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.
Jacob
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