AFIO_EXTICR[1 to 4] registers were not beeing set correctly. You have to force a 0 on the bits that are 0 for the mutex to work. Thanks Linus Casassa <linus@lin.cl> for the patch!
AFIO_EXTICR[1 to 4] registers were not beeing set correctly. You have to force a 0 on the bits that are 0 for the mutex to work. Thanks Linus Casassa <linus@lin.cl> for the patch!