Measurement-computing Analyzer488 Manual de usuario descargar pdf (Pagina 123)

Section 4 Serial Controller

4.29

data

are the management line and data line status (two hex bytes

for each event) . Data is dependent on the contents of the

record memory.

checksum

is the one's complement of

record

length

plus

address

plus all

data

bytes.

The last line sent is the S9 record which is

always: S9030000FC

Format of

data

bytes is:

Byte 1 Byte 2

(bit positions) (bit positions)

(Control and Status Lines) (Data Lines)

8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1

REN IFC SRQ EOI BERR VALIDTRIG ATN D8 D1

If a bus management or data line is asserted, its corresponding bit

will be true (1).

MODE Any

BUS STATES None

QUERY None

RESPONSE

EXAMPLES

PRINT#1,"ERASE"

Clear the record memory.

20 PRINT#1,"CONTROLLER ON"

Select High level control

30 PRINT#1,"SET TRIGGER OFF"

Do not use triggering

40 PRINT#1,"RECORD ON"

Start recording bus events

50 PRINT#1,"OUTPUT 20;W3X"

Send the command

W3X

60 PRINT#1,"RECORD OFF" Stop recording bus events

70 PRINT#1,"DUMP 0 TO 8"

Dump the first 9 locations

80 IF LOC(1) THEN PRINT INPUT$(LOC(1),1);

90 GOTO 80

The following response will be returned:

S1150000854A853F853484778433847884840D940A0000C1

S9030000FC

1 2 ... 118 119 120 121 122 123 124 125 126 127 128 ... 280 281

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Measurement-computing Analyzer488 Manual de usuario Pagina 123

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