Measurement-computing Personal488 rev.3.0 For DOS & Windows 3.Xi Uživatelský manuál Strana 309

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15A. Driver488/DRV Commands III. COMMAND REFERENCES - 15. Command References
III-294 Personal488 Users Manual, Rev. 3.0
FINISH
SYNTAX
FINISH
RESPONSE
None
MODE
CA
BUS STATES
ATN
SEE ALSO
RESUME, PASS CONTROL
EXAMPLE
PRINT#1, FINISH
The
FINISH
command asserts
ATN
and releases any pending holdoffs after a
RESUME
function is called
with the monitor flag set.
FINISH
everything necessary for Driver488 to be ready for the next
operation.
HELLO
SYNTAX
HELLO
RESPONSE
Driver488 Revision X.X (C)199X IOtech, Inc.
MODE
Any
BUS STATES
None
SEE ALSO
Status; OpenName, GetError (Sub-Chapter 15B)
EXAMPLE
PRINT#1,"HELLO"
INPUT#2,A$
PRINT A$
Get the HELLO response and display it.
The
HELLO
command is used to verify communication with Driver488, and to read the software
revision number. When the command is sent, Driver488 returns a string similar to the following:
Driver488 Revision X.X (C)199X IOtech, Inc.
where
X
is the appropriate revision or year number.
INT LEVEL
SYNTAX
INT LEVEL [channel|NONE]
channel
is a valid interrupt channel.
RESPONSE
None
MODE
Any
BUS STATES
None
SEE ALSO
DMA CHANNEL, TIME OUT
EXAMPLES
PRINT#1, INT LEVEL 3"
The
INT LEVEL
command specifies the hardware interrupt level that is used by the I/O adapter.
Driver488 uses hardware interrupts, if available, to improve the efficiency of I/O adapter control and
communication. The interrupt level is specified by an integer in the range
2
through
15
, where channel
availability within this range is determined by the system bus type and the adapter type. The interrupt
level value must match the hardware settings on the I/O adapter card.
IO ADDRESS
SYNTAX
IO ADDRESS[io-addr]
ioaddr
is the I/O base address to set.
RESPONSE
None
MODE
Any
BUS STATES
None
SEE ALSO
INT LEVEL, DMA CHANNEL, TIME OUT
EXAMPLES
PRINT#1,"IOADDRESS &H02E1"
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