ADLINK PCI-8554 - Manual (Page 58)

48 • C/C++ Libraries
5.10 _8554_SET_cntCLK
@ Description
This function is used to select the clock source for counters 1~10
(Clock source for counter 11 is 8MHz and clock source of counter
12 is from COUT11, both clock sources are fixed).
@ Syntax
C/C++ (DOS)
U16 _8554_DI (U16 cardNo, U16 cntNo, U16 clkMODE)
C/C++ (Windows 95)
U16 W_8554_DI (U16 cardNo, U16 cntNo, U16 clkMODE)
Visual Basic (Windows 95)
W_8554_SET_cntCLK (ByVal cardNo As Integer, ByVal cntNo
As Integer, ByVal clkMODE As Integer) As Integer
@ Arguments
cardNo: card number to be selected
cntNo: Counter/Timer number. This value must be
between 1 and 10.
clkMODE: Select clock sources:
“0” = ECLKn.
“1” = COUTn-1.
“2” = CK1.
“3” = COUT10.
@ Return Value
ERR_NoError
ERR_BoardNoInit
ERR_InvalidCounterNo: cntNo is not in the range of 1 ~ 12
ERR_InvalidMode: clkMODE is not in the range of 0 ~ 3