Emcraft Systems STM32F7 ARM Cortex M7 SoM and Development Kit Run uClinux

STMicro announced their STM32F7 MCU family the same as ARM announced their latest ARM Cortex M7 core for high-end micro-controllers last September. Emcraft Systems have now launched a STM32F7 system-on-module with 32MB SDRAM and 16MB NOR flash, and ported uClinux to the platform. The company has also launched a STM32F7 starter kit for evaluation and development. Both target industrial automation, system and power management, wireless networking / sensors and other embedded applications.

STM32F7-SOM-1A Module

STM32F7-SOMSTM32F7 system-on-module specifications:

  • MCU – STMicro STM32F746 Cortex M7 MCU up to 200 MHz with 320KB RAM, 1MB flash in TFBGA-216 package
  • System Memory – 32MB SDRAM
  • Storage – 16MB NOR flash
  • Connectivity – 802.3 Ethernet PHY
  • SoM connectors – 2x 80-pin (0.4mm pitch)
  • Debugging – ARM SWJ-DP combined JTAG and serial wire debug port
  • Misc – Watchdog, RTC, USB and other I/Os via SoM connectors
  • Power – 3.3V DC; Low-power mode with short startup times; Deep-sleep power mode with ultra- low power consumption profiles;
  • Dimensions – 30 mm x 46mm
  • Compliant with the Restriction of Hazardous Substances (RoHS) directive
STM32F7 Module Block Diagram
STM32F7 Module Block Diagram

The company provides U-boot and uClinux 2.6.33 source code, binary images, and documentation for the module, as well as hardware documentation.

STM32F7 Starter Kit

STM32F7_Starter_KitIn order to quickly get started with the SoM, a starter kit (KIT-STM32F7-EXT) composed of STM32F7 SoM and SOM-BSB-EXT baseboard is also available with the following key features:

The baseboard is 100×70 mm in size and has the following main interfaces:

  • SoM Connectors – For STM32F7 SoM
  • Connectivity – 10/100M Ethernet (RJ-45 connector)
  • USB – 1x mini USB interface using a USB-UART bridge, 1x  mini USB OTG Interface
  • Debugging – mini USB (UART), 20-pin ARM JTAG interface
  • Expansion – Breadboard area with unused STM32F7 signals
  • Misc – User LEDs and push-buttons (reset, user)
  • Power Supply – 5V via mini USB (UART) interface or VCC3 on SoM
  • Dimensions – 100×70 mm

You can watch the demo showcasing fast boot to Qt (4s) and the performance of the system on a Qt based user interface, which is said to have greatly improved over STM32F4 thanks to ART accelerator and L1 cache in STM32F7.

The starter kit can be pre-ordered for $159, and the STM32F7 SoM sells for $27 per unit in 10K+ orders. Software and hardware documentation, and pre-order links are available on Emcraft’s STM32F7 SoM product page.

The company is also getting rid of stock of their older starter kits based on Microsemi SmartFusion (Cortex-M3 + FPGA) and NXP LPC1788 for $49.

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