Страница 1 мировой engineering стандарты общая спецификация

Table 217: DeviceControl Example Message Flow of Limit Exceeded
T = Frame Sent By Tester, N = Frame Sent By Node; shaded region indicates PCI
Frame Type CAN Id
#1
#2
#3
#4
#5
#6
#7
#8
N(USDT-SF)
$641
$05
$7F
$AE
$E3
$09
$02
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GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
8.20.6 Node Interface Function.
8.20.6.1 Node Interface Data Dictionary (Table 218).
Table 218: Data Dictionary of DeviceControl Service Pseudo Code
Variable/Meaning
Values
message_data_length
Dev_Cntrl_Active
security_Access_Unlocked
TesterPresent_Timer_State
request_DeviceControl_exit
Diag_Services_Disable_DTCs
DTCs_Enabled_In_Device_Control
Security_Access_Allowed
Reference Common/Global
Pseudo
Code
Data
Dictionary For Definition Of
These Flags/Variables
device control status flags
Flags associated with each device control function. Indicates whether or not the
individual device control function is active.
TRUE/FALSE
Valid_CPID
This is a flag used to keep track of whether the requested CPID is supported by
the ECU.
YES/NO
Num_Supported_CPIDs
This is a constant that is equal to the number of CPIDs supported by the ECU.
Determined at compile time
CPID_Index
This is a counter used to index through the array of supported CPIDs when
validating the requested CPID.
$00 to
(Num_Supported_CPIDs - 1)
CPID_Array[]
This is a multi-dimensional array of pointers and data used by the device
control application. Data in this array includes the CPID number, whether or not
the CPID requires security access, whether or not the CPID requires security
code access, the length of the control bytes for a given CPID, and the actual
control data bytes. The pseudo code uses the CPID number, security status,
N/A

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and length. These values are accessed in the pseudo code using the following
notation: