add void rt_hw_us_delay(rt_uint32_t us) for mini2440

This commit is contained in:
Meco Man committed 2021-02-12 02:37:30 +08:00
1 parent fa8e8ed31f
commit 28e8e6da62
1 file changed
+6
+6
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@@ -125,4 +125,10 @@ void rt_hw_board_init(void)
#endif
}
void rt_hw_us_delay(rt_uint32_t us)
{
}
/*@}*/