ZeroWalker Posted October 30, 2017 Posted October 30, 2017 As title says, i am try to get the flash thing going on the UART0 on the OPI Zero (the debug ports i guess). But i got no luck, anyone has any experience with this? Thanks:)
gungsukma Posted November 6, 2017 Posted November 6, 2017 Because UART0 is already used as debug, as you guess. Why not use UART1 /dev/ttyS1 (Pin #8 = TX, Pin #10 = RX)? (I use mainline kernel) mkdir /sys/kernel/config/device-tree/overlays/uart1 cat /boot/dtb/overlay/sun8i-h3-uart1.dtbo > /sys/kernel/config/device-tree/overlays/uart1/dtbo reboot
martinayotte Posted November 6, 2017 Posted November 6, 2017 11 hours ago, gungsukma said: mkdir /sys/kernel/config/device-tree/overlays/uart1 cat /boot/dtb/overlay/sun8i-h3-uart1.dtbo > /sys/kernel/config/device-tree/overlays/uart1/dtbo reboot Working with /sys/kernel/config/device-tree/overlays are volatile commands. Doing a "reboot" after is completely useless ! If you wish the overlays been present at boot time, either doing the /sys/kernel/config/device-tree/overlays above commands in /etc/rc.local or enable then in u-boot using "overlays=uart1" in /boot/armbianEnv.txt
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