[Cryptech Tech] Alpha keystore flash always writeable

[Fredrik Thulin]

On Thursday, February 04, 2016 11:44:09 PM Jacob wrote:
> On 2/4/2016 10:47 PM, Pavel Shatov wrote:
> > On 04.02.2016 23:30, Peter Stuge wrote:
> >> On a more serious note I'll see if I can draw you a symbol,
> >> footprint, schematic and layout for the little ARM, so that
> >> you can just do a copy and paste to replace the FTDIs.
> >>
> >> If nothing else I guess it proves a point.
> >>
> >>
> >
> > Fredrik, do we have an unused UART in STM32? I was thinking, maybe we
> > can add a 4-pin header (TX, RX, 3V3, GND) to Alpha. Peter can then
> > design simple extension board with little ARM and USB connector. Once
> > the board and protocol firmware for the little ARM are ready, we will be
> > able to throw away FTDIs and just borrow Peter's design. What do you 
think?
> 
> There are free UARTs available e.g. pins 27,26 (UART7 Rx/Tx).
> I like this idea very much, and Peter, if you are interested, I can work 
> with you and layout this add-on extension board. This will place minimal 
> demand on Fredrik, requiring only the addition of a 4 pin header and 2 
> pullup / 2 series resistors to the main alpha board.
> 
> Someone will need to write the UART-side code though.

This isn't about me or my time - this is about getting the alpha board done. 

I find myself in the ungrateful situation where I have no choice but to 
consider it my job to say no to well meaning people whose agenda I ultimately 
share. Sorry - really.

Let's get past this now and hope for a continuation after the alpha where we 
can make something even better together.

/Fredrik
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