Hello Dialog Team,
We are using DA14580 on PAN1740 module.
The module is used on a coin battery powered products.
On the product a microcontroller communicates with DA14580 over UART.
We are experiencing with some modules connection problems.
We have noticed that it happens when battery voltage is higher like 3.1V - 3.3V.
First idea was signal level incompatibility (high level output of DA14580 is not smaller than 1.88V and ucontroller high level input threshold is bigger than 2.5V at 3.1V),
but signal levels look fine.
Can we run in some timing issues with higher supply voltage?
Is there any some more detailed description of IO levels (i.e. in relation to supply voltage)?