AN3044

PCB level diagnostic

Doc ID 16196 Rev 2

11/20

3.2

PCB level self tests

PCB level self tests can be run either from the application software (ex: selection from ECU

pins) or from the microcontroller RAM.

Even when high protection level is enabled, SPC563Mx and SPC564Ax allow to upload

software in RAM and to run it without having to distribute any private password to users.

This allows then to execute MCU specific self tests, ASSP self tests, power stage self tests.

The use of JTAG pins here allows to have high efficiency tools (debugger based tools) for

this analysis.

3.3

Tools for PCB level diagnostic

Different tools can be used for PCB level diagnostic.

Third party tools allowing connection to the selected communication interface can be used.

Depending on the selected communication interface, different third party tools can be used

(CAN/LIN = Vector, ETAS; JTAG = PLS, Lauterbach, iSystem). Some of those tools are also

available for external use and for extended temperature range.

Tools from STMicroelectronics

STMicroelectronics has developed tools for SPC56x for use for PCB level analysis and

using JTAG.

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Target connection = ST Rlink

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PC software = Raisonance debugger

This tool is only for use for ambient temperature. As the tools using JTAG and based on

debugger allow higher efficiency in PCB level diagnostic (ASSP, reading of analog inputs,

MCU) ST is only developing MCU self tests based on JTAG tools.