Anyone here know anything about the SAM L21 Xplained Pro; in particular, running at a different VDDIO ?
I have a question posted in The Other Place: http://www.at91.com/discussions/...
Anyone here know anything about the SAM L21 Xplained Pro; in particular, running at a different VDDIO ?
I have a question posted in The Other Place: http://www.at91.com/discussions/...
For EDBG inputs it is not a problem, since your VDDIO will be less than VDD of the EDBG.
EDBG will never have any outputs configured if you don't access corresponding function. And the only thing you really need form EDBG is SWD, which is powered from VDDIN. So just don't open a virtual COM port, since realistically there is no way to access SPI or TWI connection anyway.
PS: I'm not going to that site, I think ARM questions belong here.
Thanks, Alex.
That's the way I'd hoped it'd be. Shame they couldn't have made it clear in the documentation.
So I've scratched Atmel from some IoT/M2M demos I'm doing next week.
realistically there is no way to access SPI or TWI connection anyway.
Why do you say that?
I've had the SPI working on D20/D21/R21 Xpro.
I think ARM questions belong here.
Indeed. The separation is ridiculous.
It is claimed that this forum software was chosen because of its flexibility - so I really don't see why they don't just add a set of ARM forums here...
Why do you say that?I've had the SPI working on D20/D21/R21 Xpro.
Also, what is the use case for having separate voltage for IO on a micro controller? The only thing comes to mind is interfacing with FPGAs, but who does that?