Страница 1 мировой engineering стандарты общая спецификация

GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
Variable/Meaning
Values
max_PID_index
This is a constant that is used when indexing through the array of supported PIDs
to determine if a PID is supported. Its value is equal to 1 less than the number of
PIDs supported by the ECU.
constant determined at
compile time
PID_Req_Index
This is a local variable used to index through the array of supported PIDs to
determine if a PID is supported.
0 to max_PID_index
Requested_PID
This is a local variable which is set equal to a specific PID number from the
request message when indexing through the list of requested PIDS to determine
if all requested PIDs are supported.
$0000 to $FFFF
PID_Found
This is a flag used to determine if a requested PID has been found in the list of
supported PIDs.
YES/NO
PIDs_Supported[]
N/A

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WORLDWIDE ENGINEERING STANDARDS General Motors Local Area Network Enhanced Diagnostic Test Mode Specification
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This is an array of data structures that contains the list of supported PIDs and the
length of the data for each supported PID. PIDs_Supported[].PID_Number is
used in the pseudo code when checking the PID number to see if it is supported.
PIDs_Supported[].length is the number of data bytes associated with the given
PID.
Supported_Dyn_DPIDs[]
This is an array that contains all of the supported dynamically definable DPID
numbers.
N/A
max_Dynamic_DPID_Index
This is a constant that is used when indexing through the array of supported
dynamic DPIDs to determine if a DPID is supported. Its value is equal to 1 less
than the number of DPIDs supported by the ECU.
constant determined at
compile time
DPID_Index
This is a local index variable used when indexing through the array of supported
dynamic DPIDs to determine if the DPID from the request message is valid.
0 to
max_Dynamic_DPID_Index