Port CANopen Mini Bootloader PAULUS

Software Update

PAULUS bootloader offers this flexibility for devices in CAN/CANopen networks, because CANopen provides with the SDO Transfer standardized mechanisms
for the transmission of big data volume.

The bootloader itself works independently from the application as a minimal CANopen slave node according to CiA-301.
A software update can be executed with a CANopen master or configuration tool in the user flash code memory.
PAULUS is optimized to code size and widely compatible to CANopen.

Requirements

Some CANopen services are always available, othercan be activated by a configuration file.

• NMT Error - heartbeat creation by bootloader is available
• emergency services can be used with limitations
• CANopen Layer Setting Services are supported
• CANopen bootloader is SDO server
• PDO service is not supported

To divide protocol layer and harware application layer principally allows the usage on all targets.

Features

With PAULUS a new generation of CANopen bootloaders is available. Aim of the development was the creation of a compact, modular and memory saving bootloader platform for different hardware architectures.
• memory saving - up to 50% less memory space is needed in contrast
to the old bootloader generation
• modular - applicable to further hardware architectures in short
time
• compact - clear and easily understandable code allows fast customer specific adaptions

Typical values for needed memory are:
• 20-24 kByte Flash (Example STM32F0)