I have heard from a predecessor that in the electronics industry, it is very dangerous to go backwards or go slowly. It seems that today, Motorola, Nokia Mobile, etc. have become vivid examples. As the embedded semiconductor industry with faster update cycle, the competition is fierce. Before the Atmel launched the Xplained Pro platform ecosystem, the Nucleo series of cards from STMicroelectronics appeared.
Nucleo is another style series board after STMicroelectronics joins the ARM embed project. It has two distinct features: 1. Compatible with Arduino UNO R3 Shield expansion board, 2. Support ARM embed project. Some people may have questions, what is the ARM embed project? Mbed is a prototyping platform for the ARM Cortex-M family of processors designed to foster IoT collaboration projects, including free software libraries (SDKs), hardware reference designs (HDKs) and online tools (Web) The three parts provide users with simple, convenient and fast operation of MCU development and debugging based on ARM Cortex-M processor. Recently, Aiban.com also got an ARM Cortex-M4 processor-based STMicroelectronics Nucleo series card, STM32F401 Nucleo, which was launched by STMicroelectronics recently. I am amazed that the company can get the source of goods at the same time, and also very grateful to the company to provide the board to the evaluation of the board, so that the majority of users will experience the latest board of ST.
STM32F401 Nucleo Development Board
Get the STM32F401 Nucleo development board first feeling is "changed", it looks good, is also the packaging of STM32F series board, but the board is no longer the most common green PCB board, this is a delicate and compact milky white board It is unforgettable, we can also see the specially marked mbed-enabled function in the introduction of the card on the box.
STM32F401 Nucleo Development BoardThe board is removed from the package and is exquisitely small, just the size of an adult's palm. The layout of the board is also clear at a glance. It is well divided into the microcontroller part and the debugger part. Let's first understand the main features of the STM32F401 Nucleo board.
STM32F401 Nucleo development board front
STM32F401 Nucleo development board reverse side
STM32F401 Nucleo development board expansion IO interface definition map
STM32F401 Nucleo development board hardware block diagram
STM32F401RET6 microcontroller based on ARM Cortex-M4 processor with DSP, up to 84MHz
Support Arduino UNO R3 Shield expansion board, all IO port pins of the microcontroller are led out through the header socket
ST-LINK/V2-1 debugger for debugging external microcontrollers
3 LEDs: one USB communication LED, one power LED, one user LED; two mechanical buttons: reset, user
3 different functions of USB interface: virtual serial port, capacity storage, debugging interface
3 different power supply modes: mini USB interface power supply, IO pin power supply, power supply via Arduino UNO R3 Shield interface
Design tools that support Keil, IAR, and embed online IDEs
STM32F401 Nucleo development board contains the mechanical buttons, LED indicators, mini USB debugging interface of STM32F series boards, and many IO port peripherals are led out through the pin header. In addition, there are also some differences, such as Compatible with Arduino Shield interface, and can supply power to the board through Arduino Shield expansion interface. The board is equipped with STM32F401RET6 core microcontroller, 32-bit high performance ARM Cortex-M4 processor, with FPU unit, up to 84MHz frequency. ,See below.
STM32F401RET6 microcontroller
STM32F401RET6 microcontroller hardware block diagram
STM32F401RET6 microcontroller uses 1.7V~3.6V power supply, integrates 512KB Flash and 96KB SRAM, can support up to 50 GPIO ports, integrates USB OTG function, timer*8, SPI*3, I2S*2, I2C* 3, USART * 3, SDIO * 1, 12-bit ADC * 1, etc., more ST's unique adaptive real-time (ART) accelerator, can achieve code zero wait state from 512KB on-chip flash memory, which is in Love The STM32F429ZIT6U microcontroller from the previously reviewed STM32F429I Discovery development board is also featured, and the functionality is the same.
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