Measurement Computing Personal488 rev.3.0 For DOS & Windows 3.Xi - Manual (Page 365)

15B. Driver488/SUB, W31, W95, & WNT III. COMMAND REFERENCES - 15. Command References
III-350 Personal488 User’s Manual, Rev. 3.0
RETURNS -1 if error
MODE CA
BUS STATES ATN, TAG
SEE ALSO Listen, SendCmd
EXAMPLES errorcode = Talk (ieee, 12, -1);
The Talk command addresses an external device to Talk.
Term
SYNTAX int pascal Term(DevHandleT devHandle, TermT *terminator, int
TermType);
devHandle refers to either an interface or an external device.
terminator is a pointer to the terminator structure.
TermType can be either IN , OUT , or IN+OUT , specifying whether input, output, or
both are being set.
RETURNS -1 if error
MODE Any
BUS STATES None
SEE ALSO Enter, Output, Status, EOL (Sub-Chapter 15A)
EXAMPLE term.EOI = TRUE;
term.nChar = 1;
term.EightBits = TRUE;
term.termChar[0] = 13;
errorcode = Term(ieee,&term,IN);
The Term command sets the end-of-line ( EOL ) terminators for input from, and output to, I/O adapter
devices. These terminators are sent at the end of output data and expected at the end of input data, in
the manner of
CR LF as used with printer data.
During output, Term appends the bus output terminator to the data before sending it to the I/O adapter
device. Conversely, when Driver488 receives the bus input terminator, it recognizes the end of a
transfer and returns the data to the calling application. The terminators never appear in the data
transferred to or from the calling application. The default terminators for both input and output are set
by the startup configuration and are normally
CR LF EOI , which is appropriate for most bus devices.
End-Or-Identify ( EOI ) has a different meaning when it is specified for input than when it is specified
for output. During input, EOI specifies that input is terminated on detection of the EOI bus signal,
regardless of which characters have been received. During output, EOI specifies that the EOI bus
signal is to be asserted during the last byte transferred.
TermQuery
Driver488/W95 only
SYNTAX INT TermQuery(DevHandleT devHandle, TermT *terminator, INT
TermType);
devHandle refers to either an interface or an external device.
terminator is a pointer to the terminator structure.
TermType can be either IN , OUT , or IN+OUT , specifying whether input, output, or
both are being set.
RETURNS -1 if error
MODE Any
BUS STATES None
SEE ALSO Term, Enter, Output, Status, EOL (Sub-Chapter 15A)
EXAMPLE None provided.