i.mx53 can't send the special data through the CAN bus

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i.mx53 can't send the special data through the CAN bus

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huangjacky
Contributor III

Dear All:

I got some special data as below :

the data length is 8 byte

     79 78 2A 00 78 78 78 78

     79 78 30 01 18 66 3C 6E

     7D 78 42 00 7C 78 70 00

I can't get the data on the receiver after I send from the imx53 can bus.

pls help

Thanks!

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YixingKong
Senior Contributor IV

Jacky

Please provide further information asked by Pelayo. We may close the DI when no respons will be received.

Thanks,

Yixing

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YixingKong
Senior Contributor IV

JackyHuang

If your questions had been answered, please click Correct Answers or Helpful Answer. We may close the DI when no respons will be received.

Thanks,

Yixing

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ioseph_martinez
NXP Employee
NXP Employee

Hello Jacky,

Can you provide more details on what you are doing?

What do you mean by special data? I understand that in CAN you simply send data besides other parameters.

Can you describe your system: transmitter is imx53 with linux? what is your receiver? is also imx53?

Regards,

Ioseph

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ioseph_martinez
NXP Employee
NXP Employee

Jacky,

I think first you need to verify the whole tx and rx system is OK.


- Use the tests on the /test folder: test/can/doc/FSL-UT-CAN-003.txt. This test can help you to verify you have your system correctly. Can you tell how they are working? try 8 bytes.

- check your receiver is working correctly: try another receiver or use loopback mode on imx53 to receive the messages on a different port. Try a know working transmitter.

- What happens if you send less than 8 bytes, like 7, 6, 5, etc?

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YixingKong
Senior Contributor IV

Ioseph, your answers/question did not go to Jacky since you replied yourself. In order to reply Jacky you have to click 'Reply' in his reply text box or @mention him.

Regards,

Yixing

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huangjacky
Contributor III

Sorry for reply so late.

The special data what I mean is when I send the data

79 78 2A 00 78 78 78 78

and the receiver can not get the last byte data.


My system is iMX53 linux , and the receive is another platform device.

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