Date: Tue, 28 Dec 1999 15:43:24 -0500 From: "Swanson, Toby J." <tjswanson@tva.gov> To: "Toby J. Swanson" <toby@milkyway.org>, "'Andy Sparrow'" <andy@geek4food.org> Cc: questions@freebsd.org, "Swanson, Toby J." <tjswanson@tva.gov> Subject: RE: high speed serial card support Message-ID: <8C8DCBC7A064D01181F30000F8014E27C2EAE4@knxnorois1b.noh.tva.gov>
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Finally got the thing to work. It turns out the motherboard was assigning the same IRQ to the LavaPort that was assigned to the onboard SCSI controller, thus the lock up. I disabled the parallel port and then moved the LavaPort from slot to slot until it was finally assigned a free IRQ. I just love PnP. Toby > > I finally got a LavaPort 650 (single port 16650 UART), installed it in > an > > Intel T440BX server mother board, Pentium II 400 Mhz, 128Mb RAM, > > FreeBSD 3.3. I modified the isa.h file to reflect the card's correct > I/O > > address for COM3, made the corresponding entries in the kernel > > configuration file for COM3 with the correct IRQ and flags 0x20000 > > entry. The board is recognized on boot up but when I > > "cu -l /dev/cuaa0 -s 1200" (or any speed) the whole system stops dead. > > No multi screens, no breaking out, can't ping the machine. Only a front > > panel reset starts the machine again. Any thoughts on the cause? > > > > I'm not sure what your IIRC comment is referring to. > > I was referring to the 0x20000 flags necessary to enable 16650 > support in the sio driver, without which it won't take advantage > of the special features (like the larger FIFO). The overclocked > speed (on my card anyway) is entirely transparent to FreeBSD, which > simply opens the port at the specified speed, and the hardware > multiplier takes care of bumping the speed. > > Personally, I'd be inclined to leave the source alone and use the > userconfig interface to enable sio2/COM3 and set the address. > > If the address doesn't change, you get to play with the Forth stuff > to add commands in '/boot/kernel.conf' so you don't need to do it > every time you re-start. > > Does the card respond to Plug'n'Pray probes? Did you cold-boot or > warm-boot the machine after getting the address from DOS? > > > Cheers, > > AS > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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