AioSetAiClockEdge

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 Use the Id retrieved from AioInit to specify the Id in this function.
10002	AIO driver can't be called At first, perform AioInit function.
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 To use this function, analog input operation must be stopped.
20003	Can not use because another process is using the device When another process is using the device, all functions except for those that support multi-process can not be performed.

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 AIO-163202G-PE AIO-163202UG-PE AIO-123202G-PE AIO-123202UG-PE AIO-163202F-PE ADA16-32/2(PCI)F	Usable AiClockEdge is 0 or 1.
AIO-160802L-LPE ADA16-8/2(LPCI)L ADAI16-8/2(LPCI)L AIO-160802LI-PE	Usable AiClockEdge is 0 or 1. *
AI-1616L-LPE AD16-64(LPCI)LA AD16-16(LPCI)L ADI16-16(LPCI)L AI-1616LI-PE AI-1664LA-LPE	Usable AiClockEdge is 0 or 1. *
AD12-16(PCI)EV AD12-16U(PCI)EV AD16-16(PCI)EV AD16-16U(PCI)EV AD12-64(PCI) AD12-16(PCI) AIO-121601E3-PE AIO-121601UE3-PE AIO-161601E3-PE AIO-161601UE3-PE AI-1216I2-PCI	AiClockEdge = 0 is fixed
AI-1608AY-USB AIO-160802AY-USB AI-1608GY-USB AIO-160802GY-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 AIO-120802LN-USB	Usable AiClockEdge is 0 or 1.
AI-1608VIN-USB AI-1608AIN-USB AI-1608VIN-ETH AI-1608AIN-ETH	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; Ret = AioSetAiClockEdge ( Id , 1 );
Python	Ret = ctypes.c_long() Ret.value = caio.AioSetAiClockEdge ( Id , 1 )