12 | Hardware Description
ETAS ES582.2 | User Guide
2.4 Interfaces
Fig. 2-2 ES582.2 Block Diagram
2.4.1 CAN Interfaces (CAN1/CAN2)
CAN FD (CAN Flexible Data Rate) is an improved, downward-compatible CAN pro
-
tocol. The main differences to CAN are in the extension of the user data per mes-
sage from 8 to 64 bytes, higher transmission rates of up to 8 Mbit/s and longer
checksums, which increase the reliability of the transmission. CAN FD covers the
demand for higher bandwidth for networks in the automotive industry. At the same
time, CAN FD nodes can easily be integrated into the existing CAN infrastructure.
The ES582.2 CAN FD Bus Interface USB Module features the CAN interfaces CAN1
and CAN2 at the 9-pin socket. The two CAN interfaces are independent CAN chan-
nels with separate CAN controllers. Tye are isolated from the USB port of the
ES582.2.
Operating modes
Each CAN interface can optionally be operated in the CAN high-speed operating
mode or in the CAN FD (CAN Flexible Data Rate) operating mode. The ES582.2
module supports ISO-compliant CAN FD as well as non-ISO-compliant CAN FD.
The interfaces CAN1 and CAN2 can be configured independently of each other in
the application software for the following operating modes:
- CAN
- ISO-compliant CAN FD
- Non-ISO-compliant CAN FD
Multi-client support
Each of the CAN channels of the module ES582.2 can support two clients (applica-
tion tools) at the same time. On each of the CAN channels, simultaneous access,
e.g. by an application tool (e.g. INCA) and a diagnostics tool (e.g. DiagRa) is possi-
ble.
Overall, each individual ES582.2 module connected to the PC can operate four (dif-
ferent) clients or application tools.
NOTE
The two interfaces CAN1 and CAN2 can be used independently of each other in
different operating modes.
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