How do I set up a I2C Bus Decode?
The procedure to set up a I2C bus decode and trigger is simple once you understand the basics. First you have to have the correct module or scope option. Second make sure your signal is on screen and taking up as much of the DAC as possible with good resolution, this will require having proper probes and knowledge about your signal. Turn on the bus, and start by setting the channel and threashold levels. Once this is done you will begin to see your signal decode. Adjust some of the small things such as Read/Write in the Address and how you want to have the bus displayed such as Hex or binary. For a complete demonstration or further details watch the following video or look through the User Manual for more details.
If you trying to decode on a Windows XP or Windows 7 scope the options will be different and more information can be found on their corresponding datasheet pages. Many of the concepts of decoding and triggering on a bus signal are the same same and can be applied from the lower end oscilloscopes.
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