mgetty & external sportster
I have an internal modem(not sure what brand) that works fine, but i want
to switch to an external incase the modem needs a hard reset we dont have
to shut the machine down.
Its been sooo many years since i used an external modem so im kinda rusty.
sofar, i got it to communicate with the sportster (both minicom and
mgetty) i can get minicom to establish a terminal connection and transfer
a file(by connecting with another computer and hitting 'ATA' when i saw
the 'RING') the file transferred fine so i assume the modem is good. but
when mgetty tries to answer i get this:
01/03 10:50:45 yS0 waiting for line to clear (VTIME), read: [0d][0a]
01/03 10:50:46 yS0 removing lock file
01/03 10:50:46 yS0 waiting...
01/03 10:50:46 yS0 select returned 1
01/03 10:50:46 yS0 checking lockfiles, locking the line
01/03 10:50:46 yS0 makelock(ttyS0) called
01/03 10:50:46 yS0 do_makelock: lock='/var/lock/LCK..ttyS0'
01/03 10:50:46 yS0 lock made
01/03 10:50:46 yS0 wfr: waiting for ``RING''
01/03 10:50:46 yS0
got: x[fe][00][80]x[00][ff][80][80][f8]x[e0][80][80][80][f8][00]x[fe][00][80]x[00][ff]x[fe][00][80]x[00][ff][80][80][f8]x[e0][80][80][80][f8][00]x[fe][00][80]x[00][ff]
01/03 10:50:56 yS0 mdm_read_byte: read returned -1: Interrupted system
call
01/03 10:50:56 yS0 wfr: timeout waiting for RING
01/03 10:50:56 yS0 wfr: rc=-1, drn=0
01/03 10:50:56 yS0 huh? Junk on the line?
01/03 10:50:56 yS0 removing lock file
and mgetty clearly can communicate with the modem :
01/03 11:33:23 yS0 mgetty: experimental test release 1.1.18-Sep11
01/03 11:33:23 yS0 check for lockfiles
01/03 11:33:23 yS0 checklock: stat failed, no file
01/03 11:33:23 yS0 locking the line
01/03 11:33:23 yS0 makelock(ttyS0) called
01/03 11:33:23 yS0 do_makelock: lock='/var/lock/LCK..ttyS0'
01/03 11:33:23 yS0 lock made
01/03 11:33:24 yS0 tio_get_rs232_lines: status: RTS CTS DSR DTR
01/03 11:33:24 yS0 lowering DTR to reset Modem
01/03 11:33:24 yS0 tss: set speed to 38400 (017)
01/03 11:33:24 yS0 tio_set_flow_control( HARD )
01/03 11:33:24 yS0 waiting for line to clear (VTIME), read:
01/03 11:33:24 yS0 send: ATZ[0d]
01/03 11:33:24 yS0 waiting for ``OK''
01/03 11:33:24 yS0 got: ATZ[0d]
01/03 11:33:24 yS0 CND: ATZ[0d][0a]OK ** found **
01/03 11:33:24 yS0 send: [0d]
01/03 11:33:24 yS0 waiting for line to clear (VTIME), read: [0d][0a][0d]
01/03 11:33:25 yS0 removing lock file
01/03 11:33:25 yS0 waiting...
i've been going through documentation on the modem and on the AT command
set, but so far this is as far as i've gotten. looks like those
[0d][0a][0d] are escape codes? that could be screwing the modem up. im not
sure of the modem's model# but it is a 28.8 sportster external, it has a
bunch of dip switches on it:
1 On - data terminal ready normal **SET**
off - data terminal ready override
2 Up - verbal result codes **SET**
down - numeric result codes
3 Up - supress result codes
down - display result codes **SET**
4 up - echo offline commands **SET**
down - no echo, offline commands
5 up - auto answer on first ring, or higher if specified in NVRAM
down - auto answer off **SET** (i have tried both ways with same
results)
6 up - carrier detect normal **SET**
down - carrier detect override
7 up - load NVRAM defaults **SET**
down - load factory defaults
8 up - dumb mode
down - smart mode **SET** (tried both ways, dumb mode the modem does not
respond at all)
any help would be greatly appreciated!
thanks!@!
nate
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