Aim AMC429, Справочное руководство

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194 Software Library Reference Manual for VME 429
Section 10 – Troubleshooting
Figure 10.1-1 API S/W Library Function / Target S/W Interfaces
Errors can be detected and error messages displayed at various points in the
communication process as shown by the points 1-4. The error message the user
can expect for each of these points is described in the following sections.
Error Reporting by API S/W Library Function - Point 1
Each API S/W Library function is designed to report function call programming errors
to the user via a message box. Each Library function performs parameter validation
and, if an error is detected, generates error return values which are provided within
the error message display box. The error return values are explained for each
function call in its associated section.
Generally, errors reported at point 1 are due to out of range function call parameters.
When the API S/W Library function software detects an error at this point it will return
the error message shown in Figure 10.1-2 to the user and further processing of the
command will be discontinued.
Figure 10.1-2 "ERROR in function" Error Message
ERROR in function
function call: return value is xxxx (associated error
constant definition)
Where:
function call is the function utilized that contains/detected the error
xxxx
is the four digit error code returned by the function call (detailed for each
function call in the associated section in this document)
associated error constant definition
is the constant parameter name associated
with the error code (detailed for each function call in the associated
section in this document)
1
cmd
info cmd
info cmd
info
status
/ACK
status
/ACK
status
/ACK
API Library
S/W
Function
ApiIO
_ApiIO
Target S/W
2
3 4
1