[Cryptech Tech] STM32F4 <-> Novena Bridge

[Fredrik Thulin]

On Friday, June 12, 2015 10:10:24 AM Fredrik Thulin wrote:
...
> Another consideration: except from the right hand side, I tried to not route
> things inwards underneath the STM32, in order to leave room for all the
> necessary VDD/VSS vias that I will add next.
> 
> I also expect to add an FT232H USB-UART chip, and to try and route a couple
> of SPI, I2C and GPIO interfaces to headers on the edges of the board. And
> some LEDs.

I've gone through ST AN4488 and added everything I believe is needed for the 
STM32 circuit. I hope to be able to fit the FT232H in the bottom right corner, 
but if I don't I think I'll grow the board to the south (meaning it will 
protrude from the Novena on both it's left and bottom side, instead of just 
the bottom side).

If I grow the board, I may even put on footprints for the RTC and AT tiny 
since those ought to be simple and not take a lot of time to draw into the 
schematics.

/Fredrik
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