Controller peripheral: Difference between revisions
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The controller acts as a main peripheral device on the [[Maple_bus|Maple Bus]]. | The controller acts as a main peripheral device on the [[Maple_bus|Maple Bus]]. | ||
'''NOTE:''' Some information here is misleading and/or incomplete | |||
== Controller == | == Controller == | ||
Revision as of 00:59, 30 December 2022
The controller acts as a main peripheral device on the Maple Bus.
NOTE: Some information here is misleading and/or incomplete
Controller
The "get condition" command (0x09) with controller function code is used to poll controller state. A "data transfer" command (0x08) is returned with controller function code word plus 2 words of data. The returned data must be parsed differently depending on the function definition for the controller. The below sections show how to parse data for a standard controller.
First Data Transfer Word
All button bits are 0 when pressed and 1 when released.
| Byte 0 (LSB) | Byte 1 | Byte 2 | Byte 3 (MSB) |
|---|---|---|---|
| Left analog trigger 0 to 255 0: fully released 255: fully pressed |
Right analog trigger 0 to 255 0: fully released 255: fully pressed |
Button bits 0x01: Z 0x02: Y 0x04: X |
Button bits 0x01: C 0x02: B 0x04: A 0x08: Start 0x10: Up 0x20: Down 0x40: Left 0x80: Right |
Second Data Transfer Word
| Byte 0 (LSB) | Byte 1 | Byte 2 | Byte 3 (MSB) |
|---|---|---|---|
| Right analog stick up/down Always 128 (no controller uses this) |
Right analog stick left/right Always 128 (no controller uses this) |
Left analog up/down 0: fully up 128: center 255: fully down |
Left analog left/right 0: fully left 128: center 255: fully right |