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#include "project.h"
static volatile uint32_t delay_ms_count;
uint32_t ticks;
void
delay_us (uint32_t d)
{
d *= 36;
while (d--)
{
__asm__ ("nop");
}
}
void
sys_tick_handler (void)
{
if (delay_ms_count)
delay_ms_count--;
ticks++;
led_tick ();
lcd_refresh_wdt ();
}
void
delay_ms (uint32_t d)
{
delay_ms_count = d;
while (delay_ms_count);
}
void
ticker_init (void)
{
/*Start periodic timer */
systick_set_clocksource (STK_CSR_CLKSOURCE_AHB_DIV8);
/* 48MHz / 8 = > 6Mhz */
systick_set_reload (6000);
/* 6MHz / 6000 => 1kHz */
systick_interrupt_enable ();
systick_counter_enable ();
}
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