We are using the VeriStand Custom Device ECU M&C to communicate with our ECU via XCP over CAN. We have setup a regression test suite where each measurement task corresponds to the signals we want to record for a given test. We are using Polling to request the measurements at a series of steady sates and we are utilizing the "__Enable Measurement" flag to reduce bus traffic to just the signals of interest. We noticed on our most recent test that 3 of the newly added signals would not update. When investigating the bus traffic, no XCP request messages for the missing measurements were observed. However, if we copied our SDF and removed all the other measurement tasks such that only the signals for this one test were present, the request messages would transmit correctly and the test worked as expected. We then discovered that the 10 signals this test was examining put the total number of measurement signals from 120 to 130. Further experiments were able to show that only the first 127 measurements added would work correctly in our environment.
Is this a known/intended limitation on the ECU M&C tookit's part? I've read a lot of documentation that brings up the bus load issue, but if there is a cap, I would expect something to mention that.
Is there a more extensible way to package a large number of regression style tests together?
