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The STM32F407G-DISC1 Discovery Kit is the official, updated evaluation board from STMicroelectronics designed to showcase the high performance of the STM32F407 high-line microcontroller family. Built around the powerful STM32F407VGT6 core—an ARM Cortex-M4 32-bit RISC processor with Floating Point Unit (FPU) operating at frequencies up to $168\text{ MHz}$—this board provides a complete hardware environment for evaluating advanced DSP, real-time control, and audio processing capabilities.

The board features an updated onboard ST-LINK/V2-1 embedded debug tool, providing seamless USB programming, debugging, and virtual COM port (VCP) connectivity with popular IDEs such as STM32CubeIDE, Keil MDK-ARM, and IAR Embedded Workbench. To facilitate rapid prototyping, ST has equipped the board with a comprehensive array of onboard peripherals: an omnidirectional MEMS digital microphone, a Cirrus Logic CS43L22 audio DAC connected to an integrated Class-D speaker amplifier and $3.5\text{mm}$ stereo headphone jack, a 3-axis motion accelerometer, a USB OTG Micro-AB connector, and extension pin headers exposing all LQFP100 microcontroller I/Os.

Key Features and Benefits

• 168MHz ARM Cortex-M4 Core with FPU: High-efficiency DSP instructions and single-precision Floating Point Unit for mathematical processing.

• Integrated ST-LINK/V2-1 Debugger: Native USB interface supports direct programming, drag-and-drop mass storage flashing, and USB Virtual COM port communications.

• Onboard Audio Processing Peripherals: Features an MP45DT02 digital MEMS microphone and CS43L22 audio codec with integrated $3.5\text{mm}$ audio output jack.

• Integrated Motion Sensing: Onboard LIS3DSH / LIS302DL 3-axis ST-MEMS accelerometer for tilt, motion, and vibration detection.

• Dual USB OTG Connectivity: Features dedicated USB OTG FS (Full-Speed) Micro-AB connector for host, device, or OTG operation.

• Full Breakout Header Access: All LQFP100 pins are brought out to standard $2.54\text{mm}$ male headers for easy breadboarding and logic analyzer attachment.

• Comprehensive Software Ecosystem: Fully supported by ST's free STM32CubeMX configuration tool and STM32CubeF4 software package containing HAL drivers and middleware libraries.

Technical Specifications

Board Layout & Power Supply Guide

1. Onboard Connector & Jumper Configurations:

• $CN1$ (USB ST-LINK): Micro-B USB port used for programming, debugging, power input, and serial log output.

• $CN5$ (USB OTG FS): Micro-AB USB port connected directly to the STM32F407 USB Peripheral.

• $CN4$ (Audio Out): $3.5\text{mm}$ stereo jack powered by the CS43L22 DAC.

• $JP1$ (IDD Current Measurement): Remove jumper to insert a multimeter for measuring MCU current draw.

• $P1/P2$ Extension Headers: Standard $2.54\text{mm}$ dual-row headers providing access to $PA0-PA15$, $PB0-PB15$, $PC0-PC15$, $PD0-PD15$, and $PE0-PE15$.

2. Power Supply Modes:

1. USB Powered (Default): Connect a standard Micro-USB cable to the $CN1$ (ST-LINK) port. The onboard regulator converts $5\text{V}$ USB power to $+3.3\text{V}$ for the MCU and peripherals.

2. External $5\text{V}$ Supply: Apply $+5\text{V DC}$ to the $5V$ header pin and system ground to $GND$.

MIGRATION NOTE (STM32F4-DISCO vs STM32F407G-DISC1): The STM32F407G-DISC1 is the revised version of the legacy STM32F4-DISCOVERY board. It replaces the older ST-LINK/V2 with the upgraded ST-LINK/V2-1, which adds drag-and-drop programming (USB Mass Storage), a Virtual COM Port (UART-to-USB bridged directly to $PA2/PA3$), and ARM mbed Enabled compatibility.

Applications

• Digital Signal Processing (DSP): Real-time digital filtering, Fast Fourier Transforms (FFT), and active noise cancellation.

• Digital Audio Engineering: Voice recognition, MP3/WAV audio synthesis, and digital effects processing.

• Advanced Motion & Robotics: Multi-axis drone flight controllers, robotic arm inverse kinematics, and motor drive systems.

• Industrial Automation: CAN bus communications networks, PLC controllers, and industrial data logging platforms.

Package Includes

• 1 x STM32F407G-DISC1 Discovery Board (Official STMicroelectronics Module)

Shipping & Delivery

• Free shipping on orders above ₹999 across India

• Dispatched within 1-3 business days

• Expected delivery: 3-7 business days depending on location

• Anti-static ESD packaging to ensure safe transit of sensitive IC components