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=== Test ===
Connect UART2_TX with UART2_RX. Use minicom to prove UART2 (/dev/ttyS1) :<br><pre>minicom -D /dev/ttyS1</pre>If you write characters and see the echo on the screen, you configure well UART. {| cellspacing="1" cellpadding="1" border="1" width="200"|-| [[Image:uart2|800x500px]][[Image:Uart2_igepv2_j990_connector.png|800x500px]]|}