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CCS/TMS570LC4357: HalCoGen CAN message configuration bug (CAN1 message 41/42 <-> CAN2 message 41/42)

Dirk Jung
Prodigy 70 points
Part Number: TMS570LC4357
Other Parts Discussed in Thread: HALCOGEN

Tool/software: Code Composer Studio

Setting up CAN message configuration in HalCoGen (here version 04.07.01) does not work correctly.

There are interferences between CAN1 and CAN2 message configurations.

For example:

Setup CAN1:

Message 41 configuration:    activate, TX, enable RTR: off, enable Int: off

Message 42 configuration:    activate, RX, enable RTR: on, enable Int: on

Then goto CAN2, here configure message 41 and 42 the other way round:

Message 41 configuration:     activate, RX, enable RTR: on, enable Int: on

Message 42 configuration:     activate, TX, enable RTR: off, enable Int: off

Afterwards switch back to CAN1 message 41 and 42, and ... HalCoGen has changed the settings here, instead of what has been setup above now:

Message 41 configuration: Enable RTR is on now

Message 42 configuration: RX changed to TX, enable Int is off now instead of on.

That also works the other way round, not sure if there are more message pairs interacting like that or if more CAN interfaces are concerned.

So to get the configuration intended, the setup in HalCoGen can not be used.

  • 0
    TI__Guru**** 192486 points

    Hello Dirk,

    The initialization code of the CAN1 mailbox42 is not generated whatever it is enabled or not. The initialization code for other mailboxs  are generated correctly. 

    To use mailbox, user needs to initialize CAN1 mailbox42 manually.