Davidv Posted October 19, 2017 Report Share Posted October 19, 2017 Hey, I've not played with can bus stuff before, but looking to set something up for sake of interest. One thing - ECU is limited to log at 100hz internally, or 40hz when streaming to a connected PC via the cable. How does this work with CAN, when logging at maximum data rate? If you were only logging a few values, would it potentially go higher than 100hz? I'm not sure how the rate of transmitting / receiving the frames relates to the data rate, and whether that potentially means higher than 100hz sending/receiving of frames. Thanks Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 19, 2017 Report Share Posted October 19, 2017 The logging will still be limited to the 100Hz or 40Hz limit regardless of the data source. Although the ECU can still receive, process and use the data much faster if it is used for internal calculations - it will only be time stamped and written to the logging memory chip 100 times per sec. The maximum rate for transmitting CAN messages out of the ecu (for say an external logger) is limited to 200Hz. Davidv 1 Quote Link to comment Share on other sites More sharing options...
Davidv Posted October 19, 2017 Author Report Share Posted October 19, 2017 Ahhh cool thanks! Yes that's what I was meaning, if via CAN the ECU could output the data at a greater rate than 100hz to an external item. Rather than CAN info coming into ECU. 200hz would be cool for some situations, so I think I'll give it a try. Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 19, 2017 Report Share Posted October 19, 2017 Here is where you adjust that: Davidv 1 Quote Link to comment Share on other sites More sharing options...
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