DoCAN

[CAN-FD] Vehicle Diagnostic Communication Part 90 [python-can 4]

Click here for back issues.Introduction.Explanation of CAN-FD simulation in python-can.This is the time to replay with c...

2023.02.14

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[CAN-FD] Vehicle Diagnostic Communication Part 89 [python-can 3]

It was discovered that can.player and can.logger do not support CAN-FD.I immediately modified them to support CAN-FD.can.logger has a little different problem.

2023.02.13

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[CAN-FD] Vehicle Diagnostic Communication Part 88 [python-can 2]

Review can.player and can.logger.Created asc file for CAN-FD and CAN mixed replay.Mixed CAN is for identifying the affected area in case of an anomaly.

2023.02.12

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[CAN-FD] Vehicle Diagnostic Communication Part 87 [python-can 1]

BusMaster does not support CAN-FD.The asc format of CAN-FD is different from CAN.FDF bit and BSR bit parameters are added.

2023.02.11

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[CAN-FD] Vehicle Diagnostic Communication Part 86 [Overview 2]

Simulation procedure and intuition explanation.CAN-FD control with python-can.CAN-FD diagnostic communication with can-isotp (ISO15765-2).CAN-FD diagnostic communication with AUTOSAR-CanTp (ISO15765-2).AUTOSAR-Dcm for CAN-FD diagnostic communication (ISO14229-1).

2023.02.10

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[CAN-FD] Vehicle Diagnostic Communication Part 85 [Overview 1]

Switch from CAN to CAN-FD for the physical and data link layers.CAN-FD is described in Vector's "CAN/CAN-FD for Beginners".

2023.02.09

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[Dcm] Vehicle Diagnostic Communication Part 84 [Simulation 23]

We saw a pattern of returning NRC

10 (g e n e r a l R e j e c t) w h e n N R C

78 (ResponsePending) exceeds a certain number of times.This specification is not specified in ISO 14229-1.However, it is likely to be a de facto standard.Therefore, it is assumed that it is incorporated as an AUTOSAR specification.

2023.02.08

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[Dcm] Vehicle Diagnostic Communication Part 83 [Simulation 22]

Check the results of the WriteDataByIdentifier simulation.Confirmation of the message.Confirmation of CAN line.Often used in conjunction with ReadDataByIdentifier to check operation for reading after writing.NRC

78 r e t u r n e d a t m o s p h e r e . I n f a c t, N R C

78 is rarely followed three times.

2023.02.07

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[Dcm] Vehicle Diagnostic Communication Part 82 [Simulation 21]

I wrote Python code to simulate WriteDataByIdentifier.WriteDataByIdentifier is often protected by session and security, so the main test is to test it.

2023.02.06

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[Dcm] Vehicle Diagnostic Communication Part 81 [Simulation 20]

Check the results of the ReadDataByIdentifier simulation.Confirmation of the message.Check CAN line logs.Multi-DID specification is tricky.A request for a non-existent DID is an error.However, if the DID exists in the multi-DID, it is not an error.If the DID exists, it is not an error.However, an error may occur due to the response message length.

2023.02.05

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