Use a Macbook pro's touch pad as a replacement for a normal touch pad on a Hackintosh to avoid special extensions

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Macbook pro touch pad as a replacement for a normal touch pad on a Hackintosh so you do not need special extensions.

The touchpad uses SPI or USB.
Keep the CY8C24794 as this is the convert from SPI to USB.
You will need to connect TPAD_VBUS_EN on the CY8C24794 (pin 4) to 3.3v as that is the voltage the CY8C24794 works on .

I used a LM1117 to power the CY8C24794 at 3.3v , and the 5v straight from USB to power the touchpad electronics and the boost circuit for the actual touch.

I used a part of a damaged Macbook 2012 MB on the back side you will need the circled part only.

I will reduce the piece as much as possible in the future.

The MB was bought as damaged so just make sure you have the proper parts if you plan to do this.

You can use this as a magic trackpad if you want.

The main downside at this point is that the device is not connected to the SMC and will not show up in Preferences to configure the device as a workaround you can use MagicPrefs.

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acccela wrote 04/30/2020 at 00:00 point

Hi! interested in doing something similar. Disassembled a A1278 mbp hoping it would have easy USB pinouts (as i found guides doing it on the white macbook from the same era.)

It has the same finicky plastic ribbon cable with a billion etches so i figured that's useless to try and list out what's what.

It looks like you've not really removed the pad from the logic board, and wired that up instead?

Any tips? i'll be checking the logic board tomorrow and see if i can't figure something out. I really need a bluetooth/wifi connected trackpad 'cause the one on Clevo computers are just butts.

Any information you could share with me would be very much appreciated.

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RRPRIME wrote 05/08/2020 at 23:24 point

not really just follow the boardview and the schematic and you will do fine, isolate all components for CY8C24794 cut the board or desolder all components and resolder them. Maybe in the future I will do a proper tutorial.

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Elliot wrote 05/10/2020 at 20:57 point

I would love to see a tutorial.  I'm only sort-of grasping your instructions.  

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