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47 lines
1.5 KiB
Markdown
47 lines
1.5 KiB
Markdown
# cyw43
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Rust driver for the CYW43439 wifi chip, used in the Raspberry Pi Pico W. Implementation based on [Infineon/wifi-host-driver](https://github.com/Infineon/wifi-host-driver).
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## Current status
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Working:
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- Station mode (joining an AP).
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- AP mode (creating an AP)
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- Scanning
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- Sending and receiving Ethernet frames.
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- Using the default MAC address.
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- [`embassy-net`](https://embassy.dev) integration.
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- RP2040 PIO driver for the nonstandard half-duplex SPI used in the Pico W.
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- Using IRQ for device events
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- GPIO support (for LED on the Pico W)
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TODO:
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- Setting a custom MAC address.
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- Bus sleep (for power consumption optimization)
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## Running the examples
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- Install `probe-rs` following the instructions at <https://probe.rs>.
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- `cd examples/rp`
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### Example 1: Scan the wifi stations
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- `cargo run --release --bin wifi_scan`
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### Example 2: Create an access point (IP and credentials in the code)
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- `cargo run --release --bin wifi_ap_tcp_server`
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### Example 3: Connect to an existing network and create a server
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- `cargo run --release --bin wifi_tcp_server`
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After a few seconds, you should see that DHCP picks up an IP address like this
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```
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11.944489 DEBUG Acquired IP configuration:
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11.944517 DEBUG IP address: 192.168.0.250/24
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11.944620 DEBUG Default gateway: 192.168.0.33
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11.944722 DEBUG DNS server 0: 192.168.0.33
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```
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This example implements a TCP echo server on port 1234. You can try connecting to it with:
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```
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nc 192.168.0.250 1234
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```
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Send it some data, you should see it echoed back and printed in the firmware's logs.
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