Measurement-computing TempBook rev.3.0 Bedienungsanleitung PDF herunterladen (Seite 68)

9-8 tbkCommand Reference (

Standard

API) TempBook User’s Manual

tbkInit

DLL Function

int tbkInit(uchar lptPort, uchar lptIntr);

C

tbkInit(unsigned int lptPort, unsigned char lptIntr);

QuickBASIC

BtbkInit% (ByVal lptPort%, ByVal lptIntr%)

Visual Basic

VBtbkInit% (lptPort%, lptIntr%)

Turbo Pascal

tbkInit( lptPort:byte; lptIntr:byte ):integer;

Parameters

unchar lptIntr The LPT interrupt level (7 for LPT1)

uchar lptPort The LPT port number (See table below for definitions.)

Description Value

LPT1 0x00

LPT2 0x01

LPT3 0x02

LPT4 0x03

Returns

TerrNotOnLine

- No communication with TempBook

TerrBadChannel

- Invalid LPT channel

TerrNoTempBook

- No TempBook/66detected

TerrNoError

- No error

See Also

tbkSelectPort, tbkClose

Program References

None

tbkInit

is used to perform multiple functions: initialize subroutine library variables, establish

communications with a TempBook unit, reset the TempBook hardware to power-on conditions, and

select the TempBook as the current TempBook.

tbkInit

can be called to reinitialize the

TempBook only after the

tbkClose

command is called to terminate communications with the

TempBook.

tbkInit

will perform the following tasks:

•

Stop any current acquisition

•

Set the scan group to channel 1 with a gain of 1

•

Set the pacer clock to 100 kHz

•

Reset the counter/timers

Note:

tbkInit

must be called before any other TempBook function

tbkRd

DLL Function

int tbkRd(uint chan, uint *sample, uchar gain);

C

tbkRd(unsigned chan, unsigned *sample, unsigned char gain);

QuickBASIC

BtbkRd% (ByVal chan%, sample%, ByVal gain%)

Visual Basic

VBtbkRd% (chan%, sample%, gain%)

Turbo Pascal

tbkRd( chan:word; sample:WordP; gain:byte ):integer;

Parameters

uint chan

A single channel number (see table at end of chapter for valid values).

unit *sample

A pointer to a value where an A/D sample is stored

unchar gain

The channel gain (see table at end of chapter for valid values)

Returns

TerrFIFOFull

- Buffer Overrun

TerrInvGain

- Invalid gain

TerrInvChan

- Invalid channel

TerrNoError

- No Error

See Also

tbkRdN, tbkSetMux, tbkSetTrig, tbkSoftTrig, tbkRdFore

Program References

None

tbkAdcRd

is used to take a single reading from the given A/D channel. This function will use a

software trigger to immediately trigger and acquire one sample from the specified A/D channel.

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