HP-UX

NAME

viClear − Performs an IEEE 488.1 clear on a device. 

SYNOPSIS

viClear(ViSession vi);

Description

 
This function performs an IEEE 488.1-style clear of the device. VXI uses the Word Serial Clear command, and GPIB uses the Selective Device Clear command.
 

Parameters

vi An input parameter. Unique logical identifier to a session. 
 

Return Values

 
This is the functional return status.  It returns either a completion code or an error code as follows.
 
 

VI_SUCCESS Operation completed successfully. 
 
 

VI_ERROR_INV_SESSION VI_ERROR_INV_OBJECT The given session or object reference is invalid (both are the same value). 
 

VI_ERROR_NSUP_OPER The given vi does not support this function. 
 

VI_ERROR_TMO Timeout expired before function completed. 
 

VI_ERROR_RAW_WR_PROT_VIOL Violation of raw write protocol occurred during transfer. 
 

VI_ERROR_RAW_RD_PROT_VIOL Violation of raw read protocol occurred during transfer. 
 

VI_ERROR_BERR Bus error occurred during transfer. 
 

VI_ERROR_NCIC The interface associated with the given vi is not currently the controller in charge. 
 

VI_ERROR_NLISTENERS No Listeners condition is detected (both NRFD and NDAC are deasserted). 
 

AUTHOR

viClear was developed by HP
 

Hewlett-Packard Comapny  —  September 29, 1999