Please forgive my rudeness.
Is this post attempting to run native openWrt on IPQ5018 devices?
I have a Xiaomi AX6000 that also uses this CPU, and I would like to receive a hint from here. My current ability is limited to installing Openwrt for devices (such as Redmi AX6000) according to the existing content in the wiki. What do I need to learn? Or what keywords should I search for?
If you could give me some guidance, I would be extremely grateful.
This is the second device that is looking to get accepted by native Openwrt, the first was the Linksys MX5500:
I'd recommend opening your own thread, opening the housing and detailing the serial port, etc.
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Thanks for your reply. I'm already opening the housing and upload the images, but, there is no solder joint indicating it is a serial port.
This is my circuit board. I guess the four holes on the angle measurement are serial ports, but I don't know how to test them
jb1 sure looks like a uart header ...have you tested it with multi meter ? It looks like vendor has removed resistor for rx .. you'll need to bridge it with small resistor or a blob of solder
emmm, no, what should I test? Resistance? Voltage? Or what else?
test for voltage, it should be ~1.8v or ~3.3v
EDIT looks to me like it maps like this
jp1
o - rx likely low .. 0v <-- will need to be bridged
o - vcc 1.8 or 3.3v steady
o - gnd
o - tx fluctuates 0-1.8v or 0-3.3v on reboot
board edge
I tried it.
Or I should edit it like this?
j81
o - vcc 1.8 or 3.3v steady
o - gnd
o - rx likely low .. 0v <-- will need to be bridged
o - tx fluctuates 0-1.8v or 0-3.3v on reboot
board edge
I can't clearly gnd and rx...
ok so like this
j81
o - vcc 1.8v
o - rx <-- needs to be bridged
o - gnd
o - tx 1.8v
you need a 1.8v usb ttl converter ..something simular to --> 1.8v / 3.3v / 5v configurable usbttl adapter
Could arduino take on zhis job? Like this
no arduino is uart is 5v, you would need a 5v to 1.8v level shifter. I think results would be flaky at best even with the shifter. you can get a 1.8v ttl for 1-2$ if you look around. I just find the universal one to be the best buy as it covers most all embedded devices.
OK, I bought it, I will reply to you after receiving the goods
1 Like
windows, driver for the ttl-usb is ready
ok, so upon a second look, i don't think you'll need to connect the missing resistor. Going from what you've provided, you've got power on the pin 1, despite with the missing resistor at point (R6816). With this I would assume the pinout to be
ROUTER <-------------------> TTL
o- vcc ------>No connection
o- rx --------> connect to TX on TTL
o- gnd -----> connect to GND on TTL
o- tx--------> connect to RX on TTL
are you using a linux station or windows ?
windows, driver for the ttl-usb is ready
I got something by putty, what should I sand out?
SSH is unlock , should I restore factory settings?
wouldn't hurt to reset to factory. i would create a backup first...
afterwards grab the complete bootlog from putty and post.
May be useful - I was able to use https://github.com/openwrt-xiaomi/xmir-patcher to get SSH, dump partitions etc after downgrading firmware to 1.0.5.1 (miwifi_ra72_firmware_b0f85_1.0.51.bin). Away from device for a few days but happy to get data from device if needed (also have serial if needed).
Okay, I've captured all the output from power-on until SSH becomes ready (without performing a factory reset - I'll do the factory reset later if needed). What should I send you now? All of them?
Thank you! My device is now accessible via SSH. We're currently working on obtaining native OpenWrt support for it.