Question for CAN acceptance filter

kimjunghyun · ‎09-28-2014

Hello.

I am Kim from south korea.

I have been using codewarrior to develop some items.

But I had a trouble and I need some help to answer my question.

My question is as below.

Please answer me if anyone can give a help

Thank you

Kim.

trytohelp · ‎10-07-2014

Hi Kim,

Early this year I've contacted the Processor Expert team for similar issue.

I've received feedback.

See below:

++++++++++++++++++++++++++

We have received the following feedback from the development team than analysed the issue:

- per manual recommandation (see footnote in chapter 8.4.3 Identifier Acceptance Filter), option "Four 16-bit acceptance filters" should be used for "Acceptance mode" property for standard identifiers.

- according to chapter 8.3.2.18 MSCAN Identifier Mask Registers (CANIDMR0-CANIDMR7), in order to receive standard identifiers in 16 bit filter mode, it is required to program the last three bits (AM[2:0]) in the mask registers CANIDMR1, CANIDMR3, CANIDMR5, and CANIDMR7 to "don't care". This accounts for the last 3 bits of the ID registers, which are unused. So, the two acceptance masks should be 0x00070007 (two filters per mask).

- the ID value must be in the most significant 11 bits of the CANIDARx registers, in order to compare them with the ID registers, who format is described in chapter 8.3.3.1.2 IDR0-IDR3 for Standard Identifier Mapping. 0x7DF << 5 = 0xFBE0. So the two acceptance codes should be 0xFBE0FBE0 (two filters per code).

++++++++++++++++++++++++++

You can download the reference manual on the web using the link:

http://cache.freescale.com/files/microcontrollers/doc/ref_manual/MC9S12P128RMV1.pdf

Hope this will help you.

Have a great day,
Pascal Irrle

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kimjunghyun · ‎10-21-2014

Hi. Pascal.

I could not understand how to apply datasheet’s explanation to the Processor Expert(don’t care processing) but I could understand it through your answer.

Actually I have to use extended ID. So I set as below but CAN data was not received. I need your help.

ID that I have to receive : 0x18ff56e7, 0x18f00503

Setting for Processor Expert

- Acceptance mode : Two 32-bit acceptance filters

- Acceptance code1 : 18ff56e7

- Acceptance code2 : 18f00503

- Acceptance mask1 : 00180000

Thank you.

Best regards.

Kim.

trytohelp · ‎10-02-2014

Hi Kim,

Can you please provide me more information about the tool version used and the architecture (derivative) used ?

Have a great day,
Pascal Irrle

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kimjunghyun · ‎10-05-2014

Hi. Irrle

I have been waiting someone's answer. Thank you.

CodeWarrior : CodeWarrior IDE version 5.9.0

PE micro : USB Multilink Interface

And what is the architecture? (if you answer me, I would let you know)

Thank you.

Kim.

trytohelp · ‎10-05-2014

Hi Kim,

CodeWarrior IDE V5.9.0 is not the tool version but the version of IDE.

We've several development tool based on this IDE.

To know exactly the development tool suite you must:

Start the IDE and click on Help | About Freescale CodeWarrior.

Click on Installed Products

Provide us all info displayed.

Or you can save them in a txt file.

The device architecture is needed too.

Regards

Pascal

kimjunghyun · ‎10-06-2014

Hi. Pascal.

Please refer as below picture.(Tool version)

But I could not find any icon to attach the txt file so I copied and pasted it here

Thank you.

Kim.

Installed Products:
CodeWarrior Development Studio for the S12(X) Version 5.1, build 10221.

IDE Version: 5.9.0 Build 5294
Plugins: 62

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IDE_MFC60cw.dll 6.00.8665.0 6.0.8665.0 6.0.4.0 2010-08-05, 2:53 오후 1.59M
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MWCore5_0.dll 5.9.0 Build 5294 5.9.0.5294 5.9.0.5294 2010-08-05, 2:54 오후 240K
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PluginLib6.dll 5.9.0 Build 5294 5.9.0.5294 5.9.0.5294 2010-08-05, 2:51 오후 84K
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tcl84t.dll 8.4.12 8.4.2.12 8.4.2.12 2006-09-25, 10:22 오후 576K
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utf8conversion.dll No Version Info 0.0.0.0 0.0.0.0 2008-05-22, 7:36 오후 524K
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xerces-2_2_0.dll 2, 2, 0 2.2.0.0 2.2.0.0 2010-08-05, 3:01 오후 2.14M
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Bin\Plugins\COM
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PE_Plugin.dll             4.44.0.5282               4.44.0.5282               4.44.0.5282               2010-08-16, 12:58 오후    7.50M
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================================================================================================
Bin\Plugins
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Bin\Plugins\compiler
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hw_hc12_assembler.dll     5.0.14.10203              5.0.14.10203              5.0.14.10203              2014-05-21, 1:35 오후     116K
hw_hc12_compiler.dll      5.0.14.10203              5.0.14.10203              5.0.14.10203              2014-05-21, 1:35 오후     116K
hw_hc12_importer.dll      5.0.14.10203              5.0.14.10203              5.0.14.10203              2014-05-21, 1:35 오후     116K
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PCLintCompiler.dll        No Version Info           0.0.0.0                   0.0.0.0                   2014-05-21, 1:35 오후     116K

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Bin\Plugins\Editor
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Bin\Plugins\preference_panel
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hw_hc12_burner_panel.dll 5.0.14.10203              5.0.14.10203              5.0.14.10203              2010-07-23, 11:20 오전    89K
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hw_xgate_libmaker_panel.dll 5.0.14.10203              5.0.14.10203              5.0.14.10203              2010-07-23, 11:20 오전    89K
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PBatchRunnerPostLinker.dll 2.0.0 Build 0004          2.0.0.4                   2.0.0.4                   2003-09-11, 11:31 오후    39K
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trytohelp · ‎10-07-2014

Hi Kim,

thanks for details.

I will start to investigate the problem.

Just another question.

What is the derivative used ?

Have a great day,
Pascal Irrle

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Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

kimjunghyun · ‎10-07-2014

Hi. Pascal.

What is the derivative? (Do you mean MCU? MC9S12P64_48QFN is used)

Thank you.

Kim

trytohelp · ‎10-07-2014

perfect.

Keep you informed.

Have a great day,
Pascal Irrle

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Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

Question for CAN acceptance filter

Question for CAN acceptance filter

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