Sun Microsystems EDT S16A Manual de usuario Pagina 1

ETDS16ASBus 16-bit Dual Analog Interfacefor the Sun SPARCstationUSER’S GUIDE008-00630-01

Input and Output S16A User’s Guide6 EDT, Inc. October, 1996Input and OutputThe driver can perform two kinds of DMA transfers: continuous and nonconti

S16A User’s Guide Input and OutputEDT, Inc. October, 1996 77. The -ls16a option to the compiler, to link the library file libs16a.a with your program

Input and Output S16A User’s Guide8 EDT, Inc. October, 1996The following driver-specific routines are also available:Table 2. S16A-specific Library R

S16A User’s Guide Input and OutputEDT, Inc. October, 1996 9s16a_cancelDescriptionStops any transfers currently in progress, resets the ring buffer po

Input and Output S16A User’s Guide10 EDT, Inc. October, 1996s16a_closeDescriptionCloses the device associated with the device handle and frees the ha

S16A User’s Guide Input and OutputEDT, Inc. October, 1996 11s16a_configure_ring_buffersDescriptionConfigures the SBus 16-bit Dual Analog Interface ri

Input and Output S16A User’s Guide12 EDT, Inc. October, 1996s16a_doneDescriptionReturns the cumulative count of completed buffer transfers.Syntaxint

S16A User’s Guide Input and OutputEDT, Inc. October, 1996 13s16a_get_dio_data_regDescriptionGet current state of the DIO Data register. The low 12 bi

Input and Output S16A User’s Guide14 EDT, Inc. October, 1996s16a_get_output_bitsDescriptionGet the output resolution of the S16A. Returns 16 or 20, r

S16A User’s Guide Input and OutputEDT, Inc. October, 1996 15s16a_readDescriptionPerforms a read on the S16A. The UNIX 2 GB file offset bug is avoided

S16A User’s GuideiiEDT, Inc. October, 1996The information in this document is subject to change without notice and does not represent a commitmenton

Input and Output S16A User’s Guide16 EDT, Inc. October, 1996s16a_serial_strDescriptionSend a command string to the Analog Input Module. Read the resp

S16A User’s Guide Input and OutputEDT, Inc. October, 1996 17s16a_set_dac_control_regDescriptionWrite a specified value to the output DAC Control regi

Input and Output S16A User’s Guide18 EDT, Inc. October, 1996s16a_set_dio_data_regDescriptionWrite a specified value to the DIO Data register. Only th

S16A User’s Guide Input and OutputEDT, Inc. October, 1996 19s16a_set_output_bitsDescriptionSet the output resolution of the S16A to 16 or 20 bits.Syn

Input and Output S16A User’s Guide20 EDT, Inc. October, 1996s16a_stop_buffersDescriptionStops DMA transfer after the current buffer has completed, wh

S16A User’s Guide Input and OutputEDT, Inc. October, 1996 21s16a_wait_for_next_bufferDescriptionBlocks until the next buffer is returned from the dri

Input and Output S16A User’s Guide22 EDT, Inc. October, 1996foi_parity_errorDescriptionChecks to determine if a parity error has occurred since the l

S16A User’s Guide Hardware InterfaceEDT, Inc. October, 1996 23Hardware InterfaceThis section describes how to connect your device to an S16A interfac

Hardware Interface S16A User’s Guide24 EDT, Inc. October, 1996Interface SignalsThe following table describes the signals in the external connector.Si

S16A User’s Guide Hardware InterfaceEDT, Inc. October, 1996 25Connector PinoutThe S16A uses a 37-pin D connector, such as an AMP 748878-1.The followi

S16A User’s GuideEDT, Inc. October, 1996 iiiContentsOverview...

Registers S16A User’s Guide26 EDT, Inc. October, 1996RegistersThe S16A SBus 16-bit Dual Analog Interface is configured and controlled with 8-bit and

S16A User’s Guide RegistersEDT, Inc. October, 1996 27SBus AddressesThe addresses listed in the figure below are offsets from the SBus slot base addre

Registers S16A User’s Guide28 EDT, Inc. October, 1996DMA RegistersThe S16A provides four independent DMA channels: one each for input and output for

S16A User’s Guide RegistersEDT, Inc. October, 1996 29These registers hold the address of the next DMA transfer to be performed for each channel. When

Registers S16A User’s Guide30 EDT, Inc. October, 1996Direct I/O RegistersThe S16A provides 12 pins in its external connector that can be used for gen

S16A User’s Guide RegistersEDT, Inc. October, 1996 31Analog Input Module Internal RegistersThe Analog Input Module contains 11 internal registers, de

Registers S16A User’s Guide32 EDT, Inc. October, 1996Input Clock Prescale RegistersThe Analog Input Module contains two 1-byte Input Clock Prescale r

S16A User’s Guide RegistersEDT, Inc. October, 1996 33Trim RegistersThe Analog Input Module contains six Digital-to-Analog converters (DACs) that cont

Registers S16A User’s Guide34 EDT, Inc. October, 1996Trim Input Gain RegistersThese two trim registers control the fine-tuning of the analog I/O inpu

S16A User’s Guide RegistersEDT, Inc. October, 1996 35Write to a Clock Prescale RegisterThe clock prescale registers are written by sending a four-byt

S16A User’s Guideiv EDT, Inc. October, 1996TablesGeneral DMA Library Routines ...

Registers S16A User’s Guide36 EDT, Inc. October, 1996Write to a Trim RegisterThe trim registers are written by sending a four-byte sequence beginning

S16A User’s Guide RegistersEDT, Inc. October, 1996 37UART Data RegisterThe UART Data register is and 8-bit register at address 0400C4x. This register

Specifications S16A User’s Guide38 EDT, Inc. October, 1996SpecificationsThe SBus 16-bit Dual Analog Interface conforms to the following specification

S16A User’s Guide ReferencesEDT, Inc. October, 1996 39ReferencesThe following additional documentation may prove helpful.Burr-Brown PCM1702 product s

Contacting EDT S16A User’s Guide40 EDT, Inc. October, 1996Contacting EDTContact EDT directly at the following address or phone numbers:Engineering De

S16A User’s Guide IndexEDT, Inc. October, 1996 41IndexAADC16071. See National SemiconductorADC16071Analog Input Module ...

Index S16A User’s Guide42 EDT, Inc. October, 1996Register bitsBURST_EN ...30DIFFERENTIAL ...

S16A User’s Guide OverviewEDT, Inc. October, 1996 1OverviewThe S16A SBus 16-bit Dual Analog Interface is a single-slot board for SBus-based computer

Installation S16A User’s Guide2 EDT, Inc. October, 1996InstallationInstalling the S16A SBus 16-bit Dual Analog Interface is a two-step process. First

S16A User’s Guide InstallationEDT, Inc. October, 1996 34. Place the diskette that came with the S16A into the diskette drive.5. The S16A driver and r

Installation S16A User’s Guide4 EDT, Inc. October, 19963. Enter:make unloadUsing System V Release 4 (Solaris 2.4 or Later)If you are using Sun System

S16A User’s Guide InstallationEDT, Inc. October, 1996 5Included FilesThe S16A driver release diskette contains the following files (see the readme fi