darkkirb/qmk_firmware
1
0
Fork 0
forked from mirrors/qmk_firmware
Code Issues Pull requests Projects Releases Packages Wiki Activity

Updated FAQ (markdown)

Browse source
This commit is contained in:
tmk 2014-03-03 17:17:50 -08:00
parent 4464a288a1
commit 700a77a0f3
1 changed files with 2 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
FAQ.md
View file

@ -68,6 +68,7 @@ Without reset circuit you will have inconsistent reuslt due to improper initiali
## Can't read comlumn of matrix beyond 16 ## 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. 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`.
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 zero when you say `1<<16`.
http://deskthority.net/workshop-f7/rebuilding-and-redesigning-a-classic-thinkpad-keyboard-t6181-60.html#p146279 http://deskthority.net/workshop-f7/rebuilding-and-redesigning-a-classic-thinkpad-keyboard-t6181-60.html#p146279