[Cryptech Tech] USB interface

[Pavel Shatov]

27.05.2020 9:06, Joachim Strömbergson пишет:
> Aloha!
> 
> On 2020-04-08 02:43, Peter Stuge wrote:
>> Joachim Strömbergson wrote:
>>> How much effort would replacing the FTDI chips and adding extra wires
>>> between the new chips for SPI be?
>>
>> I guess the HW designer (Pavel? Fredrik?) has to say. I think it might
>> be a day or two for schematic and layout, but I didn't look at the layout
>> to see if there may be some difficult contention where new traces would go.
> 
> Peter, we do like what you propose. But Pavel would need your assistance
> in order to implement the changes. We would also need the SW for the
> chips replacing the FTDI chips. At least we need to be able to trust
> that you will be able to provide it in good time when the new boards
> will be back from manufacturing.
> 
> I know Pavel have tried to reache out to you about assistance re the
> board updates. If we don't here back from you by next Wednesday, or if
> you see that you can't assist with board updates and the SW we will take
> the decision not to change the interfaces. We need to complete the board
> changes and this is the last area.
> 
Ideally I'd prefer Peter to provide me with a PDF with a piece of 
schematics he wants added, as he suggested earlier, so that I can just 
copy it into KiCAD project.
> 
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-- 
With best regards,
Pavel Shatov