The following is a code for a labjack 7 segment countdown or count up in languag
ID: 3860543 • Letter: T
Question
The following is a code for a labjack 7 segment countdown or count up in language C. Please write write a diagnostic code for it in C
#include<stdio.h>
#include<stdlib.h>
#include<windows.h>
#include<stdbool.h>
#include "LabJackUD.h"
#include "LJUD_DynamicLinking.h"
void ErrorHandler (LJ_ERROR ljError, long lngLineNumber)
{
char err[255];
if (ljError != LJE_NOERROR)
{
ErrorToString(ljError, err);
printf("Error # %ld: %s ", ljError, err);
printf("Source line number = %ld ", lngLineNumber);
if(ljError > LJE_MIN_GROUP_ERROR)
{
getchar();
exit(0); ]
}
}
}
const int numbers[10][1] = {
// 1: segment lit, 0: segment unlit
// a b c d e f g
{64}, //0 1, 1, 1, 1, 1, 1, 0 1000000
{121}, //1 0, 1, 1, 0, 0, 0, 0 1111001
{36}, //2 1, 1, 0, 1, 1, 0, 1 0100100
{48}, //3 1, 1, 1, 1, 0, 0, 1 0110000
{25}, //4 0, 1, 1, 0, 0, 1, 1 0011001
{18}, //5 1, 0, 1, 1, 0, 1, 1 0010010
{2}, //6 1, 0, 1, 1, 1, 1, 1 0000010
{120}, //7 1, 1, 1, 0, 0, 0, 0 1111000
{0}, //8 1, 1, 1, 1, 1, 1, 1 0000000
{24} //9 1, 1, 1, 0, 0, 1, 1 0011000
};
int i=0;
int j=0;
int k=0;
main()
{
LJ_ERROR ljError; // LabJack error code
LJ_HANDLE ljHandle = 0; // ID# assigned to the opened LabJack
LoadLabJackUD(); // Load the LabJack DLL
// Open the first found LabJack U3
ljError = OpenLabJack (LJ_dtU3, LJ_ctUSB, "1", 1, &ljHandle);
ErrorHandler(ljError, __LINE__);
// Set all pin assignments to the factory default condition
ljError = ePut(ljHandle, LJ_ioPIN_CONFIGURATION_RESET, 0, 0, 0);
ErrorHandler(ljError, __LINE__);
{
for (i=0; i<10; i++)
{
//printf("i%d", i);
//ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_BIT, 8, 1, 0);
//ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_PORT, 0, numbers[i][0], 7);
for (j=0; j<10; j++)
{
//ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_BIT, 7, 1, 0);
//ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_PORT, 9, numbers[j][0], 7);
//printf("loop");
for (k=0; k<33; k++)
{
ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_BIT, 8, 0, 0);
ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_BIT, 7, 1, 0);
ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_PORT, 0, numbers[i][0], 7);
Sleep(5);
ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_BIT, 7, 0, 0);
ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_BIT, 8, 1, 0);
ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_PORT, 0, numbers[j][0], 7);
Sleep(5);
}
}
}
return 0;
}
}
Explanation / Answer
#include<stdio.h>
#include<stdlib.h>
#include<windows.h>
#include<stdbool.h>
#include "LabJackUD.h"
#include "LJUD_DynamicLinking.h"
int i=0;
int j=0;
int k=0;
main()
{
LJ_ERROR ljError; // LabJack error code
LJ_HANDLE ljHandle = 0; // ID# assigned to the opened LabJack
LoadLabJackUD(); // Load the LabJack DLL
// Open the first found LabJack U3
ljError = OpenLabJack (LJ_dtU3, LJ_ctUSB, "1", 1, &ljHandle);
ErrorHandler(ljError, __LINE__);
// Set all pin assignments to the factory default condition
ljError = ePut(ljHandle, LJ_ioPIN_CONFIGURATION_RESET, 0, 0, 0);
ErrorHandler(ljError, __LINE__);
{
for (i=0; i<10; i++)
{
//printf("i%d", i);
//ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_BIT, 8, 1, 0);
//ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_PORT, 0, numbers[i][0], 7);
for (j=0; j<10; j++)
{
//ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_BIT, 7, 1, 0);
//ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_PORT, 9, numbers[j][0], 7);
//printf("loop");
for (k=0; k<33; k++)
{
ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_BIT, 8, 0, 0);
ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_BIT, 7, 1, 0);
ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_PORT, 0, numbers[i][0], 7);
Sleep(5);
ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_BIT, 7, 0, 0);
ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_BIT, 8, 1, 0);
ljError = ePut(ljHandle, LJ_ioPUT_DIGITAL_PORT, 0, numbers[j][0], 7);
Sleep(5);
}
}
}
return 0;
}
}
void ErrorHandler (LJ_ERROR ljError, long lngLineNumber)
{
char err[255];
if (ljError != LJE_NOERROR)
{
ErrorToString(ljError, err);
printf("Error # %ld: %s ", ljError, err);
printf("Source line number = %ld ", lngLineNumber);
if(ljError > LJE_MIN_GROUP_ERROR)
{
getchar();
exit(0); ]
}
}
}
const int numbers[10][1] = {
{64},
{121},
{36},
{48},
{25},
{18},
{2},
{120},
{0},
{24}
};
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