Date: Wed, 15 May 2013 02:17:51 +0300 From: Aleksandr Rybalko <ray@freebsd.org> To: Tom Everett <tom@khubla.com> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: RS-232 driver for GPIO Message-ID: <20130515021751.8848a996.ray@freebsd.org> In-Reply-To: <CAB3ij4DLEBe_R1ydVJ0T-V0-ufizMHERNnPuzO_DY8iOE=1kSQ@mail.gmail.com> References: <CAB3ij4AzL8B6nS1kFa%2BgjmAVEOE8qO7UwPv_vBzRPn1sUNYuDQ@mail.gmail.com> <CAJ-Vmo=ZzAOyy9hWzMDw7bt9=nxsEzyAJnScgL-3NFfzcf7RXA@mail.gmail.com> <20130514192448.7b48e095.ray@freebsd.org> <CAB3ij4DLEBe_R1ydVJ0T-V0-ufizMHERNnPuzO_DY8iOE=1kSQ@mail.gmail.com>
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On Tue, 14 May 2013 12:20:08 -0600 Tom Everett <tom@khubla.com> wrote: > ok so the FDT definition would have to be added here? > > http://svnweb.freebsd.org/base/head/sys/boot/fdt/dts/bcm2835-rpi-b.dts?view=markup > Yeah, right. But I have bad news. Both UARTs can be connected to pairs(tx+rx) 14+16, 32+33, 40+41 and both UARTs can be connected to any of this pins. But only 14, 16 and 40(PWM0) wired to ext.pin. > > > On Tue, May 14, 2013 at 10:24 AM, Aleksandr Rybalko <ray@freebsd.org> > wrote: > > > On Tue, 14 May 2013 09:06:44 -0700 > > Adrian Chadd <adrian@freebsd.org> wrote: > > > > > ... the r-pi actually has an RS232 port exposed via GPIO. It's > > > only 3.3v but it's there. > > > > > > Someone just needs to write up an SIO driver for it and then put > > > the GPIO pins in question into RS232 "mode". > > > > we have it already :) (console works on uart) > > only FDT definition is required. > > And maybe some fixes for boudrate setting and/or format setup > > (bits/parity/stop bits/etc) > > > > > > > > Yay multi-function GPIO pins! > > > > > > > > > > > > adrian > > > > > > > > > On 14 May 2013 08:58, Tom Everett <tom@khubla.com> wrote: > > > > Good morning ARM mailing list. > > > > > > > > I've been running FreeBSD on my Pi, and I've now got two XBee > > > > Pros which I hope to connect. XBee's communicate over RS-232. > > > > > > > > https://www.sparkfun.com/products/8742 > > > > > > > > I see from the source tree that it was possible to attach the > > > > iic driver to GPIO pins in software: > > > > > > > > http://svnweb.freebsd.org/base/head/sys/dev/gpio/gpioiic.c?view=markup > > > > > > > > I'm wondering, it is possible to connect the FreeBSD serial > > > > driver for RS-2332 to GPIO in a similar way to how iic was > > > > connected? > > > > > > > > > > > > > > > > -- > > > > A better world shall emerge based on faith and understanding - > > > > Douglas MacArthur > > > > _______________________________________________ > > > > freebsd-arm@freebsd.org mailing list > > > > http://lists.freebsd.org/mailman/listinfo/freebsd-arm > > > > To unsubscribe, send any mail to > > > > "freebsd-arm-unsubscribe@freebsd.org" > > > _______________________________________________ > > > freebsd-arm@freebsd.org mailing list > > > http://lists.freebsd.org/mailman/listinfo/freebsd-arm > > > To unsubscribe, send any mail to > > > "freebsd-arm-unsubscribe@freebsd.org" > > > > > > -- > > Aleksandr Rybalko <ray@freebsd.org> > > > > > > -- > A better world shall emerge based on faith and understanding - > Douglas MacArthur -- Aleksandr Rybalko <ray@freebsd.org>
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