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230 Chapter 8

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IBASIC Controller

Interfacing to the IBASIC Controller using Serial Ports

Interfacing to the IBASIC Controller using

Serial Ports

This section describes how to interconnect the Test Set to an external

PC or terminal using the Test Set’s serial I/O ports. Program

development methods #2 and #3 use PC’s or terminals connected to the

Test Set through the Test Set’s serial I/O ports. To determine which

programming environment best fits your application, refer to “Choosing

Your Development Method” on page 241.

Test Set Serial Port Configuration

To prepare for IBASIC program development, the Test Set must first be

configured to operate with a PC or terminal.

This includes,

• Hardware

• Cables

• Screens - I/O CONFIGURE and TESTS (IBASIC Controller)

There are three independently controllable serial interfaces in the Test

Set, each using a 3-wire transmit/receive/ground implementation of the

RS232 standard. The IBASIC controller can send and receive data from

any of these ports by using its assigned select code.

Serial Port Information

The Test Set’s RS232 ports are DB-9 connectors. The ports are wired as

data terminal equipment (DTE). See Figure 8-3 and Table 8-1 on page

231.

Serial Port 9 Serial Port 9 is used for developing and editing IBASIC

programs since it has direct access to the IBASIC Command Line field.

It can also be used for data I/O from an IBASIC program. Settings can

be changed from the I/O CONFIGURE screen, using IBASIC commands

executed from the IBASIC Command Line field, or using IBASIC

commands executed from an IBASIC program. If simultaneous multiple

serial I/O is not a requirement, then use only serial port 9 because it

can directly access the IBASIC Command Line field.

Serial Ports 10 and 11 Serial Ports 10 and 11 are primarily used for

data I/O from an IBASIC program to a device-under-test- (DUT).

Settings can be changed using IBASIC commands executed from the

IBASIC Command Line field, or using IBASIC commands executed from

an IBASIC program but not from the I/O CONFIGURE screen. Serial

Port 10 can be connected to a serial printer for generating program

listings or as the destination printer for the program.

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Agilent Technologies 8935 Series Manual de usuario Pagina 230