Страница 1 мировой engineering стандарты общая спецификация

RequestCorrectlyReceived-ResponsePending
•
This response code shall be sent if reading the data from the address(es),
which is referenced by the dataIdentifier, takes longer than P2
C 
ms (e.g.,
the data to be read has to be retrieved from another processor via an ECU
internal Serial Peripheral Interface (SPI) bus).
•
This response code shall be sent if the ECU operating conditions are such
that the request temporarily cannot be performed (e.g., the data to be
retrieved cannot be read from EEPROM because another application task
is currently writing to EEPROM).
C
RCR-RP
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Page 96
GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
8.4.5 Message Flow Example ReadDataByIdentifier Service.
8.4.5.1 ReadDataByIdentifier(dataIdentifier=VIN). 
The example below (Table 73) shows how the
ReadDataByIdentifier(dataIdentifier=VIN) service shall be implemented. The example assumes the following
information to be true:
•
The point to point request CAN Id for the ECU is $241.
•
The USDT response CAN Id of the ECU is $641.
•
The Data Identifier for the Vehicle Identification Number (VIN) is $90 (as defined in Appendix C).
•
The USDT flow control parameters Block Size (BS) and Separation Time (ST) are both $00.
Table 73: ReadDataByIdentifier(dataIdentifier=VIN)
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
T(USDT-SF)
$241
$02
$1A
$90
---
---
---
---
---
N(USDT-FF)
$641
$10
$13
$5A
$90
“W”
“0”
“L”
“0”
T(USDT-FC)
$241
$30
$00
$00
---
---
---
---
---
N(USDT-CF)
$641
$21
“J”
“B”
“F”
“3”
“5”
“W”
“1”
N(USDT-CF)
$641
$22
“0”
“4”
“2”
“7”
“6”
“5”
---