##// END OF EJS Templates
reset cause set to POWER_ON, no other value
reset cause set to POWER_ON, no other value

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main.c
72 lines | 1.6 KiB | text/x-c | CLexer
#include <stdio.h>
#include "grspw.h"
#include "fsw_params.h"
#define DSU_TIME_TAG_COUNTER 0x90000008
//**********
// IRQ LINES
#define IRQ_GRSPW 11
#define IRQ_SPARC_GRSPW 0x1b // see sparcv8.pdf p.76 for interrupt levels
extern void *catch_interrupt(void func(), int irq);
int *lreg = (int *) 0x80000000;
#define ICLEAR 0x20c
#define IMASK 0x240
#define IFORCE 0x208
void enable_irq (int irq)
{
lreg[ICLEAR/4] = (1 << irq); // clear any pending irq
lreg[IMASK/4] |= (1 << irq); // unmaks irq
}
void disable_irq (int irq) { lreg[IMASK/4] &= ~(1 << irq); } // mask irq
void force_irq (int irq) { lreg[IFORCE/4] = (1 << irq); } // force irq
/* NOTE: NEVER put printf() or other stdio routines in interrupt handlers,
they are not re-entrant. This (bad) example is just a demo */
volatile unsigned char processTimecode = 0;
unsigned int counter = 0;
void irqhandler(int irq)
{
processTimecode = 1;
counter ++;
}
int main( void )
{
unsigned int *grspwCtrlReg;
unsigned int k;
volatile unsigned int *reg;
float aux;
printf("hello world!\n");
grspwCtrlReg = (unsigned int*) REGS_ADDR_GRSPW;
grspw_set_ie( 1, grspwCtrlReg );
grspw_set_tq( 1, grspwCtrlReg );
grspw_set_tr( 1, grspwCtrlReg );
catch_interrupt(irqhandler, IRQ_GRSPW);
enable_irq( IRQ_GRSPW );
force_irq( IRQ_GRSPW );
reg = (volatile unsigned int *) DSU_TIME_TAG_COUNTER;
while(1)
{
if (processTimecode == 1)
{
printf("timecode counter = %d\n", counter);
processTimecode = 0;
}
}
return 0;
}