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An ST development board based on the STM32F405RGT6/STM32F405RG (Clock: 168MHz, Flash: 1024Kb, Ram:194Kb) MCU (LQFP-64) compatible with STM32Duino (Arduino).
# Adafruit Feather STM32F405 board
GenF4.menu.pnum.FEATHER_F405=Adafruit Feather STM32F405
GenF4.menu.pnum.FEATHER_F405.upload.maximum_size=1048576
GenF4.menu.pnum.FEATHER_F405.upload.maximum_data_size=131072
GenF4.menu.pnum.FEATHER_F405.build.board=FEATHER_F405
GenF4.menu.pnum.FEATHER_F405.build.product_line=STM32F405xx
GenF4.menu.pnum.FEATHER_F405.build.variant=FEATHER_F405
# STM32F405RGT6 STUnoPlus board
GenF4.menu.pnum.RBOARD_F405RGT6=STM32F405RGT6 STUnoPlus
GenF4.menu.pnum.RBOARD_F405RGT6.upload.maximum_size=1048576
GenF4.menu.pnum.RBOARD_F405RGT6.upload.maximum_data_size=131072
GenF4.menu.pnum.RBOARD_F405RGT6.build.board=RBOARD_F405RGT6
GenF4.menu.pnum.RBOARD_F405RGT6.build.product_line=STM32F405xx
GenF4.menu.pnum.RBOARD_F405RGT6.build.variant=RBOARD_F405RGT6
(add after the "# Adafruit Feather STM32F405 board" section).
That's all.
So on the arduino IDE, on the boards menu pick the option "Generic STM32F4 series" and the board part number: suboption pick the "STM32F405RGT6 STUnoPlus" option.
Note: while adafruit board and mine use the same MCU there are not compatible variants: adafruit uses a 12mhz external crystal, mine uses an 8mhz.
Front
*I submerge the boards on a painters solvent bath to clean the flux residue which I haven't any problem until the DC jack came, as you see, didn't took the solvent bath kindly :P
Back
*The footprint for the second crystal (Y2) was wrong on this board but it's already corrected on the KiCAD files.
The STUno+ running the Adafruit ILI9341 library over hardware SPI.
Video in progress...
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