Timewave DSP-232, Operating Manual

Page: 41 / 271

Chapter 4 Terminal Interfacing
“ n ” 0 to 2 specifies how your DSP sends characters to your terminal.
CASEDISP allows you to set the case of the characters your DSP sends to your terminal; it offers three possible
modes:
CASEDISP 0
”As is” - characters’ case isn’t changed.
CASEDISP 1 ”lower” - all characters are displayed in lowercase only.
CASEDISP 2
”UPPER” - all characters are displayed in uppercase only.
CASEDISP
has no effect on transmitted data from your DSP.
CMdtime n Default: 10 (1000 msec.)
Host: CQ
“
n ” 0 to 250specifies
TRANSPARENT
mode time-out value in 100-mS intervals. If “ n ” is 0 (zero), exit from
the Transparent mode requires sending the
BREAK
signal or interruption of power to the DSP.
CMDTIME
sets the time-out value in the Transparent mode. A guard time of “ n ” x 10 seconds allows escape to the
Command mode from the Transparent mode while permitting any character to be sent as data.
The same Command mode entry character
COMMAND (default CTRL-C ) is used to exit the Transparent mode,
although the procedure is different than from Converse mode. Three Command mode entry characters must be
entered less than “
n ” x 10 seconds apart—with no intervening characters—after a delay of “ n ” x 10 seconds
following the last characters typed.
The following diagram illustrates this timing:
Last First Second Third DSP now
Terminal Command Command Command in Command
Input Character Character Character mode
| Entry Entry Entry |
| | | | |
| | | | |
| <longer than n > | <shorter than n > | <shorter than n > | <—— n ——> |
COMmand
n Default: $03 (
CTRL-C
)
Host: CN
“
n ” 0 to $7F (0 to 127 decimal) specifies an ASCII character code.
COMMAND changes the Command mode entry character. Type the COMMAND character to enter the Command
mode from either the Converse or Transparent mode. After you enter the COMMAND character, the Command
prompt (
cmd: ) should appear, indicating successful entry into the Command mode. See
CMDTIME
.
CONVerse
( or
K
) Immediate Command
Host: Not Supported
CONVERSE is an immediate command that causes the DSP to switch from the Command mode to the Converse
mode. The letter
K
may also be used.
Once the DSP is in the Converse mode, all the characters typed into the keyboard are transmitted by your radio. To
return the DSP to the Command mode, type the Command mode entry character, ( CTRL-C ).
CUstom
n Default: $0A15
Host: Cu
4-8 September, 05