ANSI-C CANopen Driver Package

Overview
The CANopen Driver Packages (DP) provide access to the hardware of the CANopen Library of port. The Driver Packages are the keys for the usage of the target system independent of CANopen Library. They are designed for target systems with and without operation systems.

Description
The CANopen Driver Packages provide all necessary functions for

by means of a well defined interface. A CANopen Driver Package is comprised from a CPU- (DP/CPU), a CAN- (DP/CAN) and where applicable a driver for an operating system (DP/OS). These drivers can be used in any combination.

The following table shows hardware combinations of CPU and CAN drivers that are often used by our customers.

All drivers are available as documented ANSI-C source code. This allows easy and quick adoption to system specific hardware and trouble-free compilation with all ANSI-C compliant ANSI-C compilers.

The comprehensive documentation ensures that the driver can be easily ported to another hardware platform by the user.

Configuration possibilities
The driver provides access to the CAN controller by several means:

The used access method for accessing the CAN controller register depends heavily on the used hardware and can be adopted by means of access macros.

The driver for the FullCAN controller types provide the usage of

The last two modes provide the possibility to use devices with FullCAN controller. that support more CAN objects as are provided from the hardware of the CAN controller.

Many drivers do contain code for

that can be enabled via appropriate compiler defines.

Besides the drivers for processors with multiple CAN controller there are several other drivers that support configuration for multi-line usage with the CANopen Library. Thus there is a wide range of drivers that can be used for multi-line devices.

Please note that there are possible hardware constraints especially with older CAN controller.

Configuration of the driver is done with the CANopen Design Tool, which is enclosed to the CANopen Library as light version.

Resources
All drivers normally transmit and receive interrupt driven and therefore require the integration into the interrupt system of the device. It also can be used in polling mode for special-purpose applications. The time base for the CANopen Library can either be provided by the CANopen Library itself by using a timer or the timer interrupt function is called cyclically by another system timer.

Order Information
The CANopen Driver Packages are available as:

We recommend the purchase order of pre-configured driver packages that in addition to the CPU and CAN driver contain ready to use examples. These have been prepared with project files for the compilers and configurations we use.

For application of the CANopen Library with operating systems like Windows™ or LINUX™ port provides drivers for active and passive PC cards, parallel dongles, PCMCIA cards, USB interface and external Ethernet to CAN converter (EtherCAN).

Predefined Driver Packages