I’m checking in to get a better understanding of the HL7800 and its VGPIO as I am getting a bit of an odd behavior. For a bit of context, we are using it in a low power application with a Bluetooth chip as a remote monitoring solution. In order to know when the modem is in hibernate we track the VGPIO pin and then control the wake line accordingly.
This has worked well so far, however we have a unit that we’ve deployed overseas which is exhibiting signs of the VGPIO rising high without any solicitation from the Bluetooth chip. I haven’t been able to find anything explicitly in the control logic that would cause this and as far as I can see the VGPIO goes high / low when the modem is awake / asleep.
Would anyone have any potential thoughts on this?