ADLINK PCI-8554 - Manual (Page 55)

C/C++ Libraries • 45
5.7 _8554_Read_Status
@ Description
User can directly read current counter status with this function.
@ Syntax
C/C++ (DOS)
U16 _8554_Read_Status (U16 cardNo, U16 cntNo, U16 * cntrVal,
U16 *status)
C/C++ (Windows 95)
U16 W_8554_ Read_Status (U16 cardNo, U16 cntNo, U16 * cntrVal,
U16 *status)
Visual Basic (Windows 95)
W_8554_Read_Status (ByVal cardNo As Integer, ByVal cntNo
As Integer, cntrVal As Integer, status As Integer) As
Integer
@ Arguments
cardNo: card number to be selected
cntNo: Counter/Timer number. This value must be
between 1 and 12.
cntrVal: Counter value read back from counter
status: current status read back from counter, refer to
8254’s datasheet for more information
@ Return Value
ERR_NoError, ERR_BoardNoInit
ERR_InvalidCounterNo: if cntNo is not in the range of 1 ~ 12