MCC 152 can be detected but unable to open port

BBC · September 16, 2022

SPI and I2C are both enabled. When I run the MCC DAT HAT Manager it is able to detect the MCC 152 from the List devices

image.png.51cd1479da0258fdcc2f117d20400a00.png

The address is correct but I am unable to open the device and write signal to the DIO and AO.

image.png.da10ae229f505fd920771bc96252a92d.png

Is there anything I am missing? I am running the latest Raspbian on Pi 4 with Python 3 installed.

Is there anything I can check or probe on the HAT to verify it is working?

Thank you.

Leon

Jeffrey · September 19, 2022

What happens when you click on "Open"?

Does it display an error? and if so, what is it?

BBC · October 5, 2022

I tested the hat against another RPI (3B) and it's working fine. I think the original RPI (4B) that I used was defected.

I had another hat stacked (RPI CAN Hat shield) along with the MCC-152 and that might have messed up the SPI pins...

Thanks for the reply though.

BTW there was no error message and no response if I tried to open the device from the GUI program.

If I tried to run the python program I get a message "Error during opening port [...]".

Edited October 5, 2022 by BBC

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