AN3044 Datasheet, PDF (9/20 Pages) STMicroelectronics – ECU level diagnostic with SPC563Mx and SPC564Ax

AN3044
ECU level diagnostic
2.4
Summary for ECU level diagnostic
The table below is summarizing the different possibilities for ECU level diagnostic.
Table 1. ECU level diagnostic
Comments
SPC56x traceability info
from protected Flash
3 different options proposed with 2 not
requiring to distribute the Flash password:
either use specific diagnostic software either
use serial boot mode with a specific
sequence.
Connection to ECU
ECU connector
To have 1 pin for boot mode selection
and 1 pin for ECU reset without power off
Communication interface UART, LIN, CAN, FlexRay
ECU software
for self tests #1
User software using application specific
diagnostic mode.
Diagnostic mode can be selected by
using GPIO.
Diagnostic can send traceability
information and run small ECU self tests
software.
ECU software
for self tests #2
Software uploaded in SPC56x RAM
Requires to have access to boot mode
from ECU connector.
Very flexible scheme for loading and
executing self tests but require specific
sequence for reading traceability
information.
Proposed tools #1
Third party tools (Vector, Etas, ..) that allows
connection to the selected communication
interface.
Proposed tools #2
ST Combox + CPUcommander software
Requires manual configuration of
CPUcommander (com. characteristics,
format of traceability info).
Doc ID 16196 Rev 2
9/20