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    STM 32

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    ratheeshbr
    The document discusses the STM32 family of microcontrollers from STMicroelectronics. It describes the STM32's features such as ARM Cortex-M processor cores, variety of communication interfaces, memory, and range of performance levels. Development tools like compilers, debuggers, and in-circuit serial programmers are needed to develop code for STM32 microcontrollers using integrated development environments.

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    STM 32

    Uploaded by

    ratheeshbr
    558 views4 pages
    The document discusses the STM32 family of microcontrollers from STMicroelectronics. It describes the STM32's features such as ARM Cortex-M processor cores, variety of communication interfaces, memory, and range of performance levels. Development tools like compilers, debuggers, and in-circuit serial programmers are needed to develop code for STM32 microcontrollers using integrated development environments.

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    The document discusses the STM32 family of microcontrollers from STMicroelectronics. It describes the STM32's features such as ARM Cortex-M processor cores, variety of communication interfaces, memory, and range of performance levels. Development tools like compilers, debuggers, and in-circuit serial programmers are needed to develop code for STM32 microcontrollers using integrated development environments.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    558 views4 pages

    STM 32

    Uploaded by

    ratheeshbr
    The document discusses the STM32 family of microcontrollers from STMicroelectronics. It describes the STM32's features such as ARM Cortex-M processor cores, variety of communication interfaces, memory, and range of performance levels. Development tools like compilers, debuggers, and in-circuit serial programmers are needed to develop code for STM32 microcontrollers using integrated development environments.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 4

    The STM32 family of microcontrollers from STMicroelectronics is

    based on the ARM Cortex-M 32-bit processor core.

    The STM32 series are some of the most popular microcontrollers used
    in a wide variety of products. They also have an excellent support base
    from multiple microcontroller development forums.

    STM32 microcontrollers offer a large number of serial and parallel


    communication peripherals which can be interfaced with all kinds of
    electronic components including sensors, displays, cameras, motors,
    etc. All STM32 variants come with internal Flash memory and RAM.

    The range of performance available with the STM32 is quite expansive.


    Some of the most basic variants include the STM32F0 and STM32F1
    sub-series that start with a clock frequency of only 24 MHz, and are
    available in packages with as few as 16 pins.
    At the other performance extreme, the STM32H7 operates at up to
    400 MHz, and is available in packages with as many as 240 pins.
    The more advanced models are available with Floating Point Units
    (FPU) for applications with serious numerical processing requirements.
    These more advanced models blur the line between a microcontroller
    and a microprocessor.

    Finally, the STM32L sub-series is designed specifically for low-power


    portable applications running from a small battery.

    Development Tools
    Development tools are required to develop the code, program the
    microcontroller and test/debug the code. The development tools
    include:

     Compiler

     Debugger

     In-Circuit Serial Programmer (ICSP)

    There are several software development tools available for code


    development on STM32 microcontrollers. The software tools are
    available as Integrated Development Environments (IDE) which
    combines all of the necessary tools into an integrated environment.
    Two common development packages include:
     Keil MDK ARM (uVison5 IDE) – The MDK ARM IDE is a very
    stable development environment which can be downloaded for free. It
    allows development of code up to a program size of 32 KB. For
    developing larger programs a licensed version needs to be
    purchased here.
     CoIDE – A free tool chain which is based on a trimmed down
    version of the Eclipse IDE integrated along with an embedded ARM
    version of the free GCC compiler.
    There are also several other IDEs that are available for use with
    STM32 microcontrollers. However, this article focuses on developing
    and flashing a program using the very popular Keil MDK ARM uVision5
    IDE.
    Apart from the software tools, an In-Circuit Serial Programmer (ICSP) is
    required to program and test the code on the actual microcontroller.
    The ICSP is required to interface the microcontroller to the PC
    software tools via a USB port.
    The ARM Cortex-M microcontrollers support two programming
    protocols: JTAG (named by the electronics industry association the
    Joint Test Action Group) and Serial Wire Debug (SWD).
    There are several ICSP programmers available that support these
    protocols, including:
     Keil U-Link 2
     Segger J-Link
     ST-Link

    Developing the first application


    It’s always easiest to start with a readily available basic code
    framework. Then, add the code that is required for the specific
    application and model of microcontroller.
    Fortunately, STMicroelectronics provides a very useful graphical tool
    called STM32CubeMx that helps in creating a basic application project
    for any STM32 microcontroller of your choice. It also can be used to
    configure the peripherals on the multiplexed pins of the
    microcontroller.
    The STM32CubeMX tool can be downloaded from here. The
    STM32Cube comes with an extensive set of drivers for all types of
    peripherals and support for an optional FreeRTOS (a free Real-Time
    Operating System) pre-integrated with the code.

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