Issue when mapped from a DBC File: The bit number inversion setting is undefined for the mapping 'HS1_CAN.json', but it is database-backed - assuming inverted

[Carl Chen]

Hi Dear Group,

I got an issue when I'm going to generator an signals.cpp from DBC file. I exchange this DBC fails to xml file. This xml is about 31M.

I run the generate firmware code command , and it returned a fail response. I don't know how to deal with it, can you please help me.

vagrant@vagrant-ubuntu-precise-64:~$ cd vi-firmware

vagrant@vagrant-ubuntu-precise-64:~/vi-firmware$ openxc-generate-firmware-code

--message-set config.json > signals.cpp

Adding mapping 'HS1_CAN.json'

Install the 'lxml' Python package to speed up CAN database parsing

The bit number inversion setting is undefined for the mapping 'HS1_CAN.json', bu

t it is database-backed - assuming inverted

Config.Json:

{   "buses": {

        "hs": {

            "controller": 1,

            "speed": 500000

        }

    },

    "mappings": [

         {"mapping": "HS1_CAN.json",

            "bus": "hs",

            "database": "HS1_CAN.xml"}

    ]

}

HS1_CAN.json:

{

    "messages": {

        "0x41": {

            "signals": {

                "immoControlCmd_T1": {

                    "generic_name": "immoControlCmd_T1"

                }

            }

        }

    }

}

I can find this messsage ID in xml file:

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>

<Network DB_ID="-4096">

  <Name>HS1_CAN</Name>

  <Attribute>

    <Name>BusType</Name>

    <Value>CAN</Value>

  </Attribute>

  <Attribute>

    <Name>StarNetworkGwType</Name>

    <Value>1=HS1</Value>

  </Attribute>

  <Attribute>

    <Name>CMDB_Version</Name>

    <Value>v14.07</Value>

  </Attribute>

  <Attribute>

    <Name>NmType</Name>

    <Value>Ford-OSEK</Value>

  </Attribute>

  <Attribute>

    <Name>NetworkSpeed</Name>

    <Value>500kBits/s</Value>

  </Attribute>

......

......

.....

 <ID>0x41</ID>

      <Frametype>CAN Standard</Frametype>

      <DLC>8</DLC>

......

......

Thanks.

[Christopher Peplin]

Hi Carl,

The bit numbering message is an informational notice but not an error - are you sure it failed? Was there any other output?

Chris

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[Carl Chen]

Hi Chris,

You are right, I found this signal in signals.cpp, sorry for this mistake.

在 2015年1月21日星期三 UTC+8下午9:24:40，Chris写道：