lyttle123 / fusee_suite Goto Github PK

Nintendo Switch internal microcontroller-based payload loader/booter.

This consists of:
A Nintendo Switch v1 UNPATCHED CONSOLE
SAMD21 Device (Adafruit Trinket / Gemma / ItsyBitsy etc)
Part 1 of this software which is the SWITCHBOOT RCM bootloader that, once the chip is installed in your console, will trigger RCM mode.
Part 2 which is the actual payload loading software and chip settings...

I have been away for over 2 years so this is going to take me a while to get back correct. I can no longer access my old account on GBATemp.

Looks for "fusee.bin" in SD root and boots it.
If not found, looks for bootloader/update.bin( from SDSetup.com)

Hold VOL- to skip "fusee.bin" and run Hekate from default location(bootloader/update.bin). Customise in menu
"Payload" feature removed. Pointless... Possibility of changing to incorrect payload.

Hold VOL+ to enter config menu.

First option: Toggle autoRCM. Release at first LONG flash... Or
keep holding to:
TWO FLASHES: Release at any point within the 2 flashes. RGB LED brightness(0-250). Hit VOL+ at your desired brightness
keep holding to:
THREE FLASHES+HOLD UNTIL SLOW FLASHING ON AND OFF - (steady flashing(White on Adafruit boards)): Chip Eeprom reset + SAMD21 update mode on next reboot. Returns to normal on subsequent reboots.

Faster boot time. Faster animation(can be disabled easily in hex editor or download the binary UF2)
Screen dimming/ Screensaver(if screensaver variable is 0, screen will auto-dim to save battery.)
Removed regenerate SXOS licence now they are dead.
Green text because it looks nicer.
Reboot bootloader option.
About option - take a read.
Unused stuff deleted from old Hekate base - Smaller binary size(you won't notice as UF2 = 512kb)

Bootlogo support and manager. View / select up to 2 bootlogos:

For Atmosphere: Drop your BMP anywhere and choose from within the app, with preview. Or place directly into atmosphere/splash.bmp

For Hekate: Drop your BMP anywhere and choose from within the app, with preview. Or place directly into bootloader/bootlogo.bmp

Bootlogos are chosen depending on payload in use. For example: If not using "fusee.bin", bootloader/bootlogo.bmp will be rendered.
If fusee.bin is being used splash.bmp will be rendered, if fusee is present but overridden with VOL-(to boot Hekate), bootlogo.bmp will be rendered.

Payload feature could have been set on to an unused payload "slot", causing confusion when incorrect payload is "selected" inadvertantly. Cheap chargers(ie Venom) are not as clean as stock Nintendo. This was resulting in random reboots, disconnecting the joycon and messing with the volume.
Poor intermittent joycon CHARGING connection resulting in random reboots. This was due to USB strap being activated by less-than-perfect joycon pin cleanliness. Keep pins clean!
Too many unused features being accessible from just pressing VOL+. Confusing for people.

Removed payloadX. Really no need for it.
Only 3 operations needed on the chip now, all accessible from long press VOL+.
Reworked USB strap code to only place a wakeup interrupt in the following conditions:

• ChipRCM(autoRCM chip-based) is enabled
• Launch has failed(as it would when plugged into PC USB)
• USB voltage is detected(may not activate if battery is 100% and charger isn't doing anything).
• Values no longer stored to EEPROM for the USB strap

Supported microcontrollers:

• Trinket M0
• RCMX86
• Rebug
• Gemma M0
• Itsybitsy M0
• Feather M0