:    192.168.0.33

The example implements a TCP echo server on port 1234. You can try connecting to it with:

nc 192.168.0.250 1234

Send it some data, you should see it echoed back and printed in the firmware's logs.

License

This work is licensed under either of

at your option.