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AM3354公司板子，软件修改ti-processor-sdk-linux-am335x-evm-03.03.00.04。因为要用到485通讯，将uart2和3改为485接口，请问TI有支持485的serial patch或者相关资料么？
请参考下面的帖子。https://e2e.ti.com/support/arm/sitara_arm/f/791/t/565580
你可以参考bbb的：https://blog.savoirfairelinux.com/en-ca/2013/rs-485-for-beaglebone-a-quick-peek-at-the-omap-uart/
硬件上加上一个控制收发的GPIO就可以了。
