TM4C123GH6PM: Help needed in CAN TivaWare module

sarea hariri

Part Number: TM4C123GH6PM

Hello everybody,

I am trying to connect 2 TivaC over the CAN bus using CAN0 controller and TivaWare library. The TX node works properly.

But for Rx..

After initialization and setting the bit rate, when the CANmessageSet() is called i have a bus fault error and the code stop at the fault error while(1) in the startup code.

I have tried to step in to the CANmessageSet() fuction. Then noticed a function trying to access a prevented address.

any help please ?

over 7 years ago

0 digvijay khambe over 7 years ago

Expert 2735 points

check whether can0 module and pins required for can0 module have been initialized properly.

regards,
digvijay

0 sarea hariri over 7 years ago in reply to digvijay khambe

Intellectual 650 points

thanks digvijay,
I use PB4, PB5 for CAN0 module and of course i have initialized those..

Regards,
Sarea

0 digvijay khambe over 7 years ago in reply to sarea hariri

Expert 2735 points

respected sir/madam,
can u share your can code, especially code related to pui8Data. Looks like pui8Data is trying to access prevented memory address. If possible try to implement only receiver part from can example given by TI without changing memory mapping.

regards ,
digvijay

0 Bob Crosby over 7 years ago in reply to sarea hariri

TI__Guru 72500 points

Sarea,

I have attached a zip file with working copies of CAN_simple_RX and CAN_simple_TX projects.

/cfs-file/__key/communityserver-discussions-components-files/908/canSimple.zip.

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TM4C123GH6PM: Help needed in CAN TivaWare module