irq/src/main.cpp

//#include "stddefs.h"
#include <stdint.h>

#include "murax.h"

void print(const char*str){
	while(*str){
//		uart_write(UART,*str);
		str++;
	}
}
void println(const char*str){
	print(str);
//	uart_write(UART,'\n');
}

void delay(uint32_t loops){
	for(int i=0;i<loops;i++){
		int tmp = GPIO_A->OUTPUT;
	}
}

volatile int mati = 0;


// Modern C++ aproach 
// ---
class TimeR {

public:
    static inline  uint32_t readValue() {
        return ptr->VALUE;
    }

private:
        static const Timer_Reg* ptr ;
};

const Timer_Reg* TimeR::ptr = reinterpret_cast<const Timer_Reg*>(0xF0020040);
// ---

int main() {

    GPIO_A->OUTPUT_ENABLE = 0x0000000F;
	GPIO_A->OUTPUT = 0x00000001;
    println("hello world arty a7 v1");

    const int nleds = 4;
	const int nloops = 10;

        interruptCtrl_init(TIMER_INTERRUPT);
        prescaler_init(TIMER_PRESCALER);
        timer_init(TIMER_A);

        TIMER_PRESCALER->LIMIT = 0x10;

        TIMER_A->LIMIT = 0x10000-1;
        TIMER_A->CLEARS_TICKS = 0x10002;

        TIMER_INTERRUPT->PENDINGS = 0xF;
        TIMER_INTERRUPT->MASKS = 0x1;

    while(1){
    
    ++mati;
    }
}

extern "C" void irqCallback(){

static volatile int count = 0;
    ++count;
   TIMER_INTERRUPT->PENDINGS = 1;

}