AN3320

4.1.2 Interrupt-driven Driver

A short description of each file in the interrupt-driven driver is shown in the table below.

Table 4-2. Interrupt Driver Files
File	Contains
main.c	Code example for the interrupt-driven driver
OWIInterruptDriven.h	Configuration header file for the interrupt-driven driver
OWIIntFunctions.c	Implementation of the interrupt-handlers and helper functions
OWIIntFunctions.h	Header file for OWIIntFunctions.c

To get started with the interrupt-driven driver, follow the steps below:

Open the Atmel Studio 7 project or IAR project. (After downloading .atzip from Atmel START and importing in Atmel Studio 7 or IAR.)
Open the file OWIInterruptDriven.h for editing and locate the section named “User defines”
Change the defines in the “User defines” section to reflect the hardware setup
The project is now ready to be compiled
Open drain circuit needs to be connected at TXD and RXD pins as shown in the figure Open Drain Circuit

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