Difference between revisions of "Hardware/Testpoints"
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(TP145) |
(more buttons) |
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== Misc/Unk == | == Misc/Unk == | ||
| − | * TP9 - Power Button (active low/pullup, pressed=0.0v, not pressed=3.3v), connected to SMC and RTC | + | * TP9 - Fake Power Button (active low/pullup, pressed=0.0v, not pressed=3.3v), connected to SMC and RTC. Eject button will also pulse this low. |
| + | * TP70 - Power Button (active low/pullup, pressed=0.0v, not pressed=3.3v) | ||
* TP102 - Not EXI0? | * TP102 - Not EXI0? | ||
* TP144 - Reset? Or functions like one when pulled down by a 3.3Kohm resistor. | * TP144 - Reset? Or functions like one when pulled down by a 3.3Kohm resistor. | ||
* TP145 - Connection between RTC and SMC, weirdly sensitive to measurement (power LED reverts to red, but SoC continues running) | * TP145 - Connection between RTC and SMC, weirdly sensitive to measurement (power LED reverts to red, but SoC continues running) | ||
* TP127 - ARM/IOP power rail? | * TP127 - ARM/IOP power rail? | ||
| + | * TP170 - Eject Button (active low/pullup, pressed=0.0v, not pressed=3.3v) | ||
Revision as of 03:17, 21 March 2023
General
The Wii U motherboard exposes several test points, primarily on the bottom of the motherboard (CPU heatsink facing down).
EXI0
- TP101 - CLK
- TP176 - MISO (Device out, Wii U in)
- Test point between TP100 and TP176 - MOSI (Device in, Wii U out)
DEBUG
These pins are set to various 8-bit values to indicate the current stage of boot0.
- TP50 - DEBUG0
- TP51 - DEBUG1
- TP52 - DEBUG2
- TP53 - DEBUG3
- TP55 - DEBUG4
- TP54 - DEBUG5
- TP48 - DEBUG6
- TP49 - DEBUG7
Misc/Unk
- TP9 - Fake Power Button (active low/pullup, pressed=0.0v, not pressed=3.3v), connected to SMC and RTC. Eject button will also pulse this low.
- TP70 - Power Button (active low/pullup, pressed=0.0v, not pressed=3.3v)
- TP102 - Not EXI0?
- TP144 - Reset? Or functions like one when pulled down by a 3.3Kohm resistor.
- TP145 - Connection between RTC and SMC, weirdly sensitive to measurement (power LED reverts to red, but SoC continues running)
- TP127 - ARM/IOP power rail?
- TP170 - Eject Button (active low/pullup, pressed=0.0v, not pressed=3.3v)