Страница 1 мировой engineering стандарты общая спецификация

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GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
Figure 38: Example 2 - ECU with One Software Module and Two Calibration Modules
In addition, the following information is given for this 
example:
•
The part number stored in the SWMI field of the headers is in 4-byte hexadecimal format.
•
The Design Level Suffix or Alpha Code is stored in a 2-byte format and has a value of $AA for all modules.
•
The tool set used to create the headers does so using word size parameters so the NOAR and HFI fields
Op s/w Region 1
Void Memory Region
Op s/w Memory
Region 2
$002000
$00A400
$00A500
$020000
•
•
Op s/w Module
Module Id = $01
Part # = 56781234
Calibration
Module 1
Calibration
Module 2
Calibration Module 1
• Module Id = $02
• Part # =1234 5678
Calibration Module 2
• Part # =34 567812
• Module Id = $03
$022000
$028000

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are two bytes in length for all modules.
The header for the operational software module in this example would contain the following information
(Table 223):
Table 223: Operational Software Module Header Data for Example 2
Offset
Number
of Bytes
Description
$00
2
Module checksum or CRC (hex) = $xx xx
$02
2
Module ID = $00 01
$04
2
Header Format Identifier = $23 80
$06
4
SWMI (part # 56781234) = $03 62 69 B2
$0A
2
Alpha Code = AA ($41 41)
$0C
2
NOAR = $00 02
$0E
4
PMA#1 = $00 00 20 00
$22
4
NOB#1 = $00 00 84 00
$26
4
PMA#2 = $00 00 A5 00
$2A
4
NOB#2 = $00 01 5B 00
$2E
2
NOAM = $00 02
$30
2
NOAR_am1 = $00 01
$32
4
PMA#1_am1 = $00 02 00 00
$36
4
NOB#1_am1 = $00 00 20 00