AN3044

STMicrolectronics self test tool

Doc ID 16196 Rev 2

17/20

6.5

ECU connection

The PCB of the ECU should be prepared for JTAG connection. In most cases, JTAG test

pads can be placed close to the MCU for PCB testing. A good alternative is to have a

provision for an SMD JTAG connector as it can be used for ECU testing and for PCB level

diagnostic.

Figure 4.

ECU connection