int main(int argc, char **argv) {
int ch;
int i;
int nchan;
__u8 bIReg, bOReg;
__u8 in_options, out_options;
float temperature;
float volts;
float temperature_array[8];
float value_1, value_2;
int flag;
char type[10];
HIDInterface* hid = 0x0; // Composite device with 1 interface.
hid_return ret;
int interface;
char serial[9];
// Debug information. Delete when not needed
// hid_set_debug(HID_DEBUG_ALL);
// hid_set_debug_stream(stderr);
// hid_set_usb_debug(2);
ret = hid_init();
if (ret != HID_RET_SUCCESS) {
fprintf(stderr, "hid_init failed with return code %d\n", ret);
return -1;
}
if ((interface = PMD_Find_Interface(&hid, 0, USBTC_AI_PID)) < 0) {
fprintf(stderr, "USB TC-AI not found.\n");
exit(1);
} else {
printf("USB TC-AI Device is found! Interface = %d\n", interface);
}
/* config mask 0x01 means all inputs */
usbDConfigPort_USBTC_AI(hid, DIO_DIR_OUT);
usbDOut_USBTC_AI(hid, 0x0);
while(1) {
printf("\nUSB TC-AI Testing\n");
printf("----------------\n");
printf("Hit 'a' to get alarm status\n");
printf("Hit 'b' to blink LED\n");
printf("Hit 'c' to calibrate\n");
printf("Hit 'd' to test DIO\n");
printf("Hit 'e' to exit\n");
printf("Hit 'f' for burnout status\n");
printf("Hit 'g' to get serial number\n");
printf("Hit 'h' to run the counter\n");
printf("Hit 'r' to reset\n");
printf("Hit 'p' read the CJC\n");
printf("Hit 's' to get status\n");
printf("Hit 't' to measure temperature\n");
printf("Hit 'x' to measure temperature (Thermocouple) multiple channels\n");
printf("Hit 'v' to measure voltage (channels 4-7)\n");
while((ch = getchar()) == '\0' ||
ch == '\n');
switch(tolower(ch)) {
case 'a':
for ( i = 0; i < 8; i++ ) {
value_1 = 1.0 + i;
value_2 = 0.0;
in_options = 0x40 | i;
out_options = 0x0; // disable alarm
usleep(10000);
usbConfigAlarm_USBTC_AI(hid, i, in_options, out_options, value_1, value_2);
usleep(10000);
usbGetAlarmConfig_USBTC_AI(hid, i, &in_options, &out_options, &value_1, &value_2);
printf("Alarm %d: input options = %#x output options = %#x value_1 = %f value_2 = %f\n",
i, in_options, out_options, value_1, value_2);
}
printf("\n");
break;
case 'b': /* test to see if led blinks */
usbBlink_USBTC_AI(hid);
break;
case 'c': /* calibration */
usbCalibrate_USBTC_AI(hid, 0);
usbCalibrate_USBTC_AI(hid, 1);
break;
case 'f': /* Get status of thermocouple burnout detection */
printf("Burnout status = %#x\n", usbGetBurnoutStatus_USBTC_AI(hid, 0xf));
break;
case 'g':
strncpy(serial, PMD_GetSerialNumber(hid), 9);
printf("Serial Number = %s\n", serial);
break;
case 'p': /* read the CJC */
usbAin_USBTC_AI(hid, CJC0, 0, &temperature);
printf("CJC 0 = %.2f degress Celsius or %.2f degrees Fahrenheit.\n", temperature,
celsius2fahr(temperature));
break;
case 'd': /* test to see if led blinks */
printf("conect DIO0 - DIO4\n");
printf("conect DIO1 - DIO5\n");
printf("conect DIO2 - DIO6\n");
printf("conect DIO3 - DIO7\n");
usbDConfigBit_USBTC_AI(hid, 0, DIO_DIR_OUT);
usbDConfigBit_USBTC_AI(hid, 1, DIO_DIR_OUT);
usbDConfigBit_USBTC_AI(hid, 2, DIO_DIR_OUT);
usbDConfigBit_USBTC_AI(hid, 3, DIO_DIR_OUT);
usbDConfigBit_USBTC_AI(hid, 4, DIO_DIR_IN);
usbDConfigBit_USBTC_AI(hid, 5, DIO_DIR_IN);
usbDConfigBit_USBTC_AI(hid, 6, DIO_DIR_IN);
usbDConfigBit_USBTC_AI(hid, 7, DIO_DIR_IN);
do {
printf("Enter value [0-f]: ");
scanf("%hhx", &bIReg);
bIReg &= 0xf;
usbDOut_USBTC_AI(hid, bIReg);
usbDIn_USBTC_AI(hid, &bOReg);
printf("value = %#hhx\n", bOReg);
} while (toContinue());
break;
case 'h':
printf("connect CTR to DIO0.\n");
usbDConfigBit_USBTC_AI(hid, 0, DIO_DIR_OUT);
usbInitCounter_USBTC_AI(hid);
sleep(1);
flag = fcntl(fileno(stdin), F_GETFL);
fcntl(0, F_SETFL, flag | O_NONBLOCK);
do {
usbDOutBit_USBTC_AI(hid, 0, 1);
usleep(200000);
usbDOutBit_USBTC_AI(hid, 0, 0);
printf("Counter = %d\n",usbReadCounter_USBTC_AI(hid));
} while (!isalpha(getchar()));
fcntl(fileno(stdin), F_SETFL, flag);
break;
case 's':
printf("Status = %#x\n", usbGetStatus_USBTC_AI(hid));
break;
case 'r':
usbReset_USBTC_AI(hid);
return 0;
break;
case 'e':
ret = hid_close(hid);
if (ret != HID_RET_SUCCESS) {
fprintf(stderr, "hid_close failed with return code %d\n", ret);
return 1;
}
hid_delete_HIDInterface(&hid);
ret = hid_cleanup();
if (ret != HID_RET_SUCCESS) {
fprintf(stderr, "hid_cleanup failed with return code %d\n", ret);
return 1;
}
return 0;
break;
case 't':
printf("Select Channel [0-3]: ");
scanf("%d", &i);
if ( i > 3 ) {
printf("Channel must be between 0-3.\n");
i = 0;
}
printf("Connect thermocouple to channel %d\n", i);
printf(" Select Thermocouple Type [JKSRBETN]: ");
scanf("%s", type);
switch(type[0]) {
case 'J':
bIReg = TYPE_J;
printf("Type J Thermocouple Selected: \n");
break;
case 'K':
bIReg = TYPE_K;
printf("Type K Thermocouple Selected: \n");
break;
case 'T':
bIReg = TYPE_T;
printf("Type T Thermocouple Selected: \n");
break;
case 'E':
bIReg = TYPE_E;
printf("Type E Thermocouple Selected: \n");
break;
case 'R':
bIReg = TYPE_R;
printf("Type R Thermocouple Selected: \n");
break;
case 'S':
bIReg = TYPE_S;
printf("Type S Thermocouple Selected: \n");
break;
case 'B':
bIReg = TYPE_B;
printf("Type B Thermocouple Selected: \n");
break;
case 'N':
bIReg = TYPE_N;
printf("Type N Thermocouple Selected: \n");
break;
default:
printf("Unknown or unsupported thermocopule type.\n");
break;
}
usbSetItem_USBTC_AI(hid, i, i%2+CH_0_TC, bIReg);
flag = fcntl(fileno(stdin), F_GETFL);
fcntl(0, F_SETFL, flag | O_NONBLOCK);
do {
usbAin_USBTC_AI(hid, i, 0, &temperature);
printf("Channel: %d %.2f degress Celsius or %.2f degrees Fahrenheit.\n",
i, temperature, celsius2fahr(temperature));
sleep(1);
} while (!isalpha(getchar()));
fcntl(fileno(stdin), F_SETFL, flag);
break;
case 'x':
printf("Enter number of Channels (1-4): ");
scanf("%d", &nchan);
if (nchan > 4) nchan = 4;
for ( i = 0; i < nchan; i++ ) {
printf("Connect thermocouple to channel %d\n", i);
printf(" Select Thermocouple Type [JKSRBETN]: ");
scanf("%s", type);
switch(type[0]) {
case 'J':
bIReg = TYPE_J;
printf("Type J Thermocouple Selected: \n");
break;
case 'K':
bIReg = TYPE_K;
printf("Type K Thermocouple Selected: \n");
break;
case 'T':
bIReg = TYPE_T;
printf("Type T Thermocouple Selected: \n");
break;
case 'E':
bIReg = TYPE_E;
printf("Type E Thermocouple Selected: \n");
break;
case 'R':
bIReg = TYPE_R;
printf("Type R Thermocouple Selected: \n");
break;
case 'S':
bIReg = TYPE_S;
printf("Type S Thermocouple Selected: \n");
break;
case 'B':
bIReg = TYPE_B;
printf("Type B Thermocouple Selected: \n");
break;
case 'N':
bIReg = TYPE_N;
printf("Type N Thermocouple Selected: \n");
break;
default:
printf("Unknown or unsupported thermocopule type.\n");
break;
}
usbSetItem_USBTC_AI(hid, i/2, i%2+CH_0_TC, bIReg);
}
flag = fcntl(fileno(stdin), F_GETFL);
fcntl(0, F_SETFL, flag | O_NONBLOCK);
do {
usbAinScan_USBTC_AI(hid, CH0, nchan-1, 0, temperature_array);
for ( i = 0; i < nchan; i++ ) {
printf("Channel %d: %.2f degress Celsius or %.2f degrees Fahrenheit.\n",
i, temperature_array[i], celsius2fahr(temperature_array[i]));
}
printf("\n");
sleep(1);
} while (!isalpha(getchar()));
fcntl(fileno(stdin), F_SETFL, flag);
break;
case 'v':
printf("Select Channel [4-7]: ");
scanf("%d", &i);
if ( i < 4 || i > 7 ) {
printf("Channel must be between 4-7 inclusive. Setting to 4\n");
i = 4;
}
//usbSetItem_USBTC_AI(hid, i/2, SENSOR_TYPE, VOLTAGE);
usbSetItem_USBTC_AI(hid, i/2, i%2+CH_0_VOLT_CONN, DIFFERENTIAL);
usbSetItem_USBTC_AI(hid, i/2, i%2+CH_0_GAIN, GAIN_4X); // +/- 10V.
flag = fcntl(fileno(stdin), F_GETFL);
fcntl(0, F_SETFL, flag | O_NONBLOCK);
do {
usbAin_USBTC_AI(hid, i, 0, &volts);
printf("Channel: %d %.2f Volts.\n", i, volts);
sleep(1);
} while (!isalpha(getchar()));
fcntl(fileno(stdin), F_SETFL, flag);
break;
default:
break;
}
}
}
int main(int argc, char **argv)
{
int ch;
uint8_t bIReg, bOReg;
float temperature;
float temperature_array[8];
int nchan;
int flag;
char type;
int i;
float R0, A, B, C; // RTD: Callendar-Van Dusen coefficients
float A0, A1, A2; // Thermistor: Steinhart-Hart coefficients
float Offset, Scale; // Semiconductor
float value;
hid_device *hid = 0x0; // Composite device with 1 interface.
int ret;
wchar_t serial[64];
wchar_t wstr[MAX_STR];
ret = hid_init();
if (ret < 0) {
fprintf(stderr, "hid_init failed with return code %d\n", ret);
return -1;
}
if ((hid = hid_open(MCC_VID, USB_TEMP_AI_PID, NULL)) > 0) {
printf("USB TEMP-AI is found.\n");
} else {
fprintf(stderr, "USB-TEMP-AI is not found.\n");
}
/* config mask 0x01 means all inputs */
usbDConfigPort_USBTC_AI(hid, DIO_DIR_OUT);
usbDOut_USBTC_AI(hid, 0x0);
while(1) {
printf("\nUSB-TEMP-AI Testing\n");
printf("----------------\n");
printf("Hit 'b' to blink LED\n");
printf("Hit 'c' to calibrate\n");
printf("Hit 'd' to test DIO\n");
printf("Hit 'e' to exit\n");
printf("Hit 'f' for burnout status\n");
printf("Hit 'g' to get serial number\n");
printf("Hit 'i' for information\n");
printf("Hit 'R' to reset\n");
printf("Hit 'r' to measure temperature (RTD)\n");
printf("Hit 'p' read the CJC\n");
printf("Hit 's' to get status\n");
printf("Hit 'S' to measure temperature (Semiconductor)\n");
printf("Hit 't' to measure temperature (Thermocouple)\n");
printf("Hit 'T' to measure temperature (Thermistor)\n");
printf("Hit 'x' to measure temperature (Thermocouple) multiple channels\n");
while((ch = getchar()) == '\0' || ch == '\n');
switch(ch) {
case 'b': /* test to see if led blinks */
usbBlink_USBTC_AI(hid);
break;
case 'c': /* calibration */
usbCalibrate_USBTC_AI(hid, 0);
usbCalibrate_USBTC_AI(hid, 1);
break;
case 'f': /* Get status of thermocouple burnout detection */
printf("Burnout status = %#x\n", usbGetBurnoutStatus_USBTC_AI(hid, 0xf));
break;
case 'g':
hid_get_serial_number_string(hid, serial, 64);
printf("Serial Number = %ls\n", serial);
break;
case 'i':
// Read the Manufacuter String
ret = hid_get_manufacturer_string(hid, wstr, MAX_STR);
printf("Manufacturer String: %ls\n", wstr);
// Read the Product String
ret = hid_get_product_string(hid, wstr, MAX_STR);
printf("Product String: %ls\n", wstr);
// Read the Serial Number String
ret = hid_get_serial_number_string(hid, wstr, MAX_STR);
printf("Serial Number String: %ls\n", wstr);
break;
case 'p': /* read the CJC */
usbAin_USBTC_AI(hid, CJC0, 0, &temperature);
printf("CJC 0 = %.2f degress Celsius or %.2f degrees Fahrenheit.\n", temperature,
celsius2fahr(temperature));
break;
case 'd': /* test to see if led blinks */
printf("conect DIO0 - DIO4\n");
printf("conect DIO1 - DIO5\n");
printf("conect DIO2 - DIO6\n");
printf("conect DIO3 - DIO7\n");
usbDConfigBit_USBTC_AI(hid, 0, DIO_DIR_OUT);
usbDConfigBit_USBTC_AI(hid, 1, DIO_DIR_OUT);
usbDConfigBit_USBTC_AI(hid, 2, DIO_DIR_OUT);
usbDConfigBit_USBTC_AI(hid, 3, DIO_DIR_OUT);
usbDConfigBit_USBTC_AI(hid, 4, DIO_DIR_IN);
usbDConfigBit_USBTC_AI(hid, 5, DIO_DIR_IN);
usbDConfigBit_USBTC_AI(hid, 6, DIO_DIR_IN);
usbDConfigBit_USBTC_AI(hid, 7, DIO_DIR_IN);
do {
printf("Enter value [0-f]: ");
scanf("%hhx", &bIReg);
bIReg &= 0xf;
usbDOut_USBTC_AI(hid, bIReg);
usbDIn_USBTC_AI(hid, &bOReg);
printf("value = %#x\n", bOReg);
} while (toContinue());
break;
case 's':
printf("Status = %#x\n", usbGetStatus_USBTC_AI(hid));
break;
case 'S':
printf("Sampling Semiconductor TMP36\n");
printf("Enter channel number [0-7]: ");
scanf("%d", &ch);
usbSetItem_USBTEMP_AI(hid, ch/2, SENSOR_TYPE, SEMICONDUCTOR);
printf(" 1. Single ended.\n");
printf(" 2. Differential.\n");
printf("Enter connector type [1-4]: \n");
scanf("%d", &i);
switch (i) {
case 1: usbSetItem_USBTEMP_AI(hid, ch/2, CONNECTION_TYPE, SINGLE_ENDED);break;
case 2: usbSetItem_USBTEMP_AI(hid, ch/2, CONNECTION_TYPE, DIFFERENTIAL); break;
default: printf("Unknown type\n"); break;
}
printf("Enter Offset: ");
scanf("%f", &Offset);
printf("Enter Scale: ");
scanf("%f", &Scale);
usbSetItem_USBTEMP_AI(hid, ch/2, EXCITATION, EXCITATION_OFF);
usbSetItem_USBTEMP_AI(hid, ch/2, CH_0_GAIN + ch%2, 0x1); // Set for Semiconductor
usbSetItem_USBTEMP_AI(hid, ch/2, CH_0_COEF_0 + ch%2, Offset); // Offset
usbGetItem_USBTC_AI(hid, ch/2, CH_0_COEF_0 + ch%2, &value);
printf("Offset = %f ", value);
usbSetItem_USBTEMP_AI(hid, ch/2, CH_0_COEF_1 + ch%2, Scale); // Scale
usbGetItem_USBTC_AI(hid, ch/2, CH_0_COEF_1 + ch%2, &value);
printf("Scale = %f ", value);
flag = fcntl(fileno(stdin), F_GETFL);
fcntl(fileno(stdin), F_SETFL, flag | O_NONBLOCK);
do {
usbAin_USBTC_AI(hid, ch, 0, &temperature);
printf("Channel: %d %.2f degress Celsius or %.2f degrees Fahrenheit.\n",
ch, temperature, celsius2fahr(temperature));
sleep(1);
} while (!isalpha(getchar()));
fcntl(fileno(stdin), F_SETFL, flag);
break;
case 'r':
printf("Sampling RTD\n");
printf("Enter channel number [0-7]: ");
scanf("%d", &ch);
usbSetItem_USBTEMP_AI(hid, ch/2, SENSOR_TYPE, RTD);
printf(" 1. 2-wire with 1 sensor.\n");
printf(" 2. 2-wire with 2 sensors.\n");
printf(" 3. 3-wire. \n");
printf(" 4. 4-wire.\n");
printf("Enter connector type [1-4]: \n");
scanf("%d", &i);
switch (i) {
case 1: usbSetItem_USBTEMP_AI(hid, ch/2, CONNECTION_TYPE, TWO_WIRE_ONE_SENSOR);break;
case 2: usbSetItem_USBTEMP_AI(hid, ch/2, CONNECTION_TYPE, TWO_WIRE_TWO_SENSOR); break;
case 3: usbSetItem_USBTEMP_AI(hid, ch/2, CONNECTION_TYPE, THREE_WIRE);
printf("Connection-type = 3 wire.\n");
break;
case 4: usbSetItem_USBTEMP_AI(hid, ch/2, CONNECTION_TYPE, FOUR_WIRE);
printf("Connection-type = 4 wire.\n");
break;
}
R0 = 100.;
A = .003908;
B = -5.8019E-7;
C = -4.2735E-12;
usbSetItem_USBTEMP_AI(hid, ch/2, EXCITATION, MU_A_210);
usbSetItem_USBTEMP_AI(hid, ch/2, CH_0_GAIN + ch%2, 0x2); // Set 0 - 0.5V for RTD
usbSetItem_USBTEMP_AI(hid, ch/2, CH_0_COEF_0 + ch%2, R0); // R0 value
usbGetItem_USBTC_AI(hid, ch/2, CH_0_COEF_0 + ch%2, &value);
printf("R0 = %f ", value);
usbSetItem_USBTEMP_AI(hid, ch/2, CH_0_COEF_1 + ch%2, A); // Callendar-Van Dusen Coefficient A
usbGetItem_USBTC_AI(hid, ch/2, CH_0_COEF_1 + ch%2, &value);
printf("A = %e ", value);
usbSetItem_USBTEMP_AI(hid, ch/2, CH_0_COEF_2 + ch%2, B); // Callendar-Van Dusen Coefficient B
usbGetItem_USBTC_AI(hid, ch/2, CH_0_COEF_2 + ch%2, &value);
printf("B = %e ", value);
usbSetItem_USBTEMP_AI(hid, ch/2, CH_0_COEF_3 + ch%2, C); // Callendar-Van Dusen Coefficient C
usbGetItem_USBTC_AI(hid, ch/2, CH_0_COEF_3 + ch%2, &value);
printf("C = %e\n", value);
flag = fcntl(fileno(stdin), F_GETFL);
fcntl(fileno(stdin), F_SETFL, flag | O_NONBLOCK);
do {
usbAin_USBTC_AI(hid, ch, 0, &temperature);
printf("Channel: %d %.2f degress Celsius or %.2f degrees Fahrenheit.\n",
ch, temperature, celsius2fahr(temperature));
sleep(1);
} while (!isalpha(getchar()));
fcntl(fileno(stdin), F_SETFL, flag);
break;
case 'R':
usbReset_USBTC_AI(hid);
return 0;
break;
case 'e':
hid_close(hid);
hid_exit();
return 0;
break;
case 't':
printf("Select Channel [0-7]: ");
scanf("%d", &i);
usbSetItem_USBTEMP_AI(hid, i/2, SENSOR_TYPE, THERMOCOUPLE);
usbSetItem_USBTEMP_AI(hid, i/2, EXCITATION, EXCITATION_OFF);
printf("Connect thermocouple to channel %d\n", i);
printf(" Select Thermocouple Type [JKSRBETN]: ");
scanf("%s", &type);
switch(type) {
case 'J':
bIReg = TYPE_J;
printf("Type J Thermocouple Selected: \n");
break;
case 'K':
bIReg = TYPE_K;
printf("Type K Thermocouple Selected: \n");
break;
case 'T':
bIReg = TYPE_T;
printf("Type T Thermocouple Selected: \n");
break;
case 'E':
bIReg = TYPE_E;
printf("Type E Thermocouple Selected: \n");
break;
case 'R':
bIReg = TYPE_R;
printf("Type R Thermocouple Selected: \n");
break;
case 'S':
bIReg = TYPE_S;
printf("Type S Thermocouple Selected: \n");
break;
case 'B':
bIReg = TYPE_B;
printf("Type B Thermocouple Selected: \n");
break;
case 'N':
bIReg = TYPE_N;
printf("Type N Thermocouple Selected: \n");
break;
default:
printf("Unknown or unsupported thermocopule type.\n");
break;
}
usbSetItem_USBTEMP_AI(hid, i/2, i%2+CH_0_TC, bIReg);
usbCalibrate_USBTC_AI(hid, 0);
usbCalibrate_USBTC_AI(hid, 1);
flag = fcntl(fileno(stdin), F_GETFL);
fcntl(0, F_SETFL, flag | O_NONBLOCK);
do {
usbAin_USBTC_AI(hid, i, 0, &temperature);
printf("Channel: %d %.2f degress Celsius or %.2f degrees Fahrenheit.\n",
i, temperature, celsius2fahr(temperature));
sleep(1);
} while (!isalpha(getchar()));
fcntl(fileno(stdin), F_SETFL, flag);
break;
case 'T':
printf("Sampling Thermistor\n");
printf("Enter channel number [0-7]: ");
scanf("%d", &ch);
usbSetItem_USBTEMP_AI(hid, ch/2, SENSOR_TYPE, THERMISTOR);
printf(" 1. 2-wire with 1 sensor.\n");
printf(" 2. 2-wire with 2 sensors.\n");
printf(" 3. 3-wire.\n");
printf(" 4. 4-wire.\n");
printf("Enter connector type [1-4]: \n");
scanf("%d", &i);
switch (i) {
case 1: usbSetItem_USBTEMP_AI(hid, ch/2, CONNECTION_TYPE, TWO_WIRE_ONE_SENSOR);break;
case 2: usbSetItem_USBTEMP_AI(hid, ch/2, CONNECTION_TYPE, TWO_WIRE_TWO_SENSOR); break;
case 3: usbSetItem_USBTEMP_AI(hid, ch/2, CONNECTION_TYPE, THREE_WIRE);
printf("Connection-type = 3 wire.\n");
break;
case 4: usbSetItem_USBTEMP_AI(hid, ch/2, CONNECTION_TYPE, FOUR_WIRE);
printf("Connection-type = 4 wire.\n");
break;
}
printf("Enter Steinhart-Hart coefficient A0: ");
scanf("%f", &A0);
printf("Enter Steinhart-Hart coefficient A1: ");
scanf("%f", &A1);
printf("Enter Steinhart-Hart coefficient A2: ");
scanf("%f", &A2);
usbSetItem_USBTEMP_AI(hid, ch/2, EXCITATION, MU_A_10);
usbSetItem_USBTEMP_AI(hid, ch/2, CH_0_GAIN + ch%2, 0x0); // Set for Thermnistor
usbSetItem_USBTEMP_AI(hid, ch/2, CH_0_COEF_0 + ch%2, A0); // Steinhart-Hart coefficient A0
usbGetItem_USBTC_AI(hid, ch/2, CH_0_COEF_0 + ch%2, &value);
printf("A0 = %f ", value);
usbSetItem_USBTEMP_AI(hid, ch/2, CH_0_COEF_1 + ch%2, A1); // Steinhart-Hart coefficient A1
usbGetItem_USBTC_AI(hid, ch/2, CH_0_COEF_1 + ch%2, &value);
printf("A1 = %e ", value);
usbSetItem_USBTEMP_AI(hid, ch/2, CH_0_COEF_2 + ch%2, A2); // Steinhart-Hart coefficient A2
usbGetItem_USBTC_AI(hid, ch/2, CH_0_COEF_2 + ch%2, &value);
printf("A2 = %e ", value);
flag = fcntl(fileno(stdin), F_GETFL);
fcntl(fileno(stdin), F_SETFL, flag | O_NONBLOCK);
do {
usbAin_USBTC_AI(hid, ch, 0, &temperature);
printf("Channel: %d %.2f degress Celsius or %.2f degrees Fahrenheit.\n",
ch, temperature, celsius2fahr(temperature));
sleep(1);
} while (!isalpha(getchar()));
fcntl(fileno(stdin), F_SETFL, flag);
break;
case 'x':
printf("Enter number of Channels (1-8): ");
scanf("%d", &nchan);
for ( i = 0; i < nchan; i++ ) {
usbSetItem_USBTEMP_AI(hid, i/2, SENSOR_TYPE, THERMOCOUPLE);
usbSetItem_USBTEMP_AI(hid, i/2, EXCITATION, EXCITATION_OFF);
printf("Connect thermocouple to channel %d\n", i);
printf("Select Thermocouple Type [JKSRBETN]: ");
scanf("%s", &type);
switch(type) {
case 'J':
bIReg = TYPE_J;
printf("Type J Thermocouple Selected: \n");
break;
case 'K':
bIReg = TYPE_K;
printf("Type K Thermocouple Selected: \n");
break;
case 'T':
bIReg = TYPE_T;
printf("Type T Thermocouple Selected: \n");
break;
case 'E':
bIReg = TYPE_E;
printf("Type E Thermocouple Selected: \n");
break;
case 'R':
bIReg = TYPE_R;
printf("Type R Thermocouple Selected: \n");
break;
case 'S':
bIReg = TYPE_S;
printf("Type S Thermocouple Selected: \n");
break;
case 'B':
bIReg = TYPE_B;
printf("Type B Thermocouple Selected: \n");
break;
case 'N':
bIReg = TYPE_N;
printf("Type N Thermocouple Selected: \n");
break;
default:
printf("Unknown or unsupported thermocopule type.\n");
break;
}
usbSetItem_USBTEMP_AI(hid, i/2, i%2+CH_0_TC, bIReg);
}
flag = fcntl(fileno(stdin), F_GETFL);
fcntl(0, F_SETFL, flag | O_NONBLOCK);
do {
usbAinScan_USBTC_AI(hid, CH0, nchan-1, 0, temperature_array);
for ( i = 0; i < nchan; i++ ) {
printf("Channel %d: %.2f degress Celsius or %.2f degrees Fahrenheit.\n",
i, temperature_array[i], celsius2fahr(temperature_array[i]));
}
printf("\n");
sleep(1);
} while (!isalpha(getchar()));
fcntl(fileno(stdin), F_SETFL, flag);
break;
default:
break;
}
}
}