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aheit / cantools

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cantomat 0.31 produces only header in .mat file #11

Closed skrtre closed 3 years ago

skrtre commented 3 years ago

I build cantools on Ubuntu 20.04. No errors in makes but when tried cantomat the output was "MATLAB 5.0 MAT-file, Platform: x86_64-pc-linux-gnu, Created by: libmatio v1.5.17 on Wed ... 'NUL' 'NUL''SOH'IM". Nothing else. I have used cantomat about five year ago but no ideas what was the Linux distro then. Any ideas what is wrong with my build? Thanks.

aheit commented 3 years ago

Hello,

thanks for the report. Let me try to understand the issue better. What type of input file are you trying to convert? Would you be able to send me those files?

Regards, Andreas

skrtre @.***> schrieb am Mi., 3. Nov. 2021, 20:22:

I build cantools on Ubuntu 20.04. No errors in makes but when tried cantomat the output was "MATLAB 5.0 MAT-file, Platform: x86_64-pc-linux-gnu, Created by: libmatio v1.5.17 on Wed ... 'NUL' 'NUL''SOH'IM". Nothing else. I have used cantomat about five year ago but no ideas what was the Linux distro then. Any ideas what is wrong with my build? Thanks.

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skrtre commented 3 years ago

Hello Andreas,

The simple example is attached. The used command was

cantomat -d simple.dbc -a sample.asc -m sample.mat --verbose Parsing DBC file simple.dbc Parsing input file sample.asc Writing MAT file sample.mat

Test.zip

Regards, Seppo

aheit commented 3 years ago

Hello Seppo,

the asc file has logged the messages on bus 1, so you need to associate the dbc file with this bus on the command line:

cantomat -b 1 -d simple.dbc -a sample.asc -m sample.mat --verbose

I hope this solves the problem.

Regards, Andreas

skrtre @.***> schrieb am Do., 4. Nov. 2021, 09:28:

Hello Andreas,

The simple example is attached. The used command was

cantomat -d simple.dbc -a sample.asc -m sample.mat --verbose Parsing DBC file simple.dbc Parsing input file sample.asc Writing MAT file sample.mat

Test.zip https://github.com/aheit/cantools/files/7473281/Test.zip

Regards, Seppo

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skrtre commented 3 years ago

Hello Andreas,

You are right. I assumed that the default bus is 1 and -b is not needed. After that the created mat file was perfect.

Thanks, Seppo