Страница 1 мировой engineering стандарты общая спецификация

9.3.3 Product Memory (Operational Software and Calibration) File Requirements. 
Product memory files
released to the assembly plant or service shall be in binary format.
All files (e.g., software, calibration, utility file, drawing files, archives, etc.) distributed to GMNA assembly plants
or GMNA service facilities shall meet all of the requirements specified in the GM World Wide Software and
Calibration Parts Application Program Interface specification. In addition, all binary files (e.g., software,
calibration, utility file) and their associated drawing files shall have the file base name the same as the part
number released through the Product Description System (PDS).
The Module ID for the Operational Software data file shall be $01.
Note: 
If the ECU has more than one microprocessor, then Module Id $01 shall be assigned to the operational
software module of the processor that handles serial data for reprogramming.
The ECU software and calibration files shall have a header as defined in paragraph 9.3.3.1. The header
information is transferred to the appropriate ECU during the programming event. Portions of the header
information are optionally programmed into the ECU permanent memory.
9.3.3.1 Software and Calibration File Header Requirements (Table 219).
Table 219: ECU Software and Calibration Module Header Definition
Offset
Number
of Bytes
Name
Description
Cvt
$00
2
CS
Module 
c
heck
s
um or CRC (hex)
M
$02
2
MID
M
odule 
ID 
(hex)
M
$04
1 to 2
HFI
This field contains a 
H
eader 
F
ormat 
I
dentifier (HFI). The HFI
is used to indicate the length of the Software Module
Identifier (SWMI) field, the length of the Design Level Suffix
field, and whether or not the Product Memory Address and
Module Length fields are included in the header. Refer to