Measurement-computing GPIB-488 Uživatelský manuál stáhnout pdf (Strana 84)

Chapter 4 GPIB 488.2 Library Reference

Programming Reference Manual 4-16 GPIB-488

ReceiveSetup

Address a GPIB Interface Board as a Listener and a GPIB device as a Talker, in preparation

for data transmission.

Syntax

C ReceiveSetup(int board, short address)

Parameters

board is an integer which identifies the GPIB board to be used for this operation. In most

applications, this value is 0.

address is an integer representing the GPIB address of the device to send the data.

Returns

ibsta will contain a 16-bit status word as described in Appendix B, IBSTA.

iberr will contain an error code, if an error occurred.

Usage Notes

In order to actually transfer any data, you must call a routine such as RcvRespMsg following

this routine.

This routine is useful in instances where you need to transfer multiple blocks of data between

devices. For example, you could initially address the devices using

ReceiveSetup, then

make multiple calls of

RcvRespMsg to transfer the data.

For typical cases,

Receive is simpler to use, since it takes care of both the setup and the data

transfer.

Example

This example instructs a GPIB device at address 5 to send data to GPIB Board 0. Up to 50

bytes of data is received and then stored in a string. The message is terminated with an EOI.

C char message[100];

ReceiveSetup(0, 5);

RcvRespMsg (0, message, 50, STOPend);

1 2 ... 79 80 81 82 83 84 85 86 87 88 89 ... 115 116

Žádné komentáře

Measurement-computing GPIB-488 Uživatelský manuál Strana 84