Fixed bug #522.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/stable_2.6.x@7153 35acf78f-673a-0410-8e92-d51de3d6d3f4
Fixed bug #523.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/stable_2.6.x@7163 35acf78f-673a-0410-8e92-d51de3d6d3f4
doc fix

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/stable_2.6.x@7168 35acf78f-673a-0410-8e92-d51de3d6d3f4
More on bug #523.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/stable_2.6.x@7170 35acf78f-673a-0410-8e92-d51de3d6d3f4
Fixed bug #525.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/stable_2.6.x@7171 35acf78f-673a-0410-8e92-d51de3d6d3f4
More on bug #525.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/stable_2.6.x@7173 35acf78f-673a-0410-8e92-d51de3d6d3f4
Fixed bug #527.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/stable_2.6.x@7189 35acf78f-673a-0410-8e92-d51de3d6d3f4