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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include "hwlib.h"
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#include "socal/socal.h"
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#include "socal/hps.h"
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#include "socal/alt_gpio.h"
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#include "hps_0.h"
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#include <stdlib.h>
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#include <math.h>
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#include <string.h>
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#define HW_REGS_BASE ( ALT_STM_OFST )
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#define HW_REGS_SPAN ( 0x04000000 )
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#define HW_REGS_MASK ( HW_REGS_SPAN - 1 )
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int main(int argc,char *argv[]) {
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void *virtual_base;
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int fd;
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void *h2p_lw1_led_addr;
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void *h2p_lw4_led_addr;
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unsigned long i;
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// map the address space for the LED registers into user space so we can interact with them.
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// we'll actually map in the entire CSR span of the HPS since we want to access various registers within that span
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//exit(0);
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if( ( fd = open( "/dev/mem", ( O_RDWR | O_SYNC ) ) ) == -1 ) {
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printf( "ERROR: could not open \"/dev/mem\"...\n" );
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return( 1 );
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}
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virtual_base = mmap( NULL, HW_REGS_SPAN, ( PROT_READ | PROT_WRITE ), MAP_SHARED, fd, HW_REGS_BASE );
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if( virtual_base == MAP_FAILED ) {
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printf( "ERROR: mmap() failed...\n" );
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close( fd );
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return( 1 );
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}
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h2p_lw1_led_addr=virtual_base + ( ( unsigned long )( ALT_LWFPGASLVS_OFST + REG32_WRITE_0_BASE ) & ( unsigned long)( HW_REGS_MASK ) );//adresse de base = 0x10
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h2p_lw4_led_addr=virtual_base + ( ( unsigned long )( ALT_LWFPGASLVS_OFST + REG_READ_0_BASE +0x0C ) & ( unsigned long)( HW_REGS_MASK ) );
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unsigned int min = 0;
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unsigned int max = 65535;
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unsigned int ecart = 0;
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while(1){
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unsigned int i;
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/*
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//Incrementation
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for(i=min+ecart; i<max-ecart; i++){
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*(uint32_t *)h2p_lw1_led_addr = i;
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}*/
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//Décrementation
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for(i=max; i>min; i--){
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*(uint32_t *)h2p_lw1_led_addr = i;
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}
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}
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// clean up our memory mapping and exit
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if( munmap( virtual_base, HW_REGS_SPAN ) != 0 ) {
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printf( "ERROR: munmap() failed...\n" );
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close( fd );
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return( 1 );
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}
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close( fd );
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return( 0 );
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}
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