CY8CMBR3116 - Host interrupt line problem | Cypress Semiconductor
CY8CMBR3116 - Host interrupt line problem
I'm using CY8CMBR3116 CapSense controller in my project. HI is configured on pin23 (SPO0), CSx pins also - related to connected buttons.
In datasheet p.15 it is described that HI should be enabled in every change of CSx.
How it should be (according to datasheet)
On button activation HI goes low for THI after this time back to high,
on release goes low for THI after this time back to high. (Figure 10)
How it works
On button activation HI goes low and stays as long as button is pressed.
It will go high only on release.
Because of this it is not possible to detect action on other button (without pooling) while other is pressed.
I couldn't find any description how to use it like in datasheet and also I couldn't find anything to configure in register map.
So where is the problem, hardware or missing configuration?