Date: Wed, 20 May 1998 14:40:01 -0400 From: fam@risca.com (Frank Mandarino) To: ghelmer@scl.ameslab.gov (Guy Helmer) Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Boca io/at66 config question Message-ID: <98May20.144002edt.26881@sky.risca.com> In-Reply-To: <Pine.SGI.3.96.980515092528.3791C-100000@demios.scl.ameslab.gov> from Guy Helmer at "May 15, 98 10:30:01 am"
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Guy Helmer writes: > Does anyone have jumper configuration information for the boca io/at66 > multiport serial card? A friend has upgraded his FreeBSD system and in > the process we need to reconfigure the boca io/at66 card. It had been > setup to use serial ports individually at irqs 10, 11, 12, and 15, but now > it would be very useful to set it up to share an IRQ for four ports. > we are having trouble locating info on how to configure it this way (if it > is possible) -- boca research's web site doesn't even acknowledge that > this card exists. > > Any help would be greatly appreciated! It is definitely possible. I am using this board right now in a 2.2.6 system and it works great. I am not able to take a look at the actual card at the present time, but I have the Installation Guide in front of me. Jumper array J1 selects one of two I/O addresses for each port: 3F8 [O O-O] 220 2F8 [O O-O] 228 3E8 [O O-O] 240 2E8 [O O-O] 248 3E0 [O O-O] 260 2E0 [O O-O] 268 Jumper array J2 selects the individual IRQ for each port or the shared IRQ: IRQ4 [O O-O] S IRQ3 [O O-O] H IRQ10 [O O-O] A IRQ11 [O O-O] R IRQ12 [O O-O] E IRQ15 [O O-O] D Jumper J7 selects one of two interrupt status register I/O addresses: 208 [O-O O] 2F0 Jumper J8 selects the shared IRQ number: IRQ4 [O O-O] IRQ5 I believe I am using the jumper settings shown above. Here is the relevant info from my kernel configuration: device sio0 at isa? port "IO_COM1" tty irq 4 vector siointr device sio1 at isa? port "IO_COM2" tty irq 3 vector siointr device sio2 at isa? disable port "IO_COM3" tty irq 5 vector siointr device sio3 at isa? port "IO_COM4" tty irq 9 vector siointr device sio4 at isa? port 0x220 tty flags 0x985 device sio5 at isa? port 0x228 tty flags 0x985 device sio6 at isa? port 0x240 tty flags 0x985 device sio7 at isa? port 0x248 tty flags 0x985 device sio8 at isa? port 0x260 tty flags 0x985 device sio9 at isa? port 0x268 tty flags 0x985 irq 5 vector siointr options COM_MULTIPORT I have a 2-port 16550 board as well installed as well, but I had to give up one of its ports because I had to use IRQ5 for the shared interrupt. You will likely need to adjust the flags parameter as described in the sio man page to set a different master port number. Hope this helps. Let me know if you need further information. Regards, ../fam -- Frank A. Mandarino fam@risca.com 60 F1 97 67 FB B9 9D 75 F8 C4 FA 9E AF 2F 04 FE To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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