STM32F401RET6 Development Board
= HighPerformance ARM CortexM4 MCU for Advanced Projects =
The STM32F401RET6 is a 32bit ARM CortexM4 microcontroller with floating-point unit (FPU) and DSP instructions. Operating at 84MHz, it delivers 105 DMIPS performance, making it ideal for motor control, medical equipment, and industrial applications.
84MHz CortexM4 with FPU 105 DMIPS processing power
512KB Flash & 96KB RAM - Ample storage for complex firmware
Supply voltage is 1.7V to 3.6V - use 3.3V for typical operation
Requires external ST-Link programmer for firmware upload via SWD interface
Not 5V tolerant - use level shifters for 5V peripherals
= Technical Specifications =
| Parameter | Value |
|---|
| Core | ARM Cortex-M4 with FPU |
| Clock Speed | 84MHz |
| Flash Memory | 512KB |
| SRAM | 96KB |
| GPIO Pins | 50 |
| ADC | 16 channels x 12-bit |
| Communication | 3x I2C, 3x USART, 3x SPI, USB OTG |
| Package | 64-pin LQFP (10x10mm) |
| Operating Temp | -40°C to +85°C |
= Key Features =
ART Accelerator 512KB Flash with zerowait execution
DSP & FPU Support Floatingpoint and digital signal processing
Rich Peripherals - 8 timers, PWM, DMA with 16 streams
USB OTG Fullspeed device/host with on-chip PHY
Low Power Modes - Sleep, stop, and standby for battery projects
RealTime Clock Subsecond accuracy with hardware calendar
== Applications ==
- Motor drive and application control
- Medical equipment and monitoring
- Industrial PLCs and inverters
- Printers and scanners
- Alarm systems and video intercom
- Home audio appliances
High Performance - 105 DMIPS with 1.25 DMIPS/MHz
Rich Ecosystem - Supports STM32CubeMX, Keil, IAR, Arduino
√ Compatible with STM32duino core
√ SWD/JTAG debug interface
√ 96-bit unique ID for device identification
= Development Setup =
The board supports multiple development environments including STM32CubeIDE, Keil MDK, IAR EWARM, and Arduino IDE. Programming requires an ST-Link V2 programmer connected via SWD interface. For peripheral configuration, use STM32CubeMX.
Use STM32CubeMX for easy pin configuration
Select "STM32F401RE" board in Arduino IDE for compatibility
USB port is not for programming use STLink only
Core voltage is 3.3V - do not apply 5V to GPIO
= Troubleshooting =
Board not recognized:
- Use ST-Link V2 programmer for programming
- USB is power only (or USB OTG function)
- Install STM32CubeProgrammer for firmware upload
Firmware upload fails:
- Check SWD connections (SWCLK, SWDIO, GND, 3.3V)
- Ensure board is powered (3.3V via ST-Link or external)
- Verify correct target MCU selected in IDE
