Measurement-computing Parallel488 Manuel d'utilisateur télécharger pdf (Page 22)

Section 3 Parallel To IEEE Operation

3.4

By typing the following HPGL command on the keyboard, the plotter

should respond by retrieving its pen, drawing a line and returning the pen.

SP1;PA1000,1000;PD;PA1000,6000;PU;SP0;

3.5 Printer Applications

Most of the information given for plotter applications applies to

applications for interfacing IEEE 488 printers to a parallel host. Some high end

printers have a secondary command setting which must be disabled for the

Parallel488 to control them. The Parallel488 does not use secondary commands

to control IEEE peripherals, such as printers or plotters. Refer to the printer's

instruction manual if the is a question as to whether the printer requires

secondary commands.

3.6 Parallel Interface Description and Timing

As a parallel to IEEE converter, the Parallel488 controls the following

signals (designated as

out

in the following table) and responds to the signals

(designated as

Pin Signal

Direction Description

1 STROBE

in When a low pulse is sent by the parallel

device (>0.5 µs), the Parallel488 reads

the character on the data lines and places

it in the IEEE output buffer.

2 DATA0

in Least significant data bit 0 (high=logic "1")

3 DATA1

in Data bit 1

4 DATA2

in Data bit 2

5 DATA3

in Data bit 3

6 DATA4

in Data bit 4

7 DATA5

in Data bit 5

8 DATA6

in Data bit 6

9 DATA7

in Most significant data bit 7

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 50 51

Pas de commentaire

Measurement-computing Parallel488 Manuel d'utilisateur Page 22