diff options
Diffstat (limited to 'os/nil/include/nil.h')
| -rw-r--r-- | os/nil/include/nil.h | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/os/nil/include/nil.h b/os/nil/include/nil.h index 98dd2c04e..c6994dfe1 100644 --- a/os/nil/include/nil.h +++ b/os/nil/include/nil.h @@ -128,7 +128,18 @@ typedef struct nil_thread thread_t; #endif
/**
- * @brief System timer resolution in Hz.
+ * @brief System time counter resolution.
+ * @note Allowed values are 16 or 32 bits.
+ */
+#if !defined(NIL_CFG_ST_RESOLUTION) || defined(__DOXYGEN__)
+#define NIL_CFG_ST_RESOLUTION 32
+#endif
+
+/**
+ * @brief System tick frequency.
+ * @note This value together with the @p NIL_CFG_ST_RESOLUTION
+ * option defines the maximum amount of time allowed for
+ * timeouts.
*/
#if !defined(NIL_CFG_ST_FREQUENCY) || defined(__DOXYGEN__)
#define NIL_CFG_ST_FREQUENCY 100
@@ -191,12 +202,17 @@ typedef struct nil_thread thread_t; "ChibiOS/RT instead"
#endif
+#if (NIL_CFG_ST_RESOLUTION != 16) && (NIL_CFG_ST_RESOLUTION != 32)
+#error "invalid NIL_CFG_ST_RESOLUTION specified, must be 16 or 32"
+#endif
+
#if NIL_CFG_ST_FREQUENCY <= 0
-#error "invalid NIL_CFG_ST_FREQUENCY specified"
+#error "invalid NIL_CFG_ST_FREQUENCY specified, must be greated than zero"
#endif
#if (NIL_CFG_ST_TIMEDELTA < 0) || (NIL_CFG_ST_TIMEDELTA == 1)
-#error "invalid NIL_CFG_ST_TIMEDELTA specified"
+#error "invalid NIL_CFG_ST_TIMEDELTA specified, must " \
+ "be zero or greater than one"
#endif
#if NIL_CFG_ENABLE_ASSERTS
|