cleaned up project:
-moved all includes into "include" directory -extracted "wait...()"-routines into separate files
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@@ -31,6 +31,7 @@
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#include "sysinit.h"
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#include "bas_printf.h"
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#include "bas_types.h"
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#include <wait.h>
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extern void xprintf_before_copy(const char *fmt, ...);
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#define xprintf xprintf_before_copy
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@@ -44,32 +45,7 @@ extern volatile long _VRAM; /* start address of video ram from linker script */
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static const int MAJOR_VERSION = 0;
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static const int MINOR_VERSION = 1;
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/*
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* wait for the specified number of us on slice timer 0. Replaces the original routines that had
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* the number of useconds to wait for hardcoded in their name.
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*/
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inline void wait(uint32_t us)
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{
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uint32_t target = MCF_SLT_SCNT(0) - (us * 132);
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while (MCF_SLT_SCNT(0) > target);
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}
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/*
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* the same as above, with a checker function which gets called while
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* busy waiting and allows for an early return if it returns true
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*/
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inline bool waitfor(uint32_t us, int (*condition)(void))
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{
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uint32_t target = MCF_SLT_SCNT(0) - (us * 132);
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do
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{
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if ((*condition)())
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return TRUE;
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} while (MCF_SLT_SCNT(0) > target);
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return FALSE;
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}
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/*
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* init SLICE TIMER 0
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* all = 32.538 sec = 30.736mHz
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