Setting Data Interval
Posted: Wed Jan 27, 2021 12:38 pm
I need to change the data interval, but this code does not change the interval and it is still at the default interval. I need to save the voltage ratio for further calculations. How do I change the interval?
Code: Select all
#include <phidget22.h>
#include <stdio.h>
#include <time.h>
#include <conio.h>
//Declare any event handlers here. These will be called every time the associated event occurs.
static void CCONV onVoltageRatioChange(PhidgetVoltageRatioInputHandle ch, void * ctx, double voltageRatio) {
int channel;
//Getting the channel number to distinguish between Phidgets
Phidget_getChannel((PhidgetHandle)ch, &channel);
//printf("VoltageRatio [%d]: %lf\n", channel, voltageRatio);
}
static void CCONV onAttach(PhidgetHandle ch, void * ctx) {
int channel;
//Getting the channel number to distinguish between Phidgets
Phidget_getChannel(ch, &channel);
printf("Attach [%d]!\n", channel);
}
static void CCONV onDetach(PhidgetHandle ch, void * ctx) {
int channel;
//Getting the channel number to distinguish between Phidgets
Phidget_getChannel(ch, &channel);
printf("Detach [%d]!", channel);
}
int main() {
//Declare your Phidget channels and other variables
PhidgetVoltageRatioInputHandle voltageRatioInput0;
PhidgetVoltageRatioInputHandle voltageRatioInput1;
PhidgetVoltageRatioInputHandle voltageRatioInput2;
PhidgetVoltageRatioInputHandle voltageRatioInput3;
//Create your Phidget channels
PhidgetVoltageRatioInput_create(&voltageRatioInput0);
PhidgetVoltageRatioInput_create(&voltageRatioInput1);
PhidgetVoltageRatioInput_create(&voltageRatioInput2);
PhidgetVoltageRatioInput_create(&voltageRatioInput3);
//Set Data Interval
PhidgetVoltageRatioInput_setDataInterval(voltageRatioInput0, 8);
PhidgetVoltageRatioInput_setDataInterval(voltageRatioInput1, 8);
PhidgetVoltageRatioInput_setDataInterval(voltageRatioInput2, 8);
PhidgetVoltageRatioInput_setDataInterval(voltageRatioInput3, 8);
//Set addressing parameters to specify which channel to open (if any)
Phidget_setChannel((PhidgetHandle)voltageRatioInput0, 0);
Phidget_setChannel((PhidgetHandle)voltageRatioInput1, 1);
Phidget_setChannel((PhidgetHandle)voltageRatioInput2, 2);
Phidget_setChannel((PhidgetHandle)voltageRatioInput3, 3);
//Assign any event handlers you need before calling open so that no events are missed.
PhidgetVoltageRatioInput_setOnVoltageRatioChangeHandler(voltageRatioInput0, onVoltageRatioChange, NULL);
Phidget_setOnAttachHandler((PhidgetHandle)voltageRatioInput0, onAttach, NULL);
Phidget_setOnDetachHandler((PhidgetHandle)voltageRatioInput0, onDetach, NULL);
PhidgetVoltageRatioInput_setOnVoltageRatioChangeHandler(voltageRatioInput1, onVoltageRatioChange, NULL);
Phidget_setOnAttachHandler((PhidgetHandle)voltageRatioInput1, onAttach, NULL);
Phidget_setOnDetachHandler((PhidgetHandle)voltageRatioInput1, onDetach, NULL);
PhidgetVoltageRatioInput_setOnVoltageRatioChangeHandler(voltageRatioInput2, onVoltageRatioChange, NULL);
Phidget_setOnAttachHandler((PhidgetHandle)voltageRatioInput2, onAttach, NULL);
Phidget_setOnDetachHandler((PhidgetHandle)voltageRatioInput2, onDetach, NULL);
PhidgetVoltageRatioInput_setOnVoltageRatioChangeHandler(voltageRatioInput3, onVoltageRatioChange, NULL);
Phidget_setOnAttachHandler((PhidgetHandle)voltageRatioInput3, onAttach, NULL);
Phidget_setOnDetachHandler((PhidgetHandle)voltageRatioInput3, onDetach, NULL);
//Open your Phidgets and wait for attachment
Phidget_openWaitForAttachment((PhidgetHandle)voltageRatioInput0, 5000);
Phidget_openWaitForAttachment((PhidgetHandle)voltageRatioInput1, 5000);
Phidget_openWaitForAttachment((PhidgetHandle)voltageRatioInput2, 5000);
Phidget_openWaitForAttachment((PhidgetHandle)voltageRatioInput3, 5000);
double voltageRatio0;
double voltageRatio1;
double voltageRatio2;
double voltageRatio3;
while(!_kbhit()) {
PhidgetVoltageRatioInput_getVoltageRatio(voltageRatioInput0, &voltageRatio0);
PhidgetVoltageRatioInput_getVoltageRatio(voltageRatioInput1, &voltageRatio1);
PhidgetVoltageRatioInput_getVoltageRatio(voltageRatioInput2, &voltageRatio2);
PhidgetVoltageRatioInput_getVoltageRatio(voltageRatioInput3, &voltageRatio3);}