d05f1fb295
- Added servo controller SPI fake communication Behaves as a closed but empty tray - Added pointing device emulation MiSTer joystick data used as input Behaves like a maneuvering device - Added SCI IRQ to 6805 cpu core - Added SPI and SCI to 6805 uC - Fixed spurious 68k chip select for slave - Added documentation about I2C to the Front LCD - Simulated U3090MG no longer causes front panel button presses Lead to spurious IRQs before - Removal of slave memory patches
1.7 KiB
Input Device
Sources
https://www.theworldofcdi.com/open-source/hardware-development/the-cd-i-controller-interface/ https://www.theworldofcdi.com/open-source/hardware-development/cd-i-gamepad-adapter/ https://github.com/anarterb/SNEStoCDi/blob/master/sketchSNEStoCDi.ino
Communication starts with device sending 0b11001010 to CD-i player.
Afterwards a frame of 3 is transmitted
Idle state:
0= 0b11000000
1= 0b10000000
2= 0b10000000
Data format
- Protocol for Maneuvering Device
Only 7 bits. The 8th bit is always 1.
Byte 0 -> 1 1 B1 B2 Y7 Y6 X7 X6
Byte 1 -> 1 0 X5 X4 X3 X2 X1 X0
Byte 2 -> 1 0 Y5 Y4 Y3 Y2 Y1 Y0
Spoon
Baud rate is 1200
Spoon Start
CA C0 80 80 This is Manuvering Device + No button Press
CA FF ??
FE ??
CA C0 80 80 This is Manuvering Device + No button Press
Spoon D-Pad Left
C3 BE 80 Permanently
C3 B8 80 After a while
Spoon D-Pad Right
C0 82 80 Permanently
C0 88 80 After a while
Spoon D-Pad Up
CC 80 BE Permanently
Spoon D-Pad Down
C0 80 82 Permanently
Spoon Left Press
E0 80 80 Transmitted once
Spoon Left Release
C0 80 80 Transmitted once
Spoon Right Press
D0 80 80 Transmitted once
Spoon Right Release
C0 80 80 Transmitted once
This means:
The right button is B2. The left button is B1.
The speed increments over time It starts with 2 and changes to 8. The relativ coordinates are two's complement.
Pressing left is negative X. Pressing right is positive X. Pressing up is negative Y. Pressing down is positve Y.
When the D-Pad is pressed, the Spoon will send permanently. Button presses cause transmission only on event.