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Into the ''Peripheral Interfaces'' box, right-click on UART2 device and choose ''View Pins''
[[File:UART2 Pin Mux Configuration 1.png|500px]]
''UART2 Interface View'' window opens and we can see the various UART2 options.
[[File:UART2 Pin Mux Configuration 2.png|500px]]
User can easily see that the pin we choose are already configured for GPMC peripheral. However, in our example design, we suppose that we don't need those lines.
Double click on ''Fcn6'' column of AE23 and AD23 ball
[[File:UART2 Pin Mux Configuration 3.png|500px]]
As you can see, the Pin Mux Utility warn about a usage conflict. Double click on both lines in column ''Fcn5'' to remove GPMC usage of those pins and the error disappears.
[[File:UART2 Pin Mux Configuration 4.png|500px]]
Now the Pin Mux Utility allow the user to export the generated source code. See [http://processors.wiki.ti.com/index.php/Pin_Mux_Utility_for_ARM_MPU_Processors TI wiki article] for more details.
