Overview
1. Overview
1.1 About this manual
This manual describes the hardware of the CPCI-CAN/402. The following versions of the product
are described:
- CPCI-CAN/402-4-FD
- CPCI-CAN/402-4
4 CAN FD interfaces
4 CAN interfaces
(backwards compatible with Classical CAN)
(Classical CAN only)
CPCI-CAN/402-4 and the CPCI-CAN/402-4-FD are described together as CPCI-CAN/402-4(-FD).
Differences of the board versions are noted where they are described.
1.2 Classical CAN and CAN FD Version
Figure 1:
Block circuit diagram
The CPCI-CAN/402-4(-FD) is a CompactPCI board designed for the PCI bus that features four
electrically isolated CAN (FD) interfaces according to ISO 11898-2. The interfaces are easily
accessible via a DSUB25 connector in the front panel.
CPCI-CAN/402-4-FD
The CPCI-CAN/402-4-FD supports four CAN FD interfaces with bit rates from 10 kbit/s up to 5
Mbit/s. The independent CAN FD nets are designed according to ISO 11898-1:2015.
CPCI-CAN/402-4
The hardware of the Classical CAN version CPCI-CAN/402-4 and the CAN FD version CPCI-
CAN/402-4-FD is equal but both versions come with different CAN controllers in the FPGA images.
The electrically isolated high-speed CAN interfaces support bit rates up to 1 Mbit/s.
INFORMATION
The CPCI-CAN/402-4 is not recommended for new designs. (It can still be used in
existing systems, e.g. if the drivers shall not be reinstalled.)
Please use the successor CPCI-CAN/402-4-FD for new projects. The CAN FD version
can also be used for Classical CAN applications!
CAN FD
With a higher bit rate in the data phase in combination with the increase of efficiency by a higher
number of user-data bytes, CAN FD offers a higher data throughput while maintaining the benefits
of Classical CAN.
CPCI-CAN/402-4(-FD)
Hardware Manual • Doc. No.: I.2332.21 / Rev. 1.2
Page 9 of 42
J1
CompactPCI
Connector
PCI to PCIe
Bridge
4 x
CAN Core
with
Timestamp
FPGA
Altera EP4CGX
Electrical Isolation
DC/DC
Converter
Physical
CAN Layer
ISO11898-2
4x CAN (FD)
CAN (FD)
DSUB25
4x CAN (FD) Interface
CAN (FD)
CAN (FD)
CAN (FD)
CompactPCI
Front Panel
8 LEDs
DSUB25
CiA pinning
