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Updated FAQ (markdown)

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tmk 2014-03-03 17:16:27 -08:00
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@ -64,3 +64,10 @@ Without reset circuit you will have inconsistent reuslt due to improper initiali
- http://geekhack.org/index.php?topic=50176.msg1127447#msg1127447
- http://www.mikrocontroller.net/attachment/52583/tpm754.pdf
## Can't read comlumn of matrix beyond 16
Use `1UL<<16` intead of `1<<16` in `read_cols()` in **matrix.h** when your columns goes beyond 16.
In C `1` means one of int type which is 16bit in case of AVR so you can't shift left more than 15. You will get unexpected `0` when you say `1<<16`.
http://deskthority.net/workshop-f7/rebuilding-and-redesigning-a-classic-thinkpad-keyboard-t6181-60.html#p146279