I/O library fails to initialize (windows xp)

[snest]

Hello,
I am trying to run a simple PWM program on windows xp:

Code: Select all


#include "stdafx.h"
#include "iostream"
#include "roboard_dll.h"

#include <stdio>
#include <string>
#include <stdlib>

using namespace System;
using namespace std;

int main(array<System> ^args)
{
      
    int channel = 0;
   unsigned long usedchannel;
    unsigned long period  = 20000;
    unsigned long duty    = 1000;
    unsigned long count   = 300;

   usedchannel = RCSERVO_USECHANNEL0 + RCSERVO_USECHANNEL1 + RCSERVO_USECHANNEL2 + RCSERVO_USECHANNEL3 + RCSERVO_USECHANNEL4 + RCSERVO_USECHANNEL5 + RCSERVO_USECHANNEL6 + RCSERVO_USECHANNEL7 + RCSERVO_USECHANNEL8 + RCSERVO_USECHANNEL9 + RCSERVO_USECHANNEL10 + RCSERVO_USECHANNEL11 + RCSERVO_USECHANNEL12 + RCSERVO_USECHANNEL13 + RCSERVO_USECHANNEL14 + RCSERVO_USECHANNEL15;


   roboio_SetRBVer(110);
    // Initialize PWM interface
   
    if (rcservo_Initialize(usedchannel) == false)
    {
        printf("ERR: fail to initialize RCSERVO (%s)!\n", roboio_GetErrMsg());

      
        return 1;
    }
   
    rcservo_EnterPWMMode();

    rcservo_SendPWMPulses(channel, period, duty, count);

    printf("Start to send %ld PWM pluses with period %ld us\n"
           "and duty %ld us on PWM channel %d.\n\n", count, period, duty, channel);

    while(rcservo_IsPWMCompleted(channel) == false);

    printf("Send %ld PWM pulses completed.\n", count);
    rcservo_Close();
   
   
    return 0;
}


However, I get the error message "I/O library fails to initialize!"

I have tried running the program as administrator, and that did not help.

Thanks in advance for your help.

[roboard]

However, I get the error message "I/O library fails to initialize!"

Please put Winio.sys and Winio.dll in the same directory and try it again.

[snest]

Thank You! This did the trick.

What is the purpose of WinIO.dll and WinIO.sys? Are those there to help the executable access the RoBoIO.dll file?

Also, are RoBoIO.dll, WinIO.dll and WinIO.sys the only files I need to include with my executable to get full functionality of the RoBoIO library?

Excuse the beginner questions, this is a learning project .

Thanks again.

[roboard]

What is the purpose of WinIO.dll and WinIO.sys? Are those there to help the executable access the RoBoIO.dll file?

Also, are RoBoIO.dll, WinIO.dll and WinIO.sys the only files I need to include with my executable to get full functionality of the RoBoIO library?

RoBoIO employs WinIO to access I/O ports under WinXP. You need to put RoBoIO.dll, WinIO.dll, and WinIO.sys in the same directory, as well as install VC2005/VC2008 SP1 runtime redistributable package, for executing WinXP RoBoIO application.