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README_en.md

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English / 简体中文

2024-10-15 note

This keyboard is quite old. To be honest, I don't really like it. The keycaps are bad and non-standard, difficult to buy a third-party replacement. I haven't used it for a long time, so there may not be any updates in the future for this firmware.

Logitech G610 gaming keyboard firmware

INTRO:

This is a non-original firmware of the Logitech G610 mechanical keyboard.

You'll need to disassemble the keyboard and flash the bootloader with an ST-Link for the first time.

Warning: flashing a non-original firmware may break your keyboard, be careful.

Feature:

  1. Configs (brightness) save to EEPROM (delay 5 seconds).

  2. Game mode will turn off the two LEDs of the GUI key.

  3. Menu(Application) key turn into an "FN" key now.

  4. Switchable Insert key, by pressing FN + Insert, combination key like Ctrl + Insert are not affected.

  5. DFU upgrade mode, by pressing FN + Game Mode.

  6. Back to the official firmware by FN + F1.

  7. Holding GameMode when plugging in the USB cable, will go into DFU mode.

  8. Holding the backlight when plugging in the USB cable, will run the official firmware.

  9. Smearing light effect switch by FN + Light.

10.NumLock guard, 'don't touch my NumLock', switch by FN + NumLock.

Flash mapping

image

Note:

Use ./Src/usbd_hid.c and ./Inc/usbd_hid.h instead of the pair in ./Middlewares/ST/STM32_USB_Device_Library/Class/HID

coz every time the STM32CubeMX regenerate code they will be overwritten, so I move them out from the lib;

And don't forget to remove ./Middlewares/ST/STM32_USB_Device_Library/Class/HID/Src/usbd_hid.c from MDK source list

Bootloader:

https://github.com/lingex/STM32L_DFU_Solution/tree/Branch_128k

Important:

This branch is a non-standard use of STM32L100R8, by using the 64k~128k internal flash, to keep both official firmware and our firmware inside, can not download into the device directly using MDK, and no debug, st-link utility and dfu are feasible.

Flash steps

(You will need to install 2 software (not including the IDE): STM32 ST-LINK Utility and ST DfuSe Demo)

I did some modifications to the DfuSe Demo, see here: https://github.com/lingex/ST-DFUSe/releases

a.flash bootloader

STM32 ST-LINK Utility: Bootloader .hex (need a debug tool like ST-Link)

These are the SWD pins

image

image

b.flash official fw

STM32 ST-LINK Utility: Official_no_tail.hex (need a debug tool like ST-Link)

or ST DfuSe Demo： Official_app_only.dfu

c.flash this fw

STM32 ST-LINK Utility: G610Rebuild.hex (need a debug tool like ST-Link)

or ST DfuSe Demo: G610Rebuild.dfu

DFU Tool https://github.com/lingex/ST-DFUSe/releases

Flashback to official firmware (will also remove the bootloader):

STM32 ST-LINK Utility : Official_bootloader_and_app.bin (offset: 0x8000000)

Knowing issues

Thanks to:

  • media keys

https://github.com/diabolo38/HidKbd.git

  • ztask

https://github.com/tomzbj/ztask

  • hex2dfu

https://github.com/nanoframework/hex2dfu