Details, datasheet, quote on part number: SW-800
PartSW-800
CategoryInterface and Interconnect => Bar Code
TitleBar Code
DescriptionSoftware Drivers-windows(r) And Dos(r)
CompanyAnalog Devices
DatasheetDownload SW-800 datasheet
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Features, Applications

FEATURES Supports Popular Languages Windows 3.1 Microsoft Visual BASIC for Windows Microsoft Visual C++ for Windows Borland Turbo C++ for Windows Borland Turbo Pascal for Windows MS-DOS Microsoft Interpreted GWBASIC IBM Interpreted BASIC Microsoft QuickBASIC Microsoft C/C++ Borland Turbo C++ Borland C++ Borland Turbo Pascal Callable Subroutine Libraries Analog and Digital l/O Frequency and Event Counting Pulse Output Interrupt Servicing

USER APPLICATION PROGRAM (WRITTEN IN VISUAL BASIC FOR WINDOWS)

The SW-800 Series of Windows and DOS Drivers are software packages that provide subroutine calls to access the I/O functions of the RTI-800 Series Analog and Digital boards. There are four hardware-specific packages. Each package includes support for high level languages in both Windows 3.X and DOS. (See list of supported languages in the features chart.) The driver software packages provide a high level interface to the RTI-800 Series Analog and Digital boards. Complex analog, digital, and counter/timer I/O operations are simplified with keywords such as SCAN, AOT, FINSTART. In order to use the driver software, experience with a programming language such as BASIC or VISUAL BASIC for Windows and familiarity with the application is required. Each SW-800 Series driver software package consists of all language libraries and a board library for the specific hardware supported. The language libraries include a language binding that handles the different parameter passing conventions used by the languages, as well as calls to the hardware libraries. Board libraries contain the low level subroutines that perform the I/O routines. Common language-specific packages within the SW-800 Series can be merged to run in one system. For example, if a user wants to operate an RTI-815 and RTI-827 board in the same system and wants to develop an application in Microsoft C++, the SW-800 and SW-827 packages can be combined using the LINK facility.

An error-processing system checks for argument errors in every setup and I/O subroutine. Attempts to operate in illegal modes are trapped, and error codes are reported. Run-time errors such as "Overrun error detected" are also reported. Table I lists the I/O routines in the SW-800 Series of MS-DOS and Windows Driver Software packages. The target system for the SW-800 Series of Driver Software is an IBM PC/AT or 100% compatible system with PC-DOS, MS-DOS (Version 3.3 or higher), or Windows 3.1, and one floppy disk drive and one hard disk drive. Table II lists application software packages, available from third party vendors, which require little or no programming on the part of the user prior to configuring and running an application. Applications range from simple data collection and analysis to real-time control and high speed streaming of data to disk.

Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 Analog Devices, Inc., 1998

A 3.5" utilities disk (SW-UTIL-D3) is shipped with each RTI800 Series board. This disk contains the programs listed below. EXER--Self-documenting, menu-driven program that allows access to all the RTI-800 Series board's functionality through software. EXER can be used as a diagnostic tool as a means of becoming familiar with the capabilities of the board prior to developing an application program.

DMACONF, MLTDLOAD--Used to configure and allocate DMA buffers. If RTI-800 Series boards have unique DMA channels, then multiple boards can perform DMA-based operations at the same time. CONF--Creates a table containing RTI-800 Series hardware configuration information that is used by the SW-800 Series Driver Software and some application-specific software packages. CAL835, CAL860--Calibrates the analog I/O circuitry of RTI-800 Series boards.

The following sample is a fragment of a Microsoft C program using the SW-860 Driver package that simultaneously samples two channel groups on the RTI-860 board and stores the data in on-board memory. Channel Group 3 is read first (Group 3 consists of Channels 13, 14 and 15); Channel Group 0 (consisting of Channels 1, 2 and 3) is read next. This sequence repeats until the sample count is satisfied. CHECK verifies that the operation is complete. When the data is required. RBUF transfers it from on-board memory to the userdefined array in system memory. { INITIALIZE (&erstat); if (erstat) printf ("\n\tINITIALIZE error: %2d\n'',erstat); else board=7; chanarr[0]=2: /*two groups in channel sequence*/ chanarr[1]=3; /*group 3 is first group in sequence*/ chanarr[2]=0: /*group 0 is second group in sequence*/ range=1000; mult =10; /*pacing interval = range times mult microseconds*/ count=400; simul=1; /*enables simultaneous sampling*/ brdbuf=1000; /*starting location in on-board memory*/ BSCAN860 (lchan,board,chanarr,range,mult,count,simul,&erstat); if (erstat) printf ("\n\tBSCAN setup error: %2d\n",erstat); else { BSCAN(lchan,brdbuf,&erstat); CHECK(lchan,&erstat); while (!erstat) CHECK (lchan,&erstat}; if (erstat!=117) printf ("mn\tRBUF error: %2d\n",erstat); else { RBUF (lchan,dest,&erstat); if (erstat) printf ("\n\tRBUF error: %2d\n",erstat); else { printf ("\n\n\tBSCAN values: \n\n"); for (lp=0; lp<< count; lp++) printf ("%8d",dest[lp]);

Operation/ Routine ANALOG INPUT (X)AIN (X)AING (X)COLLECT (X)CCOL BCOL (X)SCAN (X)CSCAN BSCAN (X)AVG (X)CAVG RBUF ANALOG OUTPUT (X)AOT (X)AOTG DIGITAL INPUT DINB DIN DIGITAL OUTPUT DOTB DOT DOTR FREQUENCY INPUT FINSTART (X)FINREAD FINSTOP EVENT COUNTING EVINIT EVSTART EVSTOP EVREAD PULSE OUTPUT PULSE PULSTART PULSTOP Description

Acquires data from a single analog input channel. Acquires data (polled) from a group of analog input channels. Use DMA (paced) to acquire data from a single input channel. Collects data (paced) from a single analog channel and continuously transfers the data to system memory. Acquires data (paced) from an input and stores it in on-board memory. Uses DMA to acquire data from a group of inputs (paced). Acquires data (paced) from a user-specified sequence of channels and continuously transfers the data to system memory using interrupts. Acquires data (paced) from a user-specified sequence of channels into on-board memory. Uses DMA to acquire data from an analog input channel and averages the data. Acquires data from an analog input channel, continuously transferring the data to system memory (paced) and returns the average value. Transfers data from on-board memory into system memory. Writes a value to a single analog output channel. Writes multiple values to a single analog output channel or a group of analog output channels.

Reads one bit from a digital I/O port. Reads eight bits from a digital I/O port. Writes one bit from a digital I/O port. Writes eight bits from a digital I/O port. Reads back last value written to output port. Starts a frequency input operation. Returns the frequency measured. Stops a frequency input operation. Initializes counter/timer for event counting. Starts the event counting operation. Stops the event counting operation. Reads the number of events counted. Outputs a pulse. Starts a pulse train with a user-specified period and duty cycle. Stops the pulse output train operation. Converts counts to engineering units or engineering units to counts. Defines linear relationships used for scaling analog inputs. Sets debounce time. Defines triggering parameters. Defines gate parameters. Activates a specified function upon receipt of an interrupt. Disables an interrupt enabled by ACTIO. Defines a user-specified value that is written to a counter/timer, digital or analog output channel upon program termination. Clears the specified logical channel. Postpones execution of the code for up to one hour. System routine that resets all RTI-800 series boards in system.

CONVERSION AND LINEARIZATION CONV SETSCALE MISCELLANEOUS DEB TRIG GATE ACTIO CLRIO SETOUT CLCHAN DELAY* INITIALIZE

An (X) indicates that the value can be expressed as an integer (raw counts from A/D or D/A) as a real number in engineering units, i.e., volts, amps, psi, Hz. *Not available in windows.


 

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