MKS SGEN V1 LPC1679 SD firmware update troubles

OiD-W · March 29, 2025, 11:33pm

Basic Information:

Printer Model: Ender 5
MCU / Printerboard: lpc1769 MKS SGEN V1, Fysetc UCAN, BTT EBB42 V1.2. [v0.12.0-468-gd679f711e]
Host / SBC: Intel Celeron all in one x86 [v0.12.0-468-gd679f711e]
klippy(62).log (7.4 MB)

Describe your issue:

…

LPC1769 based board from the Smoothieboard era. Checked 20 times, zoomed in with a loupe and taken photos. It IS a 1769 and not a 1768.
Tested with an 8GB card and a 2GB card. Fat32,
This happens on Raspberry Pi 3b+ and Pi 4 as well.

I’m trying to flash the klipper.bin file when updating the FW to the SD card with:

./scripts/flash-sdcard.sh /dev/serial/by-id/usb-Klipper_lpc1769_1320000C261928AF9E93995BC52000F5-if00 generic-lpc1769

The result is the following:

Already up to date.
Flashing /home/aio/klipper/out/klipper.bin to /dev/serial/by-id/usb-Klipper_lpc1769_1320000C261928AF9E93995BC52000F5-if00
Checking FatFS CFFI Build...
Connecting to MCU...Connected
Checking Current MCU Configuration...Done
MCU needs restart: is_config=1, is_shutdown=0
Attempting MCU Reset...Done
Waiting for device to reconnect...Done
Connecting to MCU...Connected
Initializing SD Card and Mounting file system...

SD Card Flash Error: Failed to Initialize SD Card. Is it inserted?
Traceback (most recent call last):
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 1323, in _configure_mcu_spibus
    self.fatfs.mount(printfunc)
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 326, in mount
    raise OSError("flash_sdcard: failed to mount SD Card, returned %s"
OSError: flash_sdcard: failed to mount SD Card, returned FR_NOT_READY

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 1646, in main
    spiflash.run()
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 1586, in run
    self.run_reactor_task(self.run_sdcard_upload)
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 1569, in run_reactor_task
    k_reactor.run()
  File "/home/aio/klipper/klippy/reactor.py", line 292, in run
    g_next.switch()
  File "/home/aio/klipper/klippy/reactor.py", line 340, in _dispatch_loop
    timeout = self._check_timers(eventtime, busy)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/aio/klipper/klippy/reactor.py", line 158, in _check_timers
    t.waketime = waketime = t.callback(eventtime)
                            ^^^^^^^^^^^^^^^^^^^^^
  File "/home/aio/klipper/klippy/reactor.py", line 48, in invoke
    res = self.callback(eventtime)
          ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 1541, in run_sdcard_upload
    self.mcu_conn.configure_mcu(printfunc=output_line)
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 1358, in configure_mcu
    self._configure_mcu_spibus(printfunc=printfunc)
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 1326, in _configure_mcu_spibus
    raise SPIFlashError(
SPIFlashError: Failed to Initialize SD Card. Is it inserted?

I’ve been trying a few different bootloaders and the by Smoothieware is the one I’ve been using (i’ve not found another bootloader that is for the LPC1769 and as the MKS SGE V1 is a “smoothieware” compatible board…).

Any ideas on how to get this working? Or a different bootloader to try?

Thanks as always!!!

EddyMI3D · March 30, 2025, 8:24am

Have you tried FAT16?

Sineos · March 30, 2025, 8:26am

It was years ago since I last used flash-sdcard.sh for my LPC boards, but I remember that it had mixed success. One time it worked, and the next day it failed for whatever reasons.

I finally upgraded all to the Katapult bootloader and was done with it. So if you feel like doing so, find an instruction here: CanBoot: Flash BTT SKR 1.3 / 1.4 / 1.4 Turbo

OiD-W · March 30, 2025, 11:39am

I cannot explain my inner disappointment in myself… WHY did i overlook this

@Sineos I will also definitely check this out. The bootloader I’m using is 11 years old.

Thanks!!

OiD-W · March 30, 2025, 5:34pm

Dangit! Was too good to be true!!!

Made a partition with less than 512MB, tried FAT16 [0x0e], FAT16(LBA) [0x06] and both 2GB and 8GB cards are no longer working! The error does seem to be different from before tho!

Flashing /home/aio/klipper/out/klipper.bin to /dev/serial/by-id/usb-Klipper_lpc1769_1320000C261928AF9E93995BC52000F5-if00
Checking FatFS CFFI Build...
Connecting to MCU...Connected
Checking Current MCU Configuration...Done
MCU needs restart: is_config=1, is_shutdown=0
Attempting MCU Reset...Done
Waiting for device to reconnect....Done
Connecting to MCU...Connected
Initializing SD Card and Mounting file system...

SD Card Information:
Version: 2.0
SDHC/SDXC: True
Write Protected: False
Sectors: 15564800
manufacturer_id: 2
oem_id: TM
product_name: SD08G
product_revision: 3.56
serial_number: C3564D8B
manufacturing_date: 7/2009
capacity: 7.4 GiB
fs_type: FAT16
volume_label: b'SMOOTHIE'
volume_serial: 1051792695
Uploading Klipper Firmware to SD Card...
SD Card Flash Error: Error Uploading Firmware
Traceback (most recent call last):
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 1378, in sdcard_upload
    sd_f.write(buf)
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 464, in write
    raise OSError("flash_sdcard: Error writing file '%s'" % (self.path))
OSError: flash_sdcard: Error writing file 'firmware.bin'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 1646, in main
    spiflash.run()
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 1586, in run
    self.run_reactor_task(self.run_sdcard_upload)
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 1569, in run_reactor_task
    k_reactor.run()
  File "/home/aio/klipper/klippy/reactor.py", line 292, in run
    g_next.switch()
  File "/home/aio/klipper/klippy/reactor.py", line 340, in _dispatch_loop
    timeout = self._check_timers(eventtime, busy)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/aio/klipper/klippy/reactor.py", line 158, in _check_timers
    t.waketime = waketime = t.callback(eventtime)
                            ^^^^^^^^^^^^^^^^^^^^^
  File "/home/aio/klipper/klippy/reactor.py", line 48, in invoke
    res = self.callback(eventtime)
          ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 1548, in run_sdcard_upload
    self.firmware_checksum = self.mcu_conn.sdcard_upload()
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/aio/klipper/scripts/spi_flash/spi_flash.py", line 1381, in sdcard_upload
    raise SPIFlashError("Error Uploading Firmware")
SPIFlashError: Error Uploading Firmware

Edit: This time it’s done something to the SD card and the mainboard is not recognized by Klipper. Going to look into the Klipper bootloader.

Sineos · March 30, 2025, 5:40pm

Well, we had cases where someone tried 5 different SD cards until it worked. The SD card reading capabilities of these printer boards are finicky at best.
For the long term, I can only recommend going with the Katapult bootloader.

OiD-W · March 30, 2025, 7:56pm

Had some trouble with the Build Katapult deployment application.
Ended up using the 16KiB bootloader, but not using the deployer.bin instead only flashing the katapult.bin.

Finally!! A way to update all boards!

Thanks!

service klipper stop
cd ~/klipper
git pull

#UPDATE MKS SGEN V1
make clean KCONFIG_CONFIG=config.oid-mks-sgenl-v1
make menuconfig KCONFIG_CONFIG=config.oid-mks-sgenl-v1
make KCONFIG_CONFIG=config.oid-mks-sgenl-v1
make flash FLASH_DEVICE=/dev/serial/by-id/usb-Klipper_lpc1769_1320000C261928AF9E93995BC52000F5-if00

#UPDATE BTT EBB42 V1.2
make clean KCONFIG_CONFIG=config.oid-ebb42
make menuconfig KCONFIG_CONFIG=config.oid-ebb42
make KCONFIG_CONFIG=config.oid-ebb42
python3 ~/katapult/scripts/flashtool.py -i can0 -f ~/klipper/out/klipper.bin -u 76f387ebdd7f

#UPDATE FYSETC UCAN
make clean KCONFIG_CONFIG=config.oid-UCAN
make menuconfig KCONFIG_CONFIG=config.oid-UCAN
make KCONFIG_CONFIG=config.oid-UCAN
python3 ~/katapult/scripts/flashtool.py -i can0 -u 9da2407d323f -r
make KCONFIG_CONFIG=config.oid-UCAN flash FLASH_DEVICE=/dev/serial/by-id/usb-katapult_stm32f072xb_38002C001857435438353920-if00

service klipper start

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MKS SGEN V1 LPC1679 SD firmware update troubles

Basic Information:

Describe your issue:

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