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Board STM32F745 Discovery

Dave Hylands edited this page Jul 29, 2015 · 7 revisions

Cortex M7 STM32F746G

###Features###

  • STM32F746NGH6U 216MHz (216pin TFBGA)
  • 1024KB flash ROM, 320KB RAM
  • USB OTG FS/HS, camera interface, Ethernet, LCD-TFT
  • SAI Audio DAC stereo with audio jack input and output
  • Stereo MEMS digital microphones
  • sdcard connector
  • 1 user LED
  • 1 user switch
  • Reset switch
  • Arduino Uno V3 connectors
  • Integrated ST-LINK/V2-1

###Status###

  • Initial support has been implemented. User switch, LED, and HW UART REPL are working.
  • USB Serial not working yet
  • Flash file system not working yet
  • Use BOARD=STM32F7DISC to build micropython

###Entering DFU mode### The board doesn't provide a convenient way to enter DFU mode. There are several techniques that can be used to enter DFU mode. DFU mode is available on the USB FS connector (CN13)

  • You can short the pads where R42 would be installed (it isn't installed by default) and press the reset button. You should now be able see the board when using dfu-util -l
  • I chose to install a switch between the MCU side of R42 and 3.3v (see picture below).
  • You can install the initial micropython image using the STLINK interface, and then use pyb.bootloader() to enter DFU mode from the REPL.

STM32F7 Discovery Board

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