martinayotte Posted July 21, 2019 Share Posted July 21, 2019 4 hours ago, freeman32 said: console=ttyS0,115200 ttyS0 is the debug port on the 3 pin header ... 2 hours ago, freeman32 said: do you think this can come from a right problem on port uart3 ? No ! Because I had this UART0 on my board when I've tested the UART3. Link to comment Share on other sites More sharing options...
freeman32 Posted July 21, 2019 Author Share Posted July 21, 2019 with armbian ubuntu bionic I can do this but not under the debian stretch : root@bananapim2plus:~# echo -e "\x7E\x03\xD0\xAF Hello" > /dev/ttyS3 root@bananapim2plus:~# cat /dev/ttyS3 ~P/ Hello with a wire between pin 8 and 10 but pitinfo dont working i don't know wy Link to comment Share on other sites More sharing options...
freeman32 Posted August 3, 2019 Author Share Posted August 3, 2019 up for help please Link to comment Share on other sites More sharing options...
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