VEMS Community Forum

Technical => Wiring & Sensors => Topic started by: Matus on June 12, 2019, 08:06:10 pm

Title: Analog Multiplexing issue
Post by: Matus on June 12, 2019, 08:06:10 pm
Hi,

I have analog multiplex connected inside ECU (done by order during ECU build) and all seems to be working in steady state. It is switching, sometimes it is like ECU takes few sec till it start switching analogs.  >> Engine stopped "noise "clearing out VIDEO >> https://youtu.be/vZWfPuv0T38 (https://youtu.be/vZWfPuv0T38)


However It is really strange behavior with engine running, it seems to me like lack of speed or something .. result is useless analog inputs.   >> Engine running  VIDEO :https://youtu.be/htHuMvQeEzE (https://youtu.be/htHuMvQeEzE)

Firmware : 1.38

Anybody who made it ?

Title: Re: Analog Multiplexing issue
Post by: Kamuto on June 14, 2019, 10:09:45 am
Hi,

I have analog multiplex connected inside ECU (done by order during ECU build) and all seems to be working in steady state. It is switching, sometimes it is like ECU takes few sec till it start switching analogs.  >> Engine stopped "noise "clearing out VIDEO >> https://youtu.be/vZWfPuv0T38 (https://youtu.be/vZWfPuv0T38)


However It is really strange behavior with engine running, it seems to me like lack of speed or something .. result is useless analog inputs.   >> Engine running  VIDEO :https://youtu.be/htHuMvQeEzE (https://youtu.be/htHuMvQeEzE)

Firmware : 1.38

Anybody who made it ?
updated ini files in vemstune?
Title: Re: Analog Multiplexing issue
Post by: Matus on June 24, 2019, 05:43:03 pm
Yea, I double check that. Also tried  version 1.41, still the same. Last time I test it was 4 days ago.
Title: Re: Analog Multiplexing issue
Post by: Kamuto on June 24, 2019, 10:44:01 pm
Yea, I double check that. Also tried  version 1.41, still the same. Last time I test it was 4 days ago.
btw, in vemstune preferences you have to select enable compiled files NO, :) anyway as much as I have experienced that it works all good :) more then 20 multiplexers working
Title: Re: Analog Multiplexing issue
Post by: Matus on June 26, 2019, 02:43:00 pm
Hmm, wasn't even aware about it :D. 

However, unchecked, config burned, nothing has changed.
I checked ini files before try, it download 4 new files but nothing has changed for me.
Also I tried to rollback to 1.38, still the same.

Any other idea what to check ?
I am considering if it takes maybe noise of the sparks or something, but it is not periodical, doing it even in idle and randomly ..
Title: Re: Analog Multiplexing issue
Post by: Kamuto on June 26, 2019, 06:41:41 pm
Hmm, wasn't even aware about it :D. 

However, unchecked, config burned, nothing has changed.
I checked ini files before try, it download 4 new files but nothing has changed for me.
Also I tried to rollback to 1.38, still the same.

Any other idea what to check ?
I am considering if it takes maybe noise of the sparks or something, but it is not periodical, doing it even in idle and randomly ..

its not noise :) never used it in way you use it :) check how these channels look  in log :)
Title: Re: Analog Multiplexing issue
Post by: Matus on July 01, 2019, 07:53:05 pm
Might it be related to SDcard logging ?  I was trying to do log, to check and share but you know.. short file that I makes seems to be weird for me.

http://www.vems.hu/files/MembersPage/Matus/MUX%20LOG.vemslog (http://www.vems.hu/files/MembersPage/Matus/MUX%20LOG.vemslog)