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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2009-10-18 17:56:20 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2009-10-18 17:56:20 +0000 |
| commit | cd66f64dc66040e8668404f2e7cac934fde5c827 (patch) | |
| tree | a22ac3dd87e7c7e82d9218e88314ebd841792faa /os/io/platforms | |
| parent | 6dfbaa34d96d3571fc28aba6179268c1df595b2f (diff) | |
| download | ChibiOS-cd66f64dc66040e8668404f2e7cac934fde5c827.tar.gz ChibiOS-cd66f64dc66040e8668404f2e7cac934fde5c827.tar.bz2 ChibiOS-cd66f64dc66040e8668404f2e7cac934fde5c827.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1239 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/io/platforms')
| -rw-r--r-- | os/io/platforms/LPC214x/pal_lld.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/os/io/platforms/LPC214x/pal_lld.h b/os/io/platforms/LPC214x/pal_lld.h index 4547abc61..565b3333a 100644 --- a/os/io/platforms/LPC214x/pal_lld.h +++ b/os/io/platforms/LPC214x/pal_lld.h @@ -183,7 +183,8 @@ typedef FIO * ioportid_t; * accesses.
*
* @param[in] port the port identifier
- * @param[in] mask the group mask
+ * @param[in] mask the group mask, a logical AND is performed on the output
+ * data
* @param[in] offset the group bit offset within the port
* @param[in] bits the bits to be written. Values exceeding the group width
* are masked.
@@ -192,7 +193,7 @@ typedef FIO * ioportid_t; * code.
*/
#define pal_lld_writegroup(port, mask, offset, bits) { \
- (port)->FIO_MASK = (mask) << (offset); \
+ (port)->FIO_MASK = ~((mask) << (offset)); \
(port)->FIO_PIN = (bits) << (offset); \
(port)->FIO_MASK = 0; \
}
|