DFPORT
in [Fortran]
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From: daniela on 28 Jul 2006 05:32 Hi all, I am new to Fortran and I appologize in advance for any trivia I might ask. I am trying to compile some example code written in Fortran77 that uses DFPORT, i.e. : USE DFPORT What is this library and where can I get it from? I work on a Windows XP platform. Many thnaks in advance for your help. Regards, Daniela.
From: Tom Micevski on 28 Jul 2006 07:24 daniela wrote: > Hi all, > I am new to Fortran and I appologize in advance for any trivia I might > ask. > I am trying to compile some example code written in Fortran77 that uses > DFPORT, i.e. : > USE DFPORT > > What is this library and where can I get it from? > I work on a Windows XP platform. use digital or compaq fortran (maybe even intel fortran?). note, the DF in DFPORT indicates some form of digital/compaq(/intel?)-specific module.
From: Craig Powers on 28 Jul 2006 11:51 daniela wrote: > Hi all, > I am new to Fortran and I appologize in advance for any trivia I might > ask. > I am trying to compile some example code written in Fortran77 that uses > DFPORT, i.e. : > USE DFPORT > > What is this library and where can I get it from? > I work on a Windows XP platform. > > Many thnaks in advance for your help. It's a compatibility library from Digital Fortran. The equivalent for ifort is IFPORT. If you're not using DVF, CVF, or ifort, then the answer to "where can I get it from" depends on your compiler. Some compilers (e.g. gfortran) include many of the things in IFPORT as intrinsics. For others, you may need to write your own portability module to translate from the versions available on the platform to the interface provided by DFPORT.
From: Craig Powers on 28 Jul 2006 11:59 Craig Powers wrote: > daniela wrote: > >> Hi all, >> I am new to Fortran and I appologize in advance for any trivia I might >> ask. >> I am trying to compile some example code written in Fortran77 that uses >> DFPORT, i.e. : >> USE DFPORT >> >> What is this library and where can I get it from? >> I work on a Windows XP platform. >> >> Many thnaks in advance for your help. > > > It's a compatibility library from Digital Fortran. The equivalent for > ifort is IFPORT. If you're not using DVF, CVF, or ifort, then the > answer to "where can I get it from" depends on your compiler. Some > compilers (e.g. gfortran) include many of the things in IFPORT as > intrinsics. For others, you may need to write your own portability > module to translate from the versions available on the platform to the > interface provided by DFPORT. BTW, any code that includes the line USE DFPORT is not F77. It's at least Fortran 90. There is no USE statement in F77.
From: Terence on 28 Jul 2006 19:35
daniela > I am new to Fortran and I appologize in advance for any trivia I might ask. > I am trying to compile some example code written in Fortran77 that uses > DFPORT, i.e. : > USE DFPORT > > What is this library and where can I get it from? > I work on a Windows XP platform. I researched this subject as best I could over about a six month period. My company markets software since 1972, just one program unit of which reads and writes aynchronous devices through the RS323C ports and which worked on MS DOS, Windows command lines under Windows on all Intel 286, 386 and pentium computers with all the MS operating systems from DOS. through Windows 3.1, 95, and up to XP, where it refused to work on only XP operation systems (so far). We normally use F77 Fortran and for this one problematic program we re-wrote the program in F90 and used the CVF (DVF) libraries to bring in the necessary relationship with the MS API's, using the SPORT routines provided. These are also available on the Intel version 9 compiler Note: you HAVE to use F90 or above if you want to refer to a communications library with the USE instruction. We found that these routines would not work as WE needed, but they reportedly do work in other cases cases. Because we found we could not set some parameters as we required, by the normal port initialization routine in the SPORT modules, (it appeared they did not change) we tried to use the MODE command internally to the program to achieve the same effect. We used the SYSTEM call to request the MODE command to set up the needed parameters (baud rate, frame size, number of data and stop bits, parity,time-out times, etcetera). We found some port parameters COULD be changed with the MODE command used internally, others could NOT be changed. The command seemed to work externally correctly, but internal querying of the parameters did not give the same values as we set them. Since we also have the Intel Fortran compiler, we also had a lot of help from that source (and with the CVF 6.6 compiler). But we were not able to resolve our problem, to this day. Note: we COULD communicate between an XP and a 2000 computer, but we could not change any parameter sucessfully beyond baud rate, and still get communication. Especially we never got any time-out indications on disconnecting the cables. On some parity settings there were no electrical signals on the intergace. We never got our new program to work on XP operating systems with any Windows Fortran comper (with appropriate libraries). So our clients still use a DOS environment for their data collection (using one dedicated W98 or DOS machine). The devices our clients want to control are hardware devices where only certain combinations of signalling parameters were valid for the equipment. The manufactures had to come out with a USB-connected device at over 3 times the old price in order to work on windows (and supplied their own very limited data format Windows XP software for the data collection, which was unsuitable for our clients). If you want to work under Windows I think you might have a problem if the parameters to be used ara unusual. Ours were odd parity, 7 bits, and 2 stop at any baud rate from 9600 up. If you have a problem and you are prepared to use DOS mode on an earlier operating system than XP we can contribute the libraries and calling conventions for compiling your F77 code. .. Terence Wright |