Other tools from ST

AN3044

18/20

Doc ID 16196 Rev 2

7

Other tools from ST

ST has developed a Combox to allow to interface from the USB port of a PC and a UART or

CAN interface in an ECU.

7.1

Combox

The Combox is powered by the USB port. It has been designed for use in lab environment. It

allows CAN communication.

Figure 5.

Combox

The usage of the Combox shall be limited to reading traceability information.

MCU selftests are using the JTAG based tool.

7.2

SPC56x and autobaud

Some SPC56x support autobaud on CAN and UART; some do not.

The autobaud is supported by each powertrain variant (SPC563Mx, SPC564Ax) and by

each chassis variant (SPC560Px, SPC564ELx, SPC567HKx). The autobaud allows to avoid

to know the crystal of an ECU before connection.

For products without autobaud, users must know before connection the value of the crystal

used in the ECU and then compute the needed baudrate on the Combox side.