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By default, UART1 is can used by RS485 driver, we need to disable it, edit igep.ini file: <br>
→Configure UART1 and UART3 in IGEP with RS232 levels on J960 connector
To test UARTs we use UART1 (dev/ttyO0) and UART3 (dev/ttyO2) via J960 connector using RS232 standard.
<pre>board.ei485= yes
</pre>