Страница 1 мировой engineering стандарты общая спецификация

Where:
M
1 
= This return code is required if the SPS utility file contains different routines for the various suppliers of
permanent memory that are used for a given ECU.
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Page 165
GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
8.13.5 Message Flow Example Transfer Data.
8.13.5.1 TransferData Positive Response Example (ECU Uses 3-Byte Address). 
The following example
(Table 143) assumes:
•
The node uses 3-byte addressing (e.g., startingAddress is three bytes).
•
The node targeted is programmable.
•
The node has security unlocked.
•
Mode $28 is already active.
•
Mode $A5 is already active (programming mode enabled).
•
A Mode $34 request was sent and a positive response resulted.
•
The tester is downloading and executing a routine (sub-function = $80).
•
The routine (dataRecord[]) to be transferred contains 250 bytes of data (so message_data_length = 250 +
5 or 255 bytes. The 5 bytes come from the Service ID plus the sub-function parameter byte plus the 3-byte
startingAddress).
•
The starting address ($00 $23 $FF) plus the number of data bytes all fall into valid ECU memory address
space.
•
It takes the node longer than P2
C 
ms to completely download and execute the routine (so the node sends
a negative response with response code $78, and eventually sends a positive response (within the
enhanced P2
CE
* timing for programming) message which indicates that the block of data is successfully
received and processed by the ECU.
•
The target node physical request CANId is $241.
•
The target node physical USDT response CANId is $641.
•
The USDT flow control parameters Block Size (BS) and Separation Time (ST) are both $00.
•
TesterPresent messages are sent (but are not shown in the example).