Measurement Computing Personal488 rev.3.0 For DOS & Windows 3.Xi - Manual (Page 339)

15B. Driver488/SUB, W31, W95, & WNT III. COMMAND REFERENCES - 15. Command References
III-324 Personal488 User’s Manual, Rev. 3.0
Driver488 provides additional EnterI routines that are short form versions of the EnterXI function.
The additional EnterI functions are: EnterI , EnterNI , EnterMoreI , and EnterNMoreI . These
functions are discussed in detail below:
EnterNI
SYNTAX EnterNI(ByVal devHandle%,data%,By Val count& ) As Long
REMARKS EnterNI is equivalent to the following call to EnterXI :
EnterXI(devHandle%,data%,count&, 1, 0, 0, 0)
The EnterNI function passes the device handle, the pointer to the data buffer, and the size of the data
buffer to the EnterXI function. It specifies forceAddr% is TRUE , causing Driver488 to re-address the
device. The default terminators are chosen by specifying a 0 pointer as the term parameter.
Asynchronous transfer is turned off by sending 0 for the async% parameter, and the completion status
value is ignored by sending 0 for the compStat% parameter.
EnterNMoreI
SYNTAX EnterNMoreI(ByVal devHandle%,data%,ByVal count&)As Long
REMARKS EnterNMoreI is equivalent to the following call to EnterXI :
EnterXI(devHandle%,data%,count&,0,0,0,0);
The EnterNMoreI function passes the device handle, the pointer to the data buffer, and the size of the
data buffer to the EnterXI function. It specifies forceAddr% is FALSE ; therefore, Driver488 does not
address the device if it is the same device as previously used. The default terminators are chosen by
specifying a
0 as the term parameter. Asynchronous transfer is turned off by sending 0 for the async%
parameter, and the completion status value is ignored by sending 0 for the compStat% parameter.
Note: All forms of the EnterI commands (except EnterXI ) use EOI as the only terminator. Also,
EnterI and EnterMoreI must be passed to the entire array (i.e. intarray() , not the
starting location: intarray (0) ).
The following table describes the differences between the various forms of EnterI . It outlines the
variables passed to each function and how many bytes the functions read.
EnterI Function Reads Until Variable
EnterXI (ADC,IResp (0),1000,1,Term,1,1) n bytes or
terminators
Pass starting location
EnterI (ADC, IResp())
EnterMoreI (ADC, IResp ()) Array full or EOI Pass entire array
EnterNI (ADC< IResp (0), 1000)
EnterNMoreI (ADC, IResp (0), 1000) n bytes or EOI Pass starting location
where: SResp is String * 1000 , and IResp(1000) is integer .