NuDAQ PCI-8554, Руководство пользователя

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C/C++ Libraries
5.10 _8554_SET_cntCLK
@ Description
To select 8254 counter #1 ~ #10 clock source.( Clock source of
counter #11 is 8MHz and clock source of counter #12 is from
COUT11, both clock source 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 select board
cntNo: Counter / Timer number. This value must be
between 1 and 10.
clkMODE: Select clock source.
“
0
”
select ECLKn ,
“
1
”
select
COUTn-1 ,
“
2
”
select CK1 ,
“
3
”
select COUT10 .
@ Return Value
ERR_NoError
ERR_BoardNoInit
ERR_InvalidCounterNo: cntNo is not in the range of 1 ~ 1 2
ERR_InvalidMode: clkMODE is not in the range of 1 ~ 3