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PC-414SRC Datasheet(PDF) 4 Page - List of Unclassifed Manufacturers |
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PC-414SRC Datasheet(HTML) 4 Page - List of Unclassifed Manufacturers |
4 / 14 page PC-414 ®® DATEL, Inc., Mansfield, MA 02048 (USA) • Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 • Email: sales@datel.com • Internet: www.datel.com The FIFO data output may also be routed under host software control to an on-board parallel data port instead of being sent to the computer bus. This parallel burst channel data may be read by an external processor at very high speeds and avoids possible speed restrictions of the computer bus. The outport uses a very simple ready/acknowledge transfer handshake which is adaptable to any remote parallel port including DT Connect®. See model PC-414COM using a DSP COMM port interface. The analog section of the PC-414 is optimized for high signal quality and very low dynamic noise. The PC-414 is ideal as an FFT “front-end” or DSP quantizer for array processors. The A/D conversion timing section is designed for accurate multi- scan data acquisition. Software programmable timers control the interval between each conversion and each multichannel scan. A programmable sample counter allows sample blocks of specified length independent of FIFO length. The timer/counter section uses a precision on-board crystal clock. Timeout and sample count activities may be monitored using I/O status registers and/or programmable interrupts. The interrupt method may be fully synchronized with software programmable DMA transfers directly to host computer memory. S/H - A/D triggering can originate from several sources under software control. The internal timebase is the normal trigger source although single conversions or scans may be directly commanded by host I/O register writes. An external trigger clock may also be used to precisely synchronize sampling with external events. This external trigger may start a single multichannel scan or “N” multiple scans separated by programmable delays. Analog sampling can also be level-triggered using an on-board analog comparator and an external level input. The reference trigger level to the comparator is derived from an on-board 12- bit D/A converter. If preferred, the D/A converter may also be used as a general purpose analog output channel. The PC-414B, D, F, G, H, K, M, N, and P versions contain five SMA coaxial signal connectors. Four connectors are for the sampled analog channels. The fifth connector is used for external timebase clock input, external analog trigger signal, or for the analog output. The PC-414E, J, and L versions contain 25-pin “D” connectors (DB-25S). The burst channel parallel port uses an internal dual row header. The computer interface conforms to the PC-AT bus structure. All data transfers (control, status, and A/D data) use 16-bit transfers. Interrupt level selection is done via software. Interrupt servicing is generated for a variety of reasons such as A/D data read, DMA terminal count, sample count reached, FIFO half-full, or FIFO full. A/D output data coding is right-justified two’s complement with sign extension, if desired, straight binary coding can also be selected making it directly compatible with high level computer languages such as “C”, Visual C++, Borland C Builder, Visual Basic, and others. Software The PC-414 can be controlled via optional DOS or Windows NT or 95/98 Control panels, third party software such as LabVIEW, or user written code in languages such as Visual C++, Borland C Builder, Visual Basic, etc. PC-414SET An MS-DOS based menu driven acquisition program. Includes setup and configuration functions, data acquisition via interrupt and DMA, D/A and counter timer control. Software also includes A/D and D/A calibration procedures. • Automatically configures to the display adapter, CPU, and mouse • Sets the I/O base address • Initializes the interrupt and DMA systems and D/A output • Allocates base or extended memory • Performs self-test and A/D-D/A calibration • Configures A/D sample rate, frame rate, and sample counter • Selects trigger mode and DMA or I/O block transfer • Selects disk file output format to integer binary, float binary, or ASCII float • Saves data to base memory, extended memory, or disk • Full source code in “C” and assembly is available • MS-DOS or WINDOWS version (visual “C” interface) PC-414SRC Source code for PC-414SET, written in C. PC-414WIN A Windows 95/98 or NT GUI control panel PC-414NT incorporates all the functions of the PC-414. Functions include configuration and setup, analog input to file or disk, analog output, analog and digital triggering, digital I/O, and calibration. PC-414WINS Source code for PC-414WIN written in Borland C Builder. PC-414LV Bridge driver software to LabVIEW 4.0 and 3.1. PC-414LVS Source code for PC-414LV allows users to reduce high level VI’s to lower level VI’s. Figure 2. PC-414SET Software Operation Analog Inputs PC-414SET • Window-driven user interface • Configure hardware • Start acquisition • Send data over parallel port • Store data to memory and /or disk file • View data • Access digital I/O port • A/D and D/A calibration • Update D/A PC-414 Remote receiver e.g. DSP board, memory board, etc. Host Memory User written program D/A Converter Graphics Display Disk Display Parallel Port Start & Exit Mode 80 |
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