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minor comments about the delay..

master
John-Mark Gurney 3 years ago
parent
commit
4d5427f949
1 changed files with 9 additions and 0 deletions
  1. +9
    -0
      CCDebugger.c

+ 9
- 0
CCDebugger.c View File

@@ -176,6 +176,7 @@ uint8_t cc_error()
*/
struct timespec tp={0,0};
static int cc_delay_mult=80;
/* delay d * .4 us */
void cc_delay( unsigned int d )
{
volatile unsigned int i = cc_delay_mult*d;
@@ -193,6 +194,10 @@ void cc_setmult(int mult)
/* provas konsideri la rapidecon de la procesoro */
void cc_delay_calibrate( )
{
#if 1
/* The ioctl overhead on FreeBSD far exceeds min timing */
cc_delay_mult = 0;
#else
long time0=micros();
cc_delay(200);
cc_delay(200);
@@ -200,7 +205,11 @@ void cc_delay_calibrate( )
cc_delay(200);
cc_delay(200);
long time1=micros();
/* make 1000 delay units == 400us */
cc_delay_mult=cc_delay_mult*400/(time1-time0);
printf("time0: %ld, time1: %ld, time1-time0: %ld\n", time0, time1, time1 - time0);
printf("dmul: %d\n", cc_delay_mult);
#endif
}

/**


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