Hi, I'm programing an xc864, in my program I use the UART comunication and the power down unit, with the idea that the module remains in power down until an interrupt (EXINT0) wakes it up and then it starts a UART comunication (RX).
The problem is that UART comunication is done by interrupt, an it works until we enter in the power down mode.
It seems like the interrupt associated to the "RI" (Reception Interrupt) of the UART stops working after waking up.
There are some instructions we must do after waking up in order to get the UART interrupt working again?
cheers,