Date: Wed, 28 Jan 1998 08:43:46 +1030 From: Mike Smith <mike@smith.net.au> To: Kedar <kedar@asacomputers.com> Cc: freebsd-hardware@FreeBSD.ORG Subject: Re: Serial I/O. Message-ID: <199801272213.IAA00424@word.smith.net.au> In-Reply-To: Your message of "Tue, 27 Jan 1998 12:09:32 -0800." <2.2.32.19980127200932.0209f0b8@gw1>
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> I am trying to locate a motherboard that is capable of the > following. Would you know of any? Any pointers? There are some industrial systems that offer this sort of functionality. What other requirements do you have for the system? (CPU, peripherals, etc.?) > > 1) No video card required. Easy. > > 2) The BIOS wakes up on the serial port and uses it for all > > communications. > > 3) The BIOS serial communications should require no fancy communications > > protocols, ie. we should be able to use a dumb terminal. This is quite specialised; depending on what you want to do with the BIOS you might be able to live without this if you set it up right beforehand. > > 5) Sending a BREAK (or perhaps a special character/escape sequence) should > > provide the same function as Ctrl-Alt-Del normally does (before, during, > > and after boot, if possible). That's asking for a lot; it sounds like what you really want is a smart console emulator card. > > 6) Access to the Unix boot loader through the serial port should also be > > available after the BIOS loads it. This is needed to provide options to > > the kernel (eg. single user mode, device configuration mode, etc.) That much is trivial; put "-h" in /boot/config. It's marvellous, I tell you. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\
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