void measure_irq_speed(void)
{
#undef TESTS
#define TESTS 64
int n;
dword t;
float f;
float test_timePR[TESTS];
float test_timeRP[TESTS];
float timer_time=1193181; // timer freq in Hz
test_irq();
for(n=0; n<TESTS; n++)
{
t=test_irq();
test_timePR[n]=(t&0x0000FFFF);
test_timeRP[n]=(t&0xFFFF0000)>>16;
}
f=0;
for(n=0; n<TESTS; n++) f=f+test_timePR[n];
f=f/TESTS;
irqPR_speed=(f/2)/timer_time;
f=0;
for(n=0; n<TESTS; n++) f=f+test_timeRP[n];
f=f/TESTS;
irqRP_speed=(f/2)/timer_time;
}
/**
* @brief GPIO Interrupt handler function
* @internal
*
* Invoked whenever an activated gpio interrupt is triggered by a rising
* or falling edge.
*/
void __attribute__((__no_instrument_function__)) GPIO_IRQHandler(void)
{
if (IO_INT_STAT & BIT0) { /* interrupt(s) on PORT0 pending */
unsigned long int_stat_f = IO0_INT_STAT_F; /* save content */
unsigned long int_stat_r = IO0_INT_STAT_R; /* save content */
IO0_INT_CLR = int_stat_f; /* clear flags of fallen pins */
IO0_INT_CLR = int_stat_r; /* clear flags of risen pins */
test_irq(0, int_stat_f, int_stat_r, gpioint0);
}
if (IO_INT_STAT & BIT2) { /* interrupt(s) on PORT2 pending */
unsigned long int_stat_f = IO2_INT_STAT_F; /* save content */
unsigned long int_stat_r = IO2_INT_STAT_R; /* save content */
IO2_INT_CLR = int_stat_f; /* clear flags of fallen pins */
IO2_INT_CLR = int_stat_r; /* clear flags of risen pins */
test_irq(2, int_stat_f, int_stat_r, gpioint2);
}
VICVectAddr = 0; /* Acknowledge Interrupt */
}
void GPIO_IRQHandler(void)
{
if (IO_INT_STAT & BIT0) { /* interrupt(s) on PORT0 pending */
unsigned long int_stat_f = IO0_INT_STAT_F; /* save content */
unsigned long int_stat_r = IO0_INT_STAT_R; /* save content */
IO0_INT_CLR = int_stat_f; /* clear flags of fallen pins */
IO0_INT_CLR = int_stat_r; /* clear flags of risen pins */
test_irq(0, int_stat_f, int_stat_r);
}
if (IO_INT_STAT & BIT2) { /* interrupt(s) on PORT2 pending */
unsigned long int_stat_f = IO2_INT_STAT_F; /* save content */
unsigned long int_stat_r = IO2_INT_STAT_R; /* save content */
IO2_INT_CLR = int_stat_f; /* clear flags of fallen pins */
IO2_INT_CLR = int_stat_r; /* clear flags of risen pins */
test_irq(2, int_stat_f, int_stat_r);
}
VICVectAddr = 0; /* Acknowledge Interrupt */
}
