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SparkFun MicroMod STM32 Processor

The SparkFun MicroMod STM32 Processor Board is ready to rock your MicroMod world with its ARM® Cortex®-M4 32-bit RISC core! This little Processor Board provides you with an economical and easy to use development platform if you're needing more power with minimal working space. With the M.2 MicroMod connector, connecting your STM32 Processor is a breeze. Simply match up the key on your processor's beveled edge connector to the key on the M.2 connector and secure it with a screw (included with all Carrier Boards). The STM32 is one of the most powerful and economical microcontrollers available so to be able to add it to your MicroMod Carrier Board is a huge advantage for your project!

As we previously stated; the STM32F405 Processor is based on the high-performance ARM® Cortex®-M4 32-bit RISC core and can operate at a frequency of up to 168 MHz. This core features a floating point unit (FPU) single precision which supports all ARM single precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security. This Processor Board utilizes the DFU bootloader for uploading code, and incorporates an extensive range of enhanced I/Os and peripherals. To complement the STM32F405 processor, we've also added an additional 128Mb (16MB) serial flash memory chip to the underside of the board.


MicroMod is a modular interface ecosystem that connects a microcontroller “processor board” to various “carrier board” peripherals. Utilizing the M.2 standard, the MicroMod standard is designed to easily swap out processors on the fly. Pair a specialized carrier board for the project you need with your choice of compatible processor!


STM32 General Features:

  • ARM® 32-bit Cortex®-M4 CPU with FPU
    • Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execution from Flash memory
    • Frequency up to 168 MHz
    • Memory protection unit
    • 210 DMIPS/ 1.25 DMIPS/MHz (Dhrystone 2.1)
    • DSP instructions
  • 1 Mbyte of Flash memory
  • 192 Kbytes of SRAM including 64 Kbytes of CCM (core coupled memory) data RAM
  • Flexible static memory controller supporting Compact Flash, SRAM, PSRAM, NOR and NAND memories
  • Clock, reset and supply management
    • 1.8 V to 3.6 V application supply and I/Os
    • 32 kHz oscillator for RTC with calibration
    • Internal 32 kHz RC with calibration
  • Low-power operation
    • Sleep, Stop and Standby modes
  • Debug mode
    • Serial wire debug (SWD) & JTAG interfaces
    • Cortex-M4 Embedded Trace Macrocell™
  • Advanced connectivity
    • USB 2.0 full-speed device/host/OTG controller with on-chip PHY
    • USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA, on-chip full-speed PHY and ULPI
    • 10/100 Ethernet MAC with dedicated DMA: supports IEEE 1588v2 hardware, MII/RMII

Specific Peripherals available on MicroMod STM32:

  • UART
  • Two I2C Buses
  • SPI Bus
  • PDM Audio Processing
  • Two Dedicated Analog Inputs, 15 total analog input capable inputs
  • Two Dedicated Digital I/O Pins
  • Two Dedicated PWM Pins, 24 total PWM capable
  • Nine General Purpose I/O Pins

SparkFun MicroMod STM32 Processor Product Help and Resources

Getting Started with MicroMod

October 21, 2020

Dive into the world of MicroMod - a compact interface to connect a microcontroller to various peripherals via the M.2 Connector!

MicroMod Data Logging Carrier Board Hookup Guide

October 21, 2020

Get started with some customizable MicroMod data logging with the Data Logging Carrier Board.

MicroMod All The Pins (ATP) Carrier Board

October 21, 2020

Access All The Pins (ATP) of the MicroMod Processor Board with the Carrier Board!

ARM Programming

May 23, 2019

How to program SAMD21 or SAMD51 boards (or other ARM processors).

MicroMod STM32 Processor Hookup Guide

May 13, 2021

Get started with the MicroMod Ecosystem and the STM32 Processor Board!

SparkFun MicroMod Input and Display Carrier Board Hookup Guide

October 21, 2020

A short Hookup Guide to get started with the SparkFun MicroMod Input and Display Carrier Board

MicroMod Weather Carrier Board Hookup Guide

January 14, 2021

A quick guide to help to create your own MicroMod weather station using the MicroMod Weather Carrier Board and Processor of your choice.

MicroMod Asset Tracker Carrier Board Hookup Guide

February 25, 2021

Get started with the SparkFun MicroMod Asset Tracker Carrier Board following this Hookup Guide. The Asset Tracker uses the u-blox SARA-R510M8S LTE-M / NB-IoT module to provide a host of data communication options.

MicroMod Machine Learning Carrier Board Hookup Guide

October 21, 2020

Get hacking with this tutorial on our Machine Learning Carrier Board!

Designing with MicroMod

October 21, 2020

This tutorial will walk you through the specs of the MicroMod processor and carrier board as well as the basics of incorporating the MicroMod form factor into your own PCB designs!

Core Skill: DIY

Whether it's for assembling a kit, hacking an enclosure, or creating your own parts; the DIY skill is all about knowing how to use tools and the techniques associated with them.

1 DIY

Skill Level: Noob - Basic assembly is required. You may need to provide your own basic tools like a screwdriver, hammer or scissors. Power tools or custom parts are not required. Instructions will be included and easy to follow. Sewing may be required, but only with included patterns.
See all skill levels


Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

2 Programming

Skill Level: Rookie - You will need a better fundamental understand of what code is, and how it works. You will be using beginner-level software and development tools like Arduino. You will be dealing directly with code, but numerous examples and libraries are available. Sensors or shields will communicate with serial or TTL.
See all skill levels


Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

2 Electrical Prototyping

Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
See all skill levels


Comments

Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Does the MicroMod breakout expose the external memory controller interface?

    • Nevermind. Looking at the datasheet, there's only the pins to do so on the 100 pin and higher chips. It is simply not possible to expose pins that don't exist.

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