Ai-Thinker WB2-12F development board

Overview

BL602/BL604 is a Wi-Fi+BLE chipset introduced by Bouffalo Lab, which is used for low power consumption and high performance application development. The wireless subsystem includes 2.4G radio, Wi-Fi 802.11b/g/n and BLE 5.0 baseband/MAC design. The microcontroller subsystem includes a 32-bit RISC CPU with low power consumption, cache and memory. The power management unit controls the low power consumption mode. In addition, it also supports various security features. The external interfaces include SDIO, SPI, UART, I2C, IR remote, PWM, ADC, DAC, PIR and GPIO.

This WB2 (BL602) 12F format Module Development Board features a SiFive E24 32 bit RISC-V CPU with FPU, it supports High Frequency clock up to 192Mhz, have 128k ROM, 276kB RAM, 2.4 GHz WIFI 1T1R mode, support 20 MHz, data rate up to 72.2 Mbps, BLE 5.0 with 2MB phy. It is a secure MCU which supports Secure boot, ECC-256 signed image, QSPI/SPI Flash On-The-Fly AES Decryption and PKA (Public Key Accelerator).

Hardware

For more information about the Bouffalo Lab BL-60x MCU:

Supported Features

The ai_wb2_12f board supports the hardware features listed below.

on-chip / on-board
Feature integrated in the SoC / present on the board.
2 / 2
Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.
vnd,foo
Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

System Clock

The WB2 (BL602) Development Board is configured to run at max speed (192MHz).

Serial Port

The ai_wb2_12f board uses UART0 as default serial port. It is connected to USB Serial converter and port is used for both program and console.

Programming and Debugging

Samples

#. Build the Zephyr kernel and the Hello World sample application:

# From the root of the zephyr repository
west build -b ai_wb2_12f samples/hello_world
west flash

  1. Run your favorite terminal program to listen for output. Under Linux the terminal should be /dev/ttyUSB0. For example:

    $ screen /dev/ttyUSB0 115200

    The -o option tells minicom not to send the modem initialization string. Connection should be configured as follows:

    • Speed: 115200

    • Data: 8 bits

    • Parity: None

    • Stop bits: 1

    Then, press and release RST button

    *** Booting Zephyr OS build v4.1.0 ***
Hello World! ai_wb2_12f/bl602c00q2i

Congratulations, you have ai_wb2_12f configured and running Zephyr.