Date: Sat, 2 Feb 2008 21:49:45 -0800 From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: "Mario Lobo" <mlobo@digiart.art.br>, "Warren Block" <wblock@wonkity.com> Cc: questions@freebsd.org Subject: RE: Serial port question Message-ID: <BMEDLGAENEKCJFGODFOCEEFKCFAA.tedm@toybox.placo.com> In-Reply-To: <200801302221.49266.mlobo@digiart.art.br>
next in thread | previous in thread | raw e-mail | index | archive | help
> -----Original Message----- > From: owner-freebsd-questions@freebsd.org > [mailto:owner-freebsd-questions@freebsd.org]On Behalf Of Mario Lobo > Sent: Wednesday, January 30, 2008 5:22 PM > To: Warren Block > Cc: questions@freebsd.org > Subject: Re: Serial port question > > > On Wednesday 30 January 2008 21:42:28 you wrote: > > On Wed, 30 Jan 2008, Mario Lobo wrote: > > > I am doing some experiments with the WL5460AP. I doesn't have a serial > > > connector but the RTL8186 does have a UART and the circuit > board has a 4 > > > pin connector (4-3.3V, 3-TXD, 2-RXD, 1-GND) to the UART. When you plugged in to this port, did you insert 1488 and 1489 line driver/line receiver chips? RS232 serial data is +12V ~ -12V and that UART output is undoubtedly TTL 5v+ signal level. Hopefully you didn't fry the port. Ted
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?BMEDLGAENEKCJFGODFOCEEFKCFAA.tedm>