Measurement Computing Personal488 rev.3.0 For DOS & Windows 3.Xi - Manual (Page 284)

III. COMMAND REFERENCES - 14. Command Summaries 14B. Driver488/SUB, QuickBASIC
Personal488 User’s Manual, Rev. 3.0 III-269
ioTriggerList% (DevHandles%()) Issue GET to devices in list
ioUnListen% (IntfHandle%) Send the Unlisten (UNL) command
ioUnTalk% (IntfHandle%) Send the Untalk (UNT) command
ioWait% (IntfHandle%) Wait until asynchronous transfer has completed
The Commands
To obtain a more detailed description of the command references for Driver488/SUB, turn to Chapter
15 “Command References” in this Section. The commands are presented in alphabetical order for ease
of use.
Syntax Parameters
Name Type Description
Async% integer Flag to indicate async transfer
Bytes$ string String containing characters to transfer
CompStat% integer Completion status from Driver
Condition% integer Arm/Disarm bit mask
Count& long Long count specifier
Data$ string Buffer used to send or receive data
DevHandle% integer External device handle
DevHandles%() integer array Array of handles
Display% integer Error message display is ON or OFF
DmaChan% integer Hardware DMA channel
ErrHandle% integer Handle that caused error
ErrText$ string Buffer containing error text
Flag% integer ON or OFF specifier
ForceAddr% integer Force address flag
Freq% integer Clock frequency
Handle% integer Either a DevHandle or an IntfHandle
IntLev% integer Hardware Interrupt level
IntfHandle% integer Interface handle
IOAddr% integer I/O base address
Last% integer Terminator on last byte indicator
Length% integer Number of Bytes
LightPen% integer Light Pen emulation is ON or OFF
Limit% integer Max number of listeners
Listener%() integer array Array of FindListener results
Message$ string Buffer used to receive data
Monitor% integer Data monitor ON or OFF
Name$ string Name of external device or DOS device
Ppresponse% integer Configuration byte
Prim% integer IEEE 488 primary address
SPResult%() integer array Array of SPOLL results
Sec% integer IEEE 488 primary address
Spstatus% integer Service request status
StatusVal IeeeStatus Status structure
SysCont% integer System Controller flag for IEEE 488 interface
TermP terms Terms TYPE
TermType% integer Terminator type: TERMIN or TERMOUT
Timeout& integer Timeout value in milliseconds
UntilFlag% integer SpollList operating mode