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* Bring BCT.md into the modern age. It was terribly outdated. * Added notes on debugging modes
73 lines
2.8 KiB
Markdown
73 lines
2.8 KiB
Markdown
# BCT.ini
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BCT.ini is the configuration file used by fusée-primary and fusée-secondary. It is read by fusee-primary.bin to setup and boot fusee-secondary.bin and is also read by fusee-secondary.bin to configure Exosphère, specify the environment it should boot, or configure other miscellaneous options such as setting a custom boot splashscreen.
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## Configuration
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This file is located in the `atmosphere` folder on your SD card. The default configuration file will look similar to this.
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```
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BCT0
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[stage1]
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stage2_path = atmosphere/fusee-secondary.bin
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stage2_addr = 0xF0000000
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stage2_entrypoint = 0xF0000000
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[exosphere]
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; Note: Disabling debugmode will cause parts of ams.tma to not work, in the future.
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debugmode = 1
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debugmode_user = 0
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[stratosphere]
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; To force-enable nogc, add nogc = 1
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; To force-disable nogc, add nogc = 0
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```
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## Adding a Custom Boot Splashscreen
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Add the following lines to BCT.ini and change the value of `custom_splash` to the actual path and filename of your boot splashscreen.
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```
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[stage2]
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custom_splash = /path/to/your/bootlogo.bmp
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```
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The boot splashscreen must be a BMP file, it must be 720x1280 (1280x720 rotated 90 degrees left/counterclockwise/anti-clockwise) resolution, and be in 32-bit ARGB format. You can use image editing software such as GIMP or Photoshop to export the image in this format.
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## Configuring "nogc" Protection
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Nogc is a feature provided by fusée-secondary which disables the Nintendo Switch's Game Card reader. Its purpose is to prevent the reader from being updated when the console has been updated without burning fuses from a firmware lower than 4.0.0, to a newer firmware that is at least 4.0.0 or higher. By default, Atmosphere will protect the Game Card reader automatically, but you are free to change it.
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To change its functionality, add the following line to the `stratosphere` section and change the value of `X` according to the following list.
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```
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nogc = X
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```
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```
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1 = force-enable nogc, so Atmosphere will always disable the Game Card reader.
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0 = force-disable nogc, so Atmosphere will always enable the Game Card reader.
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```
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## Changing Target Firmware
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Add the following line to the `exosphere` section and replace the `X` according to the following list if you have trouble booting past the firmware version detection.
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`target_firmware` is the OFW major version.
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```
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target_firmware = X
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```
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```
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1.0.0 = 1
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2.X.X = 2
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3.X.X = 3
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4.X.X = 4
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5.X.X = 5
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6.X.X = 6
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6.2.0 = 7
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7.X.X = 8
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```
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Note that 6.X.X indicates 6.0.0 through 6.1.0.
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## Configuring Debugging Modes
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By default, Atmosphere signals to the Horizon kernel that debugging is enabled while leaving usermode debugging disabled, since this can cause undesirable side-effects. If you wish to change these behaviours, go to the `exosphere` section and change the value of `X` according to the following list.
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```
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debugmode = X
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debugmode_user = X
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```
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```
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1 = enable
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0 = disable
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```
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