was@gdwb.oz.au (Warren Stokes) (10/26/90)
RISC/os. This requires hardware flow control (CTS/RTS) to be set on the port. I cannot see how this can be done. The only thing I have tried is to set the line -CLOCAL to give it modem control. This did not seem to be successful. Can anyone help? Warren Stokes was@gdwb.oz.au Geelong and District Water Board Expires: Sender: Followup-To: Distribution: world Organization: Geelong & District Water Board, Australia Keywords:
was@gdwb.oz.au (Warren Stokes) (10/26/90)
This is a repost. I am trying to get a MNP type modem working on a MIPS box running RISC/os. This requires hardware flow control to be set on the MIPS port. The only flag I could see worth setting was the -CLOCAL to set modem control. This did not seem to give me CTS/RTS flow control. Can anyone help? Warren Stokes was@gdwb.oz.au Geelong and District Water Board, Australia
rogerk@mips.COM (Roger B.A. Klorese) (10/27/90)
In article <540@rome.gdwb.oz.au> was@gdwb.oz.au (Warren Stokes) writes: >This is a repost. I am trying to get a MNP type modem working on >a MIPS box running RISC/os. This requires hardware flow control >to be set on the MIPS port. The only flag I could see worth >setting was the -CLOCAL to set modem control. This did not seem >to give me CTS/RTS flow control. Can anyone help? Hardware flow control (rts/cts) is available on some ports on some systems, from release 4.50 on (and release 4.02 for M/1000, M/120 and M/2000 systems). Check the appropriate release notes for availability of this capability, and use "stty rtscts". -- ROGER B.A. KLORESE MIPS Computer Systems, Inc. MS 6-05 930 DeGuigne Dr. Sunnyvale, CA 94086 +1 408 524-7421 rogerk@mips.COM {ames,decwrl,pyramid}!mips!rogerk "I'm the NLA" "The problem with the rat race is even if you win you're still a rat." - Tomlin
brudley@mips.COM (Brett Rudley) (10/30/90)
In article <540@rome.gdwb.oz.au> was@gdwb.oz.au (Warren Stokes) writes: >This is a repost. I am trying to get a MNP type modem working on >a MIPS box running RISC/os. This requires hardware flow control >to be set on the MIPS port. The only flag I could see worth >setting was the -CLOCAL to set modem control. This did not seem >to give me CTS/RTS flow control. Can anyone help? > >Warren Stokes >was@gdwb.oz.au >Geelong and District Water Board, Australia From the 4.50 STTY(1-SysV) man page: rtscts (-rtscts) enable (disable) RTS/CTS handshaking. RTS is raised when input can be accepted, lowered when input queue is nearly full. Output is stopped when CTS is lowered and resumed when CTS is high. Supported only if the controller sup- ports this facility. If the high order bit of the minor number of the port you are using is on, than the default settings for that port will be -CLOCAL and RTSCTS. That is to say crw--w--w- 1 root bin 0,128 Aug 14 15:45 /dev/ttym0 crw--w--w- 1 root bin 0, 0 Aug 14 15:45 /dev/tty0 are the same except ttym0 will be -clocal and rtscts by default and tty0 will be clocal and -rtscts by default. The controllers that support this facility are: Digiboard ports on a M120/RS3240/Magnum tty0 and tty1 on a Magnum or RB3125 The other serial controllers do not recognize CTS. This is available in 4.50 and later. -- Brett Rudley {ames,decwrl,pyramid,prls}!mips!brudley MIPS Computer Systems - or - 930 Arques Avenue brudley@mips.com Sunnyvale, CA 94086 (408)524-8151