Date: Fri, 26 Apr 1996 02:39:50 +1000 From: Bruce Evans <bde@zeta.org.au> To: bde@zeta.org.au, ck@toplink.net Cc: hackers@freebsd.org, isp@freebsd.org Subject: Re: Going gaga over Cyclades board Message-ID: <199604251639.CAA31691@godzilla.zeta.org.au>
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>> >we've been trying to wire up a cyclades 1400 based pccom 8 /port serial >> >adapter under FreeBSD 2.1r. >> >> Which model number exactly? Old 8Yo boards have problems on some PCI >It's not a genuine cyclom board. The board is an ISA 8 port (2 x CD1400, >DB25 connectors) from a manufacturer called PCCom. The PC in question >has an asus pentium/tri motherboard. Do you think I should try sticking >the serial card into a plain ISA Mainboard ? The PCI problem is probably unique to the Cyclades board. A 1400-based board is unlikely to work if it doesn't claim compatibility with the Cyclades. Note that the 1400 is a Cirrus chip, not a Cyclades chip. It requires more off-chip support than an 8250..16550, and it isn't as standard, so a 1400-based board is unlikely to use exactly the same bus interface as the Cyclades. One of the Stallion boards uses cd1400's but has its own driver. >Thanks for the tip. This is what pstat gets when I cu to the ports >cuac0 has a modem connected to it cuac1 does not (dangling cable). >I have had the card at irq 12 and irq 15 and at d8000,da000,dc000 all >with the same effect. Characters end up in the output queue but don't >get sent out. > 16 cy lines > LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC > cuac0 0 0 14 1296 256 16 OCcB 0 0 term > cuac1 0 0 7 1296 256 9 OCcB 0 0 term This is exactly what happens when I connect to a Cyclades port that isn't connected to anything. The board must be fairly compatible for you to get as far as open. Other things to try: - look at the interrupt counts using vmstat -i. - open the port in CLOCAL mode so that output should work even when nothing is connected. Then look at the interrupt counts. - attempt to open the dialout port and on a local line with carrier connected. If it gets past open then it must have detected carrier. Bruce
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