ESP32 Restarts after interrupt detect

[pschoon]

Ji,

My first ESP32-S3-Wroom project with a button panel controlled with I2C.

I'm using the MCP23017 2x8 GPIO chip. Port A is button contacts, Port B is button Led control.
For reading out the buttons I use the chips IntA bus.
When configured in FC as Interrupt and all is setup the ESP32 is fully resetting at interrupt detect.
I checked several GPIO ports as Interrupt and all behave the same.
To check the ESP32 I use UART0 for readout in a terminal.

Now i configured a software interrupt in the main loop and that is working fine.

What do i oversee?

[mnfisher]

How are you reading the mcp23017 in the interrupt - if using i2c then you can not do this in the interrupt handler. You need to have a task that reads (either separate or in main) this - and the interrupt handler signals that there is a signal.

See
https://flowcode.co.uk/forums/viewtopic.php?t=3098 for some ideas.

Martin

[pschoon]

thanks