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3 recording bus events, Bus acg13 od – Measurement Computing Analyzer488 User Manual

Page 59

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Section 3

Front Panel Operation

3.13

3.7.3 Recording Bus Events

Use the same keyboard controller program to record a test

sequence of events on the bus.

SRQ

IFC

REN

ATN

EOI

LOCATION

MESSAGE

Press

[ERASE][ENTER]

:

Erase Memory? Yes

to erase record memory

Press [FAST]

FAST

LED lights

to set bus handshaking to fast.

Press [REC]

REC

and RECORD LED lights

to start recording

SRQ

IFC

REN

ATN

EOI

LOCATION

MESSAGE

00000 SCG20 74

¼

¼

CMD> output 00;test

00008 ACG13 0D

¼

¼

This display means that eight events were recorded. The controller

asserted Attention after the "test" message and ACG13 is the bus
message for the multiline command &h0D (ASCII CR).

Press [REC]

REC

and RECORD LED off

to turn recording off

SRQ

IFC

REN

ATN

EOI

LOCATION

MESSAGE

BUS ACG13 OD

¼

¼

This display shows that the Analyzer488 is again in the bus display

mode, &h0D is on the bus, and the Attention and Remote Enable bus
management lines are asserted.