Oke Here’s my pickle
i want to use a radxa zero 1.51 with a flightcontroller which is connected with an uart and got this to work with a connection from pin 27 and 28 (UART_AO_B_RX, UART_AO_B_TX),
running with radxa-zero-ubuntu-focal-server-arm64-20220801-0346-mbr.img.xz (any image after that doesnt want to boot, i think i pretty much tried them all, that came after 0801)
and adding overlays=meson-g12a-uart-ao-b-on-gpioao-2-gpioao-3 to the uEnv.txt
i power the zero with gpio pins 2 and 6 (5v,gnd) so i have a free OTG usb port
for my drone project, i have very limited space and want to limit weight as much as possible
i need 2 devices connected with usb (4g dongle and usb cam). Both work fine with a usb hub connected to the Host usb port.
i want to remove the usb hub ( due limited space and weight), and use the usb otg port
but it doesnt work with radxa-zero-ubuntu-focal-server-arm64-20220801-0346-mbr.img.xz image
i also tried Armbian_22.11.1_Radxa-zero_jammy_edge_6.0.10.img.xz, on which the usb otg port WORKS FINE as a host usb
but the problem with Armbian is the lacking uart support, i cant get the uart connection to work with armbian
to fix the usb problem i already tried to install the latest kernel by using https://wiki.radxa.com/Zero/dev/kernel instructions, but without success
- how can i get the otg usb port to work as a host usb on a radxa-zero-ubuntu (or debian) build?
- or how do i get &uart_AO_B to work with an armbian build?
- can we plz have some working latest radxa zero images
i did some comparing of kernel board specific source code
for the usb problem i compared meson-g12a-radxa-zero.dts
both are the same at the lines:
status = “okay”;
for the uart problem:
could i just create a new overlay to add on armbian with the source code from meson-g12a-uart-ao-b-on-gpioao-2-gpioao-3.dts ?
i also read there is 5.19 kernel from radxa, but i cant find it on github, can anyone point me where it is?