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cc2x3x clock_delay(len) now delays for approx. len usecs

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George Oikonomou 2012-04-03 14:52:54 +01:00
parent 3cb26adeda
commit 57969259ce
2 changed files with 10 additions and 9 deletions
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12
cpu/cc2430/dev/clock.c
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@ -56,17 +56,17 @@ static volatile __data clock_time_t count = 0; /* Uptime in ticks */
static volatile __data clock_time_t seconds = 0; /* Uptime in secs */ static volatile __data clock_time_t seconds = 0; /* Uptime in secs */
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
/** /**
* One delay is about 0.6 us, so this function delays for len * 0.6 us * Each iteration is ~1.0xy usec, so this function delays for roughly len usec
*/ */
void void
clock_delay(unsigned int len) clock_delay(unsigned int len)
{ {
unsigned int i; DISABLE_INTERRUPTS();
for(i = 0; i< len; i++) { while(len--) {
__asm ASM(nop); ASM(nop); ASM(nop);
nop ASM(nop); ASM(nop);
__endasm;
} }
ENABLE_INTERRUPTS();
} }
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
/** /**

7
cpu/cc253x/dev/clock.c
View file

@ -59,15 +59,16 @@ static volatile __data clock_time_t count = 0; /* Uptime in ticks */
static volatile __data clock_time_t seconds = 0; /* Uptime in secs */ static volatile __data clock_time_t seconds = 0; /* Uptime in secs */
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
/** /**
* One delay is about 0.6 us, so this function delays for len * 0.6 us * Each iteration is ~1.0xy usec, so this function delays for roughly len usec
*/ */
void void
clock_delay(unsigned int len) clock_delay(unsigned int len)
{ {
unsigned int i; DISABLE_INTERRUPTS();
for(i = 0; i< len; i++) { while(len--) {
ASM(nop); ASM(nop);
} }
ENABLE_INTERRUPTS();
} }
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
/** /**