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Ctrl>a - escape, H - hardware handshake – Measurement Computing Micro488/p User Manual

Page 30

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3-12

09-27-02

Command Descriptions

A

ESCAPE

The system command ESCAPE unlocks the Micro488/p from an inappropriate command,
such as a command requesting data from a nonexistent device.

When the ESCAPE command is received, the serial handshake line (RTS) is un-asserted. It
is asserted when the Micro488/p is capable of buffering commands. If XON/XOFF
handshake is selected, the software handshake state is not modified.

Issuing the ESCAPE command clears the serial input (pending commands) and causes the
Micro488/p to wait for new commands.

SYNTAX

A or CHR$(1)

RESPONSE

None

BUS STATES

None

EXAMPLE

PRINT #1, CHR$(1)

H

HARDWARE HANDSHAKE

The system command HARDWARE HANDSHAKE enables or disables hardware
(CTS/RTS) handshake.

SYNTAX

H;n

n = 0, disable hardware handshake.
n = 1, enable hardware handshake.

RESPONSE

None

BUS STATES

None

EXAMPLE

PRINT#1,"H;1"

Enable hardware handshake.