Hi,
Ive been researching for a few weeks about installing klipper on my sunlu S8 with an Skr 1.4 turbo and 2209 drivers and my 2 ender-3 with skrmini v2.
I finally got around to trying to flash the sunlu S8 yesterday and it was a disaster. I wacthed this video(https://www.youtube.com/watch?v=N41JY1Gukuk&t=1214s) and read the github and klipper website.
I was having an issue with the mcu not able to connect. I updated the ID in the printer.cfg and same issue.(It had marlin in the name since I was previously running marlin) Finally I just tried going through the flashing process. I was stuck on the configuration under “Enable extra low level config” and tried the options from that video since I wasnt sure what to put in the usb and gpio pins sections. Nothing worked. Finally after searching the issue and reading a bunch of threads of issues that were similar but not same as mine. I uninstalled klipper, moonracker and mainsail from the Pi3b + and reinstalled. Added the stock SKR 1.4 turbo config and renamed it printer.confg. Made the Bin file using only the info provided in the board.cfg heading and made the file. Transferred it to an SD card and tried to flash the printer again. Previously I would get the mcu unable to connect but if I did “/dev/serial/by-id” I would get my boards Id with Marlin in the name. Now the Pi doesnt see an MCU connected at all.
The SD card does show that the BIN file changed to Cur.
I tried re flashing my previous marlin config and it also changes the file to Cur but the printer besides having power does not do anything. Not even hotend fan.
Did I brick my board some how?
Is there any way to salvage this?
Im sure I did something wrong just trying different options but from everything Ive read I cant find anyone who has bricked the board by trying to flash it.
This is my first time attempting klipper but Im typically good at at least following directions and rarely have an issue. (Especially with explicit instuctions.
Can someone help? I want to get my 2 ender 3’s updated but Im worried Ill have 3 dead printers.
Oh. And since I unistalled the previous klipper,mainsail,moonraker apps and configs I dont know what the ID of the board was anymore. “IF” it stayed the same since the sd card showed a .cur file.
Also I read about a bug causing issues with the printer ID but I dont seem to have the version mentioned.
…
Hi. I followed the directions from that page again and same issue.
As I said previously the board wont show connected in device manager on my regular pc or show connection in Kiuah. I had an old laptop that I also installed kiuah on but decided not to use it. SInce no changes where made to the initial setup I figured I go through everything fresh and try to build the firmware from there. Same issue.
I have another skr 1.4 turbo that I bought but never used. Figured maybe I screwed up the first board but the second one I could get the ID for. Id shows up on both my pc and in kiuah. Added it to printer.cfg and built the firmware. Transferred to SD, put it in the board gave it a minute, hit reset on the board, gave it another few minutes. Rebooted everything.
Now when checking for the ID:
#=======================================================#
No MCU found!
MCU either not connected or not detected!
#=======================================================#
2 boards down and Im really getting frustrated. It really seems like one of those situations where Im missing 1 small thing or missing something thats common knowledge to everyone else.
If someone could help I would be extremely appreciative. Just tell me what info you need or what I should check.
Hi. Yes thats exactly what I did. Step by step. I get the cur file on the SD card but its like the usb port just stops working after I flash. Happened to both boards using Rpi3b + and a laptop. Both firmware configured with kiuah script.
I just tried with my old SKR 1.4T and it works flawlessly.
A properly flashed Klipper serial for a SKR 1.4T needs to look like:
klipper@bigtreetech-cb1:~/klipper$ ls /dev/serial/by-id/*
/dev/serial/by-id/usb-Klipper_lpc1769_0C70001625813AAF86E06B5CC32000F5-if00
klipper@bigtreetech-cb1:~/klipper$
I hadnt tried another sd card, just a different USB cable.
I was using the 8gb sd card I think its class 10 (Its really small)that came with the sunlu s8. Ive used it for about the last year or 2 with that printer.
Today I did try a 32gb class 10 sd card and same issue. sd card shows the bin file changed to cur but still mcu not connected or detected.
@Sineos your screenshot is exactly how mine looks.
Should I try to connect with the Uart pins? Or any logs I can check to see what might have happened?
@sineos if you sent me your bin file I should be able to flash it correct? If yours flashes and shows up that would mean something is really screwed up on my end. If it still doesnt show up I just think its not meant for me to use Klipper.
Oh and thanks for taking the time to test on your own board.
Sorry for the delay. Here is the dmesg output in a text file. Its only showing 1 device from what Im seeing. Is it possible I erased or corrupted the bootloader?
I just think its weird that I get a cur file but the usb wont connect.
Did you follow the steps for obtaining the dmesg.txt outlined in the above link to the letter? If so, no USB connected printer board is recognized by the Linux Operating System.
