CAN Bus Communications Decoded: Determine Variable Scaling
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Determine Variable Scaling
01.06
| 00:00 | - The last step in our CAN bus reverse engineering 5 step process, is to take the data stream locations we've identified as possibly containing the parameter values we're looking for and convert that raw data into real world parameter values. |
| 00:13 | To determine the scaling between raw data and real world parameter values, you're going to need a value for the real world parameter to compare the raw data against. |
| 00:24 | This is where conventional automotive scan tools can be an excellent help as they show us these parameter values. |
| 00:31 | Although usually at quite a low frequency. |
| 00:33 | This low frequency is fine however as we tend to only need a couple of points of comparison to work out the scaling. |
| 00:39 | We outlined a couple of procedures to follow when going this in the earlier determining parameter scaling course module and now is the time to put those skills to use. |
| 00:49 | There is not a one size fits all process for this however and some prior knowledge and experience is going to come into play. |
| 00:56 | We'll show this entire process being undertaken in the world examples section of the course and go through some detailed examples there. |
