Is the Anet A8 display functionally?

[Skudderon]

Hi, i used the printer.cfg for Anet A8. Works fine if display section is commented out. If i activate this i get this message in terminal:

"Send: status Recv: // Unknown command: hd44780_send_cmds Recv: // This type of error is frequently caused by running an older Recv: // version of the firmware on the micro-controller (fix by Recv: // recompiling and flashing the firmware). Recv: // Once the underlying issue is corrected, use the "RESTART" Recv: // command to reload the config and restart the host software. Recv: // Protocol error connecting to printer Recv: !! Unknown command: hd44780_send_cmds Recv: ok"

Klipper is up to date: "Send: N1 M115*39 Recv: ok FIRMWARE_VERSION:v0.6.0-41-gbdd26e4 FIRMWARE_NAME:Klipper What can i do?

Best Regards

[dragonnn]

Recv: // This type of error is frequently caused by running an older Recv: // version of the firmware on the micro-controller (fix by Recv: // recompiling and flashing the firmware).

Insert facepalm gif.

[Skudderon]

So? Then tell me whats newer then 0.6.0-41??? using same emoji

[dragonnn]

Klipper is up to date but the microcontroler part not. You need just to reflash you board like you did it first time installing klipper.

[Skudderon]

I did it yesterday. The error was after update. Thats why i posted: Recv: ok FIRMWARE_VERSION:v0.6.0-41-gbdd26e4 FIRMWARE_NAME:Klipper

[dragonnn]

Did you run make clean and make before make flash?

[Skudderon]

No i didnt. I used the way in: https://github.com/KevinOConnor/klipper/blob/master/docs/FAQ.md#how-do-i-upgrade-to-the-latest-software

[dragonnn]

Then try this: make clean make make flash FLASH_DEVICE=/dev/ttyACM0

[Skudderon]

The make flash command does not work with Anet board. So i used: avrdude -p atmega1284p -c arduino -b 57600 -P /dev/ttyUSB0 -U out/klipper.elf.hex like in the net A8 config file written.

[dragonnn]

Doesn't matter, important is to use make and make clean to rebuild the firmware.

[Skudderon]

"pi@octopi:~ $ make clean make make flash FLASH_DEVICE=/dev/ttyACM0 make: *** No rule to make target 'clean'. Stop.!

[dragonnn]

Not in one line. Every command is separate

[Skudderon]

oh, ok thx

[dragonnn]

And first you need to change folder with cd where you have klipper instaled

[Skudderon]

THIS was the point ;-) thanks

[Skudderon]

So finaly the display is online and i found the mistake. I used ONLY the command from printer.cfg (for Anet A8). I have to use BOTH commands (make flash ... AND avrdude ...)

Thanks for your help!