I would like to rely on K22 uC series for a VERY nice family of boards but is not yet widely available. Which can be separate from USB family boards. Unfortunately, regarding to USB, Microchip is not consistent (I'm missing very hard K50 equivalent of 2550/4550). So, this mix of different uC's are not good for a family of boards which try to offer some future/backward compatibility :-( (not to say that a very bad mix is 5V - 3.3V boards - and I'm reffering at interfacing)
>Remappable pins are getting me crazy :) I said that to you long time ago :P - a first Cookoo song. On Feb 8, 6:53 pm, Sebastien Lelong <[email protected]> wrote: > 2011/2/8 funlw65(Vasi) <[email protected]> > > > He he, I think the collision is only in my head. > > Well, Sebastien wanted to remap the SPI2 pins on pins used by the RTC > > clock.and Boot LED... > > > I considered these: > > > - RP17, RP18 are occupied by RX1, TX1 > > - RP4 is RTC out > > - RP7, RP8 is I2C1 > > - RP9, RP10 are part of ICSP connector > > these pins can still be used for other purpose when not in ICSP, right ? Yes but with some care. On a final project where destination is not changed, yes. > > > - RP11, RP12 are RTC clock > > - RP13 is Boot LED (RC2) <-- other boards compatibility. > > There's no compatibility issue here, just use an alias... > Yes, a virtual layer is always a solution but I wanted also to be HW compatibility (at least, this is the first thing I'm trying to solve, where is possible). > > > > Also I had/have some unclear things: > > - you said RTC Out pulse pin is optional. That mean I can disable it > > without loosing RTC feature? > > this is what I understand, Kiste may confirm > > > - when you remap pins for SPI2, it needs to be in order (RP1, RP2, > > RP3, etc.), or can be selected random? > > from what I understand, it can be whatever order you want. There are > actually 2 registers per remappable pins, one for input, another four > output. You then select what function to associate. > > Cheers, > Seb -- You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jallib?hl=en.
