geocut Posted August 12, 2017 Share Posted August 12, 2017 Hi, I trying to use UART 1 & UART 2 at OPi Zero 2 Plus with no success with armbian stable and ubuntu server. I test all combinations, of fex settings, turn off everything except required uarts, set uart_type = 2 and etc, and it did not connect. UART0 and UART3 works fine, but I need cts-rts lines from uart2 for hi speed (it's uart_type = 4, but I would like to start regular uart first). tested with picocom, ft232 & pl2303 I use 8 & 10 pins for uart 1 and 11&13 for uart2 as described at http://linux-sunxi.org/Orange_Pi_Zero Is it correct pins? Thanks Link to comment Share on other sites More sharing options...
martinayotte Posted August 12, 2017 Share Posted August 12, 2017 OPiZero and OPiZeroPlus2 are not the same, therefore schematics are not the same and UART2 header pins neither... http://linux-sunxi.org/Xunlong_Orange_Pi_Zero_Plus_2 UART1 is not exposed on header since it is connected to BlueTooth. UART2 : TX=10, RX=12, CTS=15, RTS=22. Link to comment Share on other sites More sharing options...
geocut Posted August 12, 2017 Author Share Posted August 12, 2017 wow! thanks! but how do you know that? Where I can find full set of headers of Zero 2 plus? Link to comment Share on other sites More sharing options...
zador.blood.stained Posted August 12, 2017 Share Posted August 12, 2017 5 minutes ago, geocut said: Where I can find full set of headers of Zero 2 plus? In the schematics: https://linux-sunxi.org/File:ORANGE_PI-ZERO-PLUS2_V1_0.pdf Link to comment Share on other sites More sharing options...
geocut Posted August 12, 2017 Author Share Posted August 12, 2017 found it at Ext Port and CPU pages. Thanks. Link to comment Share on other sites More sharing options...
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