Function
Sets the timing of external clock input.
Format
Ret = AioSetAiClockEdge ( Id , AiClockEdge )
Parameters
Id
[ C, C++ : short ] [ Python : ctypes.c_short ]
Specifies the Device ID retrieved from AioInit function.
AiClockEdge
[ C, C++ : short ] [ Python : ctypes.c_short ]
Sets the timing of external input from the following range.
0 |
External input falling edge |
1 |
External input rising edge |
Return value
Ret [ C, C++ : long ] [ Python : ctypes.c_long ]
Return values |
Content |
0 |
Normality completion |
7 |
Execute AioResetDevice function because the device has recovered from standby mode |
10001 |
Invalid
Id was specified |
10002 |
AIO
driver can't be called |
12310 |
The value of AiClockEdge is outside the designated range of the function |
20001 |
This function can't be used by this device |
20002 |
Can
not use while by another device works |
20003 |
Can
not use because another process is using the device |
Initial value
External input falling edge is used for all devices. *
Remarks
If the external clock is set by AioSetAiClockType
function, it is possible to set external trigger falling edge or rising
edge.
When internal clock is being used, the setting by this function is invalid.
This function cannot be used on devices without
the analog input function.
If the device is in operation, the function cannot be performed.
Specifications based on devices
AI-1204Z-PE |
Usable AiClockEdge is 0 or 1. |
AI-1664UG-PE |
Usable AiClockEdge is 0 or 1. |
AIO-160802L-LPE |
Usable AiClockEdge is 0 or 1. * |
AI-1616L-LPE |
Usable AiClockEdge is 0 or 1. * |
AD12-16(PCI)EV |
AiClockEdge = 0 is fixed |
AI-1608AY-USB |
Usable AiClockEdge is 0 or 1. |
AIO-163202FX-USB |
Usable AiClockEdge is 0 or 1. |
AI-1664LAX-USB |
Usable AiClockEdge is 0 or 1. |
AIO-121602LN-USB |
Usable AiClockEdge is 0 or 1. |
AI-1608VIN-USB |
Usable AiClockEdge is 0 or 1. |
AIO-16256256-DEMO |
Usable AiClockEdge is 0 or 1. |
Remark
* in case of using ADA16-8/2(LPCI)L, and
AD16-16(LPCI)L
In these devices, whether AioSetAiClockEdge function can be used or not
depends on manufacturer's serial version.
This function returns 20001 error as unsupported version of hardware is
being used.
Example
Uses the external input rising edge as the clock.
C, C++ |
long
Ret; |
Python |
Ret
= ctypes.c_long() |
See also
AioGetAiClockEdge AioSetAiClockType