SparkFun Forums

[Weng_K]

My current setup is the ICM-20948(https://www.sparkfun.com/products/15335) being connected to a Qwiic Cable - Breadboard Jumper(https://www.sparkfun.com/products/14425) to the arduino Uno directly.

I am running the Example basic program in the library
After uncommenting the debugging line, I received data underflow for everything possible.

I have also tried to wire both SPI(Defined SPI) and I2C and both had the same result, data underflow for everything.

Due to time constraints, I will not be able to order anything new and because of the time it will take to arrive.
I currently have the arduino uno kit and 2 qwiic connect cables.

(I am sorry if this may be a repeat but the other threads weren't helpful)

[jremington]

Why did you enable debugging?

Does the example work correctly if you disable debugging? That is, make the following statement a comment, as in the original?

Code: Select all

  //myICM.enableDebugging(); // Uncomment this line to enable helpful debug messages on Serial

[Weng_K]

I was hoping to find what might be wrong but it didn't do anything other than give me data underflow for everything.

I'm very sure the code works because I pulled it straight from the library and the IMU is sending something to the Arduino, but it all comes out as data underflow.

[Weng_K]

Here is my monitor

[jremington]

Please answer this question:

Does the example work correctly if you disable debugging?

[Weng_K]

The code works fine, it operates the same as if the debugging code was commented. There are no errors in compiling. But I can't say for sure if everything works because it all comes in as data underflow.
Thank you for your response.

[jremington]

If you get data underflow from the unmodified library example, regardless of the debug setting, you probably have a wiring problem, or a defective sensor.

[Weng_K]

Thank you for your advice, your assessment is very helpful.
If it wouldn't be a bother, do you think you can create a diagram of what you suppose your wiring setup would be?