Measurement Computing Personal488 rev.3.0 - Manual (Page 124)

Personal488 for Windows 95/98/Me/NT/2000 04-10-01 API Reference 6-56
Term
Syntax INT WINAPI Term(DevHandleT devHandle, TermT *term,
DWORD termFlag);
devHandle refers to either an interface or an external device.
term is a pointer to the terminator structure.
termFlag can be either TERMIN , TERMOUT , or TERMIN+TERMOUT , specifying whether
input, output, or both are being set.
Returns -1 if error
Bus States None
Example term.EOI = TRUE;
term.nChar = 1;
term.EightBits = TRUE;
term.termChar[0] = 13;
errorcode = Term(ieee,&term,TERMIN);
See Also TermQuery, EnterX, OutputX, Status
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.