GtDio6xCalibrateDomainChannelsDeskew

Applies To

GX5961, GX5964

Purpose

Calibrates and adjust deskew of all the channels in the domain.

Syntax

GtDio6xCalibrateDomainChannelsDeskew (nHandle, nMode, pnStatus)

Parameters

Name
Type
Comments
nHandle
SHORT
Session identifier:

●     Board handle is used when communicating with the hardware. The Board handle session identifier is returned by calling GtDio6xInitialize or GtDio6xSetupInitialization.

nMode
SHORT
Not used, pass as 0.
pnStatus
PSHORT
Returned status: 0 on success, negative value on failure.

Comments

This function is used to calibrate and adjust deskew all channels in the domain. Whenever a domain is connected to a UUT, calling this function will adjust the delay of all the channels in the domain in order to minimize the skew between the channels. The user needs to disconnect the UUT and leave the cables leading to the UUT open. After the function is done, the UUT connections will need to be reconnected.

Example

The following example runs the deskew calibration and adjustment of all the channels in the domain, and returns all the skew delay parameters of channel 0:

 

SHORT nStatus;

DOUBLE dDelay;

 

GtDio6xCalibrateDomainChannelsDeskew (nHandle, 0, &nStatus);

GtDio6xChannelSetSkewDelay(nHandle, 0, GTDIO6X_SKEW_DELAY_DRIVE, GTDIO6X_SKEW_PROPAGATION_DELAY, &dDelay, &nStatus);

GtDio6xChannelGetSkewDelay(nHandle, 0, GTDIO6X_SKEW_DELAY_DRIVE, GTDIO6X_SKEW_DELAY_FALLING_EDGE_ONLY, &dDelay, &nStatus);

 

GtDio6xChannelSetSkewDelay(nHandle, 0, GTDIO6X_SKEW_DELAY_SENSE, GTDIO6X_SKEW_PROPAGATION_DELAY, &dDelay, &nStatus);

GtDio6xChannelGetSkewDelay(nHandle, 0, GTDIO6X_SKEW_DELAY_SENSE, GTDIO6X_SKEW_DELAY_FALLING_EDGE_ONLY, &dDelay, &nStatus);

 

See Also

GtDio6xChannelSetSkewDelay, GtDio6xChannelGetSkewDelay, GtDio6xGetErrorString