/*
fpga-test.c, need insmod s3c2410-fpga.o first.
author: wb <[email protected]>
date: 2005-6-13 21:05
*/
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <pthread.h>
#include <sys/mman.h>
//FPGA is on bank 4
#define oFPGA_IOP1L 0
#define oFPGA_IOP1H 2
#define oFPGA_IOP2L 4
#define oFPGA_IOP2H 6
#define oFPGA_IOP3L 8
#define oFPGA_IOP3H 0xA
#define oFPGA_LED_CTRL 0xC
#define oFPGA_RESET 0x3E
static void help_menu()
{
printf("\n");
printf("DESCRIPTION\n");
printf(" Fpga test program. Writing the register of the fpga loaded in \n");
printf(" the Bank4, it can control the frequency of leds on the fpga board. \n");
printf("OPTIONS\n");
printf(" -h or --help: this menu\n");
printf("\n");
}
int main(int argc, char **argv)
{
int fd;
unsigned char *iobase;
int cnt=0,tn=0;
char ch;
/*
if(argc >= 2){
if(strncmp(argv[1],"-h")==0 ||strncmp(argv[1],"--help")==0 ){
help_menu();
}
exit(0);
}
*/
fd = open("/dev/fpga",O_RDWR);
if(fd < 0){
printf("####fpga device open fail####\n");
return (-1);
}
iobase = (unsigned char *)mmap(0, 4096,PROT_READ | PROT_WRITE, MAP_SHARED,fd,0);
while(1){
usleep(300000);
if(cnt>=30){
cnt=0;
printf("\n");
fflush(stdout);
}
*(iobase+oFPGA_LED_CTRL)=cnt++;
printf(" 0x%x", *(iobase+oFPGA_LED_CTRL));
fflush(stdout);
}
close(fd);
return 0;
}
