I am trying to view i2c signals on the expensive as heck oscilloscope at work and am having problems.
Two signals on two channels. Clock and Data.
I have two devices communicating with each other using i2c. The master sends a request to the slave and the slave replies. This only happens once and for about a second. It happens every time I power up both devices.
I tried different triggering modes and triggering on the clock and data lines and etc. It feels like I tried everything. No matter what, I see the two digital signals appear for a second and they are gone. I need to catch them so that I can analyze them.
Here is the scope I am using. http://www.testequity.com/products/3580/
It actually has an i2c bus mode and automatically converts the clock and data into hex values right above the signals. I have used it before and successfully. But in order to use it, I first have to catch the signals.
If you don't know how i2c works, its a serial communication protocol with voltages 0-5V and has speeds in the kHz range.
Can you please give me some advice on how to catch my signals?
Much appreciated.
Two signals on two channels. Clock and Data.
I have two devices communicating with each other using i2c. The master sends a request to the slave and the slave replies. This only happens once and for about a second. It happens every time I power up both devices.
I tried different triggering modes and triggering on the clock and data lines and etc. It feels like I tried everything. No matter what, I see the two digital signals appear for a second and they are gone. I need to catch them so that I can analyze them.
Here is the scope I am using. http://www.testequity.com/products/3580/
It actually has an i2c bus mode and automatically converts the clock and data into hex values right above the signals. I have used it before and successfully. But in order to use it, I first have to catch the signals.
If you don't know how i2c works, its a serial communication protocol with voltages 0-5V and has speeds in the kHz range.
Can you please give me some advice on how to catch my signals?
Much appreciated.