Advantech PCL-848A/B Manual de usuario descargar pdf (Pagina 27)

CHAPTER 3 PROGRAMMING REFERENCE

3.4.7. INIT

Purpose :

This aommand initializes the interface card and sets the relative parameters. It can be

neglected if the parameters used are all default values.

Offset :

INIT%=0

Syntax :

CALL INIT%(IOPORT%,MYADDR%,SETTING%) ----BASIC

CALL ABSOLUTE(IOPORT%,NYADDR%,SETTING%,INIT%)

----HASIC Compiler

Parameter :

IOPORT% - I/O port of NEC7210, from hex 008 to hex 2F8 by increment of

hex 010. The value is the I/O base address plus 8. The default

value is hex 2B8 since the base address (determined by SW1) of

this card is set to hex 2B0 at factory.

MYADDR% - IEEE-488 address of the IEEE-488 interface card. The range-is

from 0 to 30. The default value is 21.

SETTING% - An integer (16 bit) to set the DMA LEVEL, IRQ LEVEL and

other parameters. The default value is 0, i.e., 8ASIC interpreter,

system controller, no IRQ and no DMA.

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Advantech PCL-848A/B Manual de usuario Pagina 27