[Cryptech Tech] USB interface

Fredrik Thulin fredrik at thulin.net
Wed Apr 15 17:46:16 UTC 2020


On onsdag 15 april 2020 kl. 19:15:19 CEST Peter Stuge wrote:
> Peter Stuge wrote:
> > I suggest:
> > 
> > 1. Move forward with SAMD11 replacing FTDI
> > 2. Add CTS+RTS to the UART interface
> 
> I discovered that CTS+RTS are actually already connected to the USER FTDI
> in the rev03 schematic, but not to the MGMT FTDI. So at least some of the
> routing already exists!

I must be misunderstanding what you mean with "connected" because I see both 
FT_MGMT_CTS and FT_MGMT_RTS in the schematic and on the KiCAD converted board 
layout. See the attached screenshot with FT_MGMT_CTS highlighted.

/Fredrik
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