Measurement Computing TempBook rev.3.0 - Manual (Page 69)

TempBook User’s Manual tbkCommand Reference (Standard API) 9-9
tbkRdBit
DLL Function int tbkRdBit(uchar bitNum, uchar *bitVal);
C tbkRdBit(unsigned char bitNum, unsigned char *bitVal);
QuickBASIC BtbkRdBit% (ByVal bitNum%, bitVal%)
Visual Basic VBtbkRdBit% (bitNum%, bitVal%)
Turbo Pascal tbkRdBit( bitNum:byte; bitVal:ByteP ):integer;
Parameters
uchar bitNum The bit number of the specified digital I/O port to read
Valid values: 0 - 7
uchar *bitVal A variable to hold the value of the specified bit (non-zero if asserted, 0 if unasserted)
Returns TerrInvBitNum - Invalid bit number
TerrNoError - No error
See Also tbkWtByte, tbkRdByte, tbkWtBit
Program References None
tbkRdBit reads the state of a single digital input bit.
tbkRdByte
DLL Function int tbkRdByte(uchar *byteVal);
C tbkRdByte(unsigned char *byteVal);
QuickBASIC BtbkRdByte%(digIn%)
Visual Basic VBtbkRdByte% (digIn%)
Turbo Pascal tbkRdByte( byteVal:DataP ):integer;
Parameters
uchar *byteVal A variable to hold the value of the digital input byte
Returns TerrNoError - No error
See Also tbkWtByte, tbkWtBit, tbkRdBit
Program References None
tbkRdByte reads the 8-bit digital input byte.
tbkRdCntr0
DLL Function int tbkRdCntr0(uint *cntr0, uchar latch);
C tbkRdCntr0(unsigned _far *cntr0, unsigned char mode);
QuickBASIC BtbkRdCntr0% (cntr0%, ByVal latch%)
Visual Basic VBtbkRdCntr0% (cntr0%, latch%)
Turbo Pascal tbkRdCntr0( cntr0:WordP; mode:Byte ):integer;
Parameters
uint *cntr0 The value read back from the Counter 0 hold register
Valid values: 0 - 65535
uchar latch If latch is non-zero, the count register will be latched into the hold register before reading.
If latch is zero, the count register will be read directly.
Direct reading should only be performed when no clock pulses are present.
Returns TerrNoError - No error
See Also tbkConfCntr0, tbkWtCntr0
Program References None
tbkRdCntr0 reads the hold register of counter 0. This function is normally used with mode 0 of
counter 0 (see tbkConfCntr0) to read the current count value.