VALUE interfacekit_data_rate_set(VALUE self, VALUE index, VALUE rate) {
PhidgetInfo *info = device_info(self);
InterfaceKitInfo *ifkit_info = info->type_info;
// If ratiometric state is not uniform, raise an exception
if (!interfacekit_ratiometric_state_is_uniform(ifkit_info))
interfacekit_raise_ratiometric_not_uniform();
if (TYPE(index) != T_FIXNUM)
rb_raise(rb_eTypeError, MSG_SENSOR_INDEX_MUST_BE_FIXNUM);
if (TYPE(rate) != T_FIXNUM)
rb_raise(rb_eTypeError, MSG_DATA_RATE_VALUE_MUST_BE_FIXNUM);
int index_int = FIX2INT(index);
if ((ifkit_info->analog_input_count == 0) || (index_int > (ifkit_info->analog_input_count-1)))
rb_raise(rb_eTypeError, MSG_SENSOR_INDEX_TOO_HIGH);
int rate_int = FIX2INT(rate);
if ((rate_int > ifkit_info->data_rates_min[index_int]) || (rate_int < ifkit_info->data_rates_max[index_int]))
rb_raise(rb_eTypeError, MSG_DATA_RATE_EXCEEDS_LIMIT);
ensure(CPhidgetInterfaceKit_setDataRate(
(CPhidgetInterfaceKitHandle)info->handle, index_int, rate_int));
ifkit_info->data_rates[index_int] = rate_int;
ifkit_info->sensor_change_triggers[index_int] = 0;
return rate;
}
CPhidgetInterfaceKitHandle InitializeTempSensors(int n_tempsensors, int* sensor_channels, int rate_tempsensors) {
int result;
const char *err;
/* If ifKit is already defined, return. */
if (ifKit != NULL) {
return ifKit;
}
/* Create the InterfaceKit object */
CPhidgetInterfaceKit_create(&ifKit);
/* Set the handlers to be run when the device is plugged in or opened from software, unplugged or closed from software, or generates an error. */
CPhidget_set_OnAttach_Handler((CPhidgetHandle)ifKit, AttachHandler, NULL);
CPhidget_set_OnDetach_Handler((CPhidgetHandle)ifKit, DetachHandler, NULL);
CPhidget_set_OnError_Handler((CPhidgetHandle)ifKit, ErrorHandler, NULL);
/* Open the interfacekit for device connections */
CPhidget_open((CPhidgetHandle)ifKit, -1);
LOG(logINFO) << "Waiting for interface kit to be attached...";
if((result = CPhidget_waitForAttachment((CPhidgetHandle)ifKit, 5000))) {
CPhidget_getErrorDescription(result, &err);
LOG(logERROR) << "Problem waiting for attachment:" << err;
return 0;
}
/* Set the data input rates of the interface kit potentiometers */
for (int i = 0; i < n_tempsensors; i++) {
CPhidgetInterfaceKit_setDataRate(ifKit, sensor_channels[i], rate_tempsensors);
}
return ifKit;
}
