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Updated SCSI Bus Capture (markdown)

akuker 2020-10-14 18:28:43 -05:00
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SCSI-Bus-Capture.md

@ -16,14 +16,29 @@ make all
## Special RaSCSI 1.5/1.6 modification
If you're using a RaSCSI version 1.5 or 1.6, you will need to make the following modification to your board. This will force all of the transceivers into a RECEIVE-ONLY mode.
<a href="./images/scsimon_mods.png"><img src="./images/scsimon_mods.png" width="200"/></a>
<a href="./images/scsimon_mods.png"><img src="./images/scsimon_mods.png" width="400"/></a>
Note: This tool hasn't been tested with RaSCSI board version 2.x.
# Capture data
```
# TODO: I need to rename the executable to scsimon
sudo ./scsishark
```
Press CTRL-C when you're done capturing. You'll want to save the .VCD file.
# Reviewing data
Install GTKWave and launch it
```
sudo apt install gtkwave
gtkwave&
```
Once GTKWave launches, open the .VCD file that was captured by scsimon.
* First, double-click on the "logic" item in the Signal Search Tree (SST) frame.
* Double-click each of the signals that show up below the SST frame. This will add them to the Wave panel.
* Now, you should be able to see all of the data presented.
<a href="./images/gtkwave.png"><img src="./images/gtkwave.png" width="400"/></a>