2025-06-19 6:45 AM
Hello everyone
I would like to generate two different interrupts (INT1 and INT2) to detect free fall and tap.
I am using MEMS studio to verify the configuration of the registers.
I am using a F401RE development board with an IKS4A1 expansion that integrates the LIS2DUXS12 sensor.
Question 1) why is the Sensor evaluation->Interrupt->Acc interrupt page not showing the signal for interrupt 2?
Question 2) why are the options to enable INT2 interrupts not made available?
Question 3) I have done many tests but INT2 seems to be unmanaged. I have simplified everything to a very simple test: in the interrupt config I select Free Fall [INT1] (which works and is represented) and then manually edit the MD2_CFG register setting it to 0x10 (so that I can be sure that the configuration for free fall is correct and then I enable the FF route on INT2 as well)
I would expect that by exporting the data via the save to file page to see an output where two interrupts change together. Instead, what I get is just the data change in column "interrupt 5" which seems to represent the value of INT1.
Reading through AN5812 I don't seem to see any limitations that should not allow me to perform this check.