Tektronix 372, User Manual, Page: 267 / 364

372ĆBased Programming
372 User Manual
3Ć155
Wait and Suspend
Two type of instructions allow timing of measurements or synchronization
with measurements of another instrument. The WAIT instruction is specified
by time, and the WAITTTL instruction waits until an input signal from the TTL
I/O port is asserted or unasserted.
The PAUSE instruction can also be used to suspend execution of a program
and proceed to the next step while checking the state of program execution.
The suspended program can be resumed by pressing the [START] button
on the front panel.
Register
In the FOR loop counter, the X register is used internally as a loop counter.
The contents of X register can be referred to with &" as shown below. There
can only be one &" in a file name in which the settings or curves are saved
or loaded, or in a subroutine name.
Example:&X, FET&X.DAT, BJT&X.SET, SUB&X, etc.
All instructions and their arguments that can be used with a program are
listed in Table 3Ć49. A summary is shown in Table 3Ć50.
In Table 3Ć50 the following symbols are used.
<> Indicates a defined item.
{} Selectable items are grouped.
| Selects exclusively.
::= Defines left side as right side.
TableĂ3Ć49:ăSummary of the Instruction Set
Function Instructions Descriptions
MAIN, END Control of main routine.
P E
CALL, FUNC, RETURN Control of subroutines.
Program ExecuĆ
tion Control
FOR, ENDFOR, BREAK Loop control.
IF, ELSE, ENDIF Conditional branching control.
PAUSE, WAIT Program interruption, execution
timing control.
EXIT Exit from the program.
Measurement,
Display
SINGLE Perform a measurement.
Display
AUTOSCALE AutoĆscaling of graph.
Instruction Set