Measurement-computing Micro488/p Manuel d'utilisateur télécharger pdf (Page 35)

Command Descriptions

09-27-02

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SP SERIAL POLL

The SERIAL POLL command performs a Serial Poll of the bus device specified and

responds with a number from 0 to 255 representing the decimal equivalent of the eight-bit

device response. If rsv (DIO7, decimal value 64) is set, then that device is signaling that it

requires service. Serial Polls are normally performed in response to assertion of the Service

Request (SRQ) bus signal by some bus device.

SYNTAX SP; addr

RESPONSE 0 to 255

BUS STATES ATN, UNL, TAG, SPE, *ATN, data, ATN, SPD, UNT

EXAMPLES PRINT#1,"SP 16" Serial Poll device 16.

INPUT#1,SPSTAT Receive the Spoll status.

TC SERIAL TERMINATOR

The SERIAL TERMINATOR command sets the end-of-line terminators for input from the

serial host. All input from the serial host must be terminated by the selected terminator.

During INPUT, the Micro488/p takes the data it receives from the bus device until it detects

the LF of other optionally specified input terminating condition. It strips all CR and LF from

the input data and appends the serial output terminator CR before sending it to the serial

host. The available terminators are:

1 - LF

2 - CR

3 - LF-CR

4 - CR-LF

SYNTAX TC;n

n is one of the available terminator types.

RESPONSE None

BUS STATES None

EXAMPLES PRINT#1,"TC;2" Select CR as the serial output

terminator.

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Measurement-computing Micro488/p Manuel d'utilisateur Page 35