varl/qmk_firmware
1
0
Fork 0
forked from forks/qmk_firmware
Code Pull requests Activity

Updated FAQ (markdown)

Browse source
This commit is contained in:
abjr 2015-12-29 17:05:50 -05:00
parent dd5bfb6f3e
commit e6423f50a4
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
FAQ.md
View file

@ -72,8 +72,8 @@ Without reset circuit you will have inconsistent reuslt due to improper initiali
- http://www.mikrocontroller.net/attachment/52583/tpm754.pdf - http://www.mikrocontroller.net/attachment/52583/tpm754.pdf
## Can't read comlumn of matrix beyond 16 ## Can't read column 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` instead 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 zero when you say `1<<16`. You have to use **unsigned long** type with `1UL`. 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`. You have to use **unsigned long** type with `1UL`.