delay.c

#include <main-header.h>
#include "led.h"
static volatile uint32_t TimingDelay;
static volatile long systickctr = 0;
static volatile int delay_counter[5];
extern uint32_t acm_byte_received;
void reset_delay_counter(int n) {
  delay_counter[n] = 0;
}
int get_delay_counter(int n) {
  return delay_counter[n];
}
 
void Delay(uint32_t nTime) {
  TimingDelay = nTime;
  //printf("Delay %D\r\n",nTime);
  while (TimingDelay != 0) {
    ;
  }
}
 
 
void TimingDelay_Decrement(void) {
  int i;
 
  for (i = 0; i < 5; i++) {
    delay_counter[i]++;
  }
  if (TimingDelay != 0) {
    TimingDelay--;
  }
  dac_timer();
}
 
long get_systickctr() {
  return systickctr;
}
long systick_diff(long timestamp) {
  long tc = get_systickctr();
 
  if (timestamp > tc) {
    return 0xFFFFFFFF - (timestamp - tc);
  }
  return tc - timestamp;
}
void UserSysTick_Handler() {
  systickctr++;
  if (acm_byte_received != 0) {
    acm_byte_received--;
  }
  TimingDelay_Decrement();
}