[DEMOx.DAT file for MCC's InstaCal]

Thanks for your response. This is a very lengthy response. What you sent me does not answer my question. What I will try to show below is first, that the Instacal and DEMO-BOARD work fine in my 32-bit version of my program. But when I compile and run in 64-bit, it does not. So IO repeat my questions: 1) does the 64-bit Instacal cbw64.dll support replaying data using DEMO0.DAT files; and 2) if so, is there a new file format specification you can send me so I can generate such files from my user data?

I made sure I have your ver 6.73 installed, and I am running the 64-bit Windows 10, all the latest updates applied. Note that Instacal is a 32-bit program (as you point out, it is installed in c:\Program Files (x86)...., the standard location for 32-bit programs in Win64), but the install package comes with a 64bit version of the .dll file that one can link into a custom program. My custom program runs fine in  64-bit version doing raw data acquisition, it just does not work replaying DEMO0.DAT files. Details:

Here is the DEMO board using a sine wave:

Here is image from my custom 32-bit program using cbw32.dll, demo board and the damped sine wave:

Now switching to your DEMO0.DAT file, I dont get anything using the Instacal test, loopback, but my program does see data. Is there something wrong with my setup there?) This is channels 2 and 3 in the top panel and 4 and 5 in the bottom. Channel 5 appears to have nothing, and I did not see anything in channel 0. Note the units in these graphs are physiological units, NOT VOLTAGES. And, BTW, these signals look a lot like a human subject breathing, gas channels in 1 & 2 and some kind of flow signal in chan 3! How did you generate this file?

Now here is a 'replay' of data one of my users sent. I created this DEMO0.DAT file using the algorithm in my OP. Still Instacal ver 6.73 using cdw32.dll:

Top two panels are chans 1 & 2 showing two flow signals generated by a human breathing. Bottom two are O2 and CO2 from a mass spectrometer. You can clearly see the breathing cycle in both panels. Instacal shows nothing in the loopback test. Am I doing something wrong with setup there? Clearly it is working, but instacal shows nothing.

Now I compile my program as a 64-bit. That means it now uses cbw64.lib to compile and therefore cbw64.dll at run time If I try to build with cbw32, it does not compile, I get compiler errors that none of the calls to MCC are present (e.g. cbAInScan, the one I use the most...). Here is output from my program using the DEMO board and the sine wave.

Clearly, the 64-bit dll still has the sine wave feature. But using your DEMO0.DAT files shows nothing (even though it worked fine in the 32-bit, see above):

And, finally, a DEMO0.dat file generated from user data by my program, which again, worked fine in 32-bit, gave same output as above.

See my questions to you at the top of this response, and see my original post for the file format information I use to create DEMO0.DAT files.

 

 

 

 

 

 

[DEMOx.DAT file for MCC's InstaCal]

I develop software from home for several labs using MCC dacq boards and the Universal Library for C++. These laboratories run my proprietary software to collect data for physiological testing in (mostly) exercise physiology laboratories. The software is quite specialized and requires a $70,000+ instrument called a respiratory mass spectrometer. It is WAAAY beyond my budget to set myself up with one at home. So I have relied heavily on being able to do 'repolays' of data acquisition sessions to convert the raw data they send to me in proprietary-formatted binary files into DEMO0.DAT files, using information shared by one of the kind engineers at MCC years ago (probably 5+). BUT the 64-bit version of Instacal apparently does not read these files, or they are in a different format. This means I am stuck as I rely on this feature heavily. Is there any chance either a) someone can share the 64-bit version of the file format (in case it still works) or b) resurrect that feature?

Thanks for your help and support!

Just FYI, here is the information I use to construct DEMO0.DAT files extracted from my proprietary-formatted binary raw data files (usually sampled at 100 Hz per channel).

  Here is the format of the binary file:
  ASCII Identifier (20 bytes) = "CB Raw Data File  \r\n"
  ASCII Date String (10 bytes) - date file was last written to (07/24/19\r\n)
  ASCII Time String (10 bytes) - time file was last written to (12:18 am\r\n)
  Low Chan (integer - 2 bytes) - Low A/D channel scanned
  HighChan (integer - 2 bytes) - High A/D channel scanned
  HzRate (integer - 2 bytes) - Hz component of sampling rate
  kHzRate (integer - 2 bytes) - kHz component of sampling rate (0 for 100Hz total)
  TotalCount (long - 4 bytes) - Number of samples in file (e.g. number (Hichan-LoChan) x # records)
  TriggerIndex (long - 4 bytes) - Index of trigger sample (set to zero)
  GainCode (integer - 2 bytes) - Gain code for A/D
  SkipCount (integer - 2 bytes) - Number of bytes to skip to first data point
  NotUsed (SkipCount bytes)

  Data (TotalCount integers)

 

[DEMOx.DAT files using cbw64.dll]

I have been using this somewhat hidden feature of InstaCal for many years now, but as I am migrating from 32-bit to 64-bit build of my project, I find it does not work for 64 bit. Years ago, someone at MCC sent me documentation to create a DEMO0.DAT file from a source of raw data. I imagine this information is what is used in the cbFileAInScan() routine. I can't use that routine in my code, my approach is to take the raw data created by my users, stored in my proprietary binary file, and write a DEMO0.DAT file to allow me to 'replay' this session through Instacal during development and debugging. So, my question is, does anyone know how I can get hold of the API/file format information to create the DEMO0.DAT file in the 64-bit world? Maybe all the integers (see below) are just twice as big as they used to be?

Here is the info I got from someone at MCC years ago. When I call their engineers today, they tell me that function never worked and is no longer supported. Well, it DOES work in 32-bit version up to the latest InstaCal as far as I can tell.

  Here is the format of the binary file:
  ASCII Identifier (20 bytes) = "CB Raw Data File  \r\n"
  ASCII Date String (10 bytes) - date file was last written to (07/24/19\r\n)
  ASCII Time String (10 bytes) - time file was last written to (12:18 am\r\n)
  Low Chan (integer - 2 bytes) - Low A/D channel scanned
  HighChan (integer - 2 bytes) - High A/D channel scanned
  HzRate (integer - 2 bytes) - Hz component of sampling rate
  kHzRate (integer - 2 bytes) - kHz component of sampling rate (0 for 100Hz total)
  TotalCount (long - 4 bytes) - Number of samples in file (e.g. number (Hichan-LoChan) x # records)
  TriggerIndex (long - 4 bytes) - Index of trigger sample (set to zero)
  GainCode (integer - 2 bytes) - Gain code for A/D
  SkipCount (integer - 2 bytes) - Number of bytes to skip to first data point
  NotUsed (SkipCount bytes)

  Data (TotalCount integers)

 

[Location of InstaCal program's DEMOx.DAT files]

I have a bit different information, and I dont remember where I got it. The DEMOx.dat files are in 

C:\Users\<XXXX>\AppData\Local\VirtualStore\Program Files (x86)\Measurement Computing\DAQ

In any case, I have been using this feature for years, I have a routine that takes raw data created by my end users, generates a DEMO0.DAT file, which then place in the location above. Works like a charm to create 'replay' files that my users create. Allows me to debug the actual data acquistion routines. 

Maybe the program looks in several places??