DevKit8500D/A User Manual - DMCS Pages for Students

eturn -1;
}
if((f_led2 = open(LED2, O_RDWR)) < 0){
printf("error in open %s",LED2);
return -1;
}
if((f_led3 = open(LED3, O_RDWR)) < 0){
printf("error in open %s",LED3);
return -1;
}
for(;;){
i++;
dat1 = i&0x1 ? '1':'0';
dat2 = (i&0x2)>>1 ? '1':'0';
dat3 = (i&0x4)>>2 ? '1':'0';
write(f_led1, &dat1, sizeof(dat1));
write(f_led2, &dat2, sizeof(dat2));
write(f_led3, &dat3, sizeof(dat3));
usleep(300000);
}
}
2) To Cross-compile
arm-none-linux-gnueabi-gcc led_acc.c -o led_acc
3) Download and run
Upload to the development board system through TF card, USB flash disk or network, enter the
directory with the led_acc file, input the following commands and press Enter, to run led_acc in the
background.
./led_acc &
79