I try to use LCD4 cape and RS232 cape together but it conflict with UART2 port. Then I google the problem and find this blog ( http://www.berriman.co.uk/beaglebone-black-with-rs232-cape/). They modify the device file and change RS232 port to uart1. But it does not working for me( or LCD4). When I did everything and reboot BBB, the ttyO2 is still there. And RS232 and LCD4 is still conflict.
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