int main(void)
{
uint8_t val, totval;
uint32_t val32=0;
char description[48];
int error = 0;
flink_dev* dev;
flink_subdev* subdev;
flink_subdev* sdPWM;
dev = flink_open();
subdev = flink_get_subdevice_by_unique_id(dev, 3); // info device
error = flink_info_get_description(subdev, description);
sdPWM = flink_get_subdevice_by_unique_id(dev, 2);
error = flink_pwm_get_baseclock(sdPWM,&val32);
error = flink_pwm_set_period(sdPWM,0,1e6); // 50 MHz / 1 MHz = 50 Hz = 20 msec periode
error = flink_pwm_set_hightime(sdPWM,0,100e3); // 50 MHz / 100 kHz = 500 Hz = 2 msec high time
subdev = flink_get_subdevice_by_unique_id(dev, 1); // GPIO device
error = flink_dio_set_direction(subdev, 0x02, 0x01); // LEDR0
error = flink_dio_set_direction(subdev, 0x03, 0x01); // LEDR1
while(1) {
error = flink_dio_get_value(subdev,0x00,&val); // SW0 --> LEDR0
totval = val;
error = flink_dio_set_value(subdev,0x02,val);
error = flink_dio_get_value(subdev,0x01,&val); // SW1 --> LEDR1
totval += val<<1;
error = flink_dio_set_value(subdev,0x03,val);
switch(totval) {
case 0:
error = flink_pwm_set_hightime(sdPWM,0,100e3); // 2.00 msec high time
break;
case 1:
error = flink_pwm_set_hightime(sdPWM,0,83e3); // 1.67 msec high time
break;
case 2:
error = flink_pwm_set_hightime(sdPWM,0,67e3); // 1.34 msec high time
break;
case 3:
error = flink_pwm_set_hightime(sdPWM,0,50e3); // 1.00 msec high time
break;
default:
break;
} // switch
usleep(50000);
} // while(1)
return 0;
} // main
int main(int argc, char* argv[]) {
flink_dev* dev;
flink_subdev* subdev;
char* dev_name = DEFAULT_DEV;
uint8_t subdevice_id = 0;
int error = 0,e;
char str[29];
// Error message if long dashes (en dash) are used
int i;
for (i=0; i < argc; i++) {
if ((argv[i][0] == 226) && (argv[i][1] == 128) && (argv[i][2] == 147)) {
fprintf(stderr, "Error: Invalid arguments. En dashes are used.\n");
return -1;
}
}
/* Compute command line arguments */
int c;
while((c = getopt(argc, argv, "d:s:c:rwhl")) != -1) {
switch(c) {
case 'd': // device file
dev_name = optarg;
break;
case 's': // subdevice id
subdevice_id = atoi(optarg);
break;
case '?':
if(optopt == 'd' || optopt == 's' || optopt == 'c') fprintf(stderr, "Option -%c requires an argument.\n", optopt);
else if(isprint(optopt)) fprintf (stderr, "Unknown option `-%c'.\n", optopt);
else fprintf(stderr, "Unknown option character `\\x%x'.\n", optopt);
return -1;
default:
abort();
}
}
// Open flink device
dev = flink_open(dev_name);
if(dev == NULL) {
fprintf(stderr, "Failed to open device %s!\n", dev_name);
return -1;
}
// Get a pointer to the choosen subdevice
subdev = flink_get_subdevice_by_id(dev, subdevice_id);
if(subdev == NULL) {
fprintf(stderr, "Illegal subdevice id %d!\n", subdevice_id);
return -1;
}
// Read description
printf("Reading info device: subdevice %u\n", subdevice_id);
error = flink_info_get_description(subdev, str);
if(error != 0) {
printf("Reading description failed!\n");
return -1;
} else {
printf("Description: %s\n", str);
}
// Close flink device
flink_close(dev);
return EXIT_SUCCESS;
}
