wifi-controller

Project Summary

Location: projects/wifi/controller
Supported device: BK7239
Purpose: Provides a Wi-Fi controller solution that uses the SDIO 1-wire virtual netcard mode, enabling the host to control the module over SDIO and perform data forwarding.

Project Configuration

Two areas require special attention: the I/O configuration and the project configuration.

I/O Configuration

The I/O mappings are defined in the following files: - /projects/wifi/controller/config/bk7239/usr_gpio_config.h: defines GPIO functions and critical I/Os, such as the SDIO interrupt pin and the host power-control pin.

/projects/wifi/controller/main/cifd_gpio_config.h: defines demo I/Os used by the project, such as the button and battery monitoring pins.

Important

Adjust the I/O mapping to match the actual hardware. The controller project uses a single-wire SDIO configuration, so SDIO D1/D2/D3 are reserved.

Project Settings

Project-level macros are defined in /projects/wifi/controller/config/bk7239/config.
Key options include the SDIO 1-wire mode and the 3.3V I/O supply.
CONFIG_GPIO_1V8_EN=n ensures the I/O bank operates at 3.3V.

Build Command

make bk7239 PROJECT=wifi/controller (replace the target when building for another device)

Reference

See the README.md file in the project directory for additional details.