TMS570LC4357: CAN communiaction.

srikanth

Part Number: TMS570LC4357
Other Parts Discussed in Thread: HALCOGEN

Hello.

iam using TMs570LC4357 ti microcontroller for CAN communication.

i trying to send mutiple Message id's (0x2100, 0x3100, 0x4100 and 0x5100 {0x2101, 0x2102, 0x2103, 0x2104...0x21024}, {0x3101, 0x3102, 0x3103, 0x3104...0x31024} {0x4101, 0x4102, 0x4103, 0x4104...0x41024} {0x2101, 0x5102, 0x5103, 0x5104...0x51024}) at the same time i want receive these message ids.

with CAN Reg 1 in transmiting function IF1 register using for data transmintting. Message Receiving is happening from IF2 Register.

help me to how can i change message identifier in run time?

i used canUpdateID funtion for change msg ID. using this can message not delivering i tested with CAN bus analyzer.

over 1 year ago

+1 jagadish gundavarapu over 1 year ago

TI__Guru 70241 points

Hi Srikanth,

If you want to configure more than 64 message ID's then it won't be possible with single CAN instance and please refer below threads:

(+) TMS570LS0914: CAN Message Objects Limitaion - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

(+) RM46L852: Limitation on the Number of CAN Message IDs - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

Thanks & regards,
Jagadish.

+1 srikanth over 1 year ago in reply to jagadish gundavarapu

Prodigy 40 points

In my project I will use 5 message box ids only msb I considered as address of controller and lsb considered as message number

I am using 4 can drivers in 4357 controller one will accepts all messages and remaining can nodes has to accept only particular messages .

I trying this way

in halcogen msg box 1 will transfer Id with value is 0x1100. Mask 0x0000FF00.

msg box 2 is for receiving with Id value 0x2000. Mask 0x0000FF00. Like this I did

in run time 0x1100 msg Id has to change like

0x1101, 0x1102, 0x1103 . And message box is 1 only . This is my requirement. Can you suggest any solution..

0 srikanth over 1 year ago in reply to srikanth

Prodigy 40 points

HI Jagadish ,

thanks for your replay. I solved my problem with changing arbitaration of CAN message.

Thanks & regards,

D Srikanth.