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Sun Microsystems S16A s16asetoutputbits, s16astartbuffers, Description, Syntax, Arguments, s16ap

Models: S16A

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S16A User’s Guide

Input and Output

s16a_set_output_bits

Description

Set the output resolution of the S16A to 16 or 20 bits.

Syntax

int s16a_set_output_bits(S16aDev *s16a_p, int value);

Arguments
s16a_p	S16A device handle returned from s16a_open
value	Either 16 or 20, indicating the operational mode of the output DAC.

Return

Returns 0 on success or –1 on failure. Fails if s16a_p does not refer to an output channel, or if value is anything but 16 or 20. Sets errno on failure.

s16a_start_buffers

Description

Releases the specified number of buffers to the driver for transfer.

Syntax

int s16a_start_buffers(S16aDev *s16a_p, int bufnum);

Arguments
s16a_p	S16A device handle returned from s16a_open
bufnum	Number of buffers to release to the driver for transfer. An argument of 0 causes the driver
	to perform continuous transfers.

Return

0 on success; –1 on error. If an error occurs, check the errno global variable for the error number.

EDT, Inc. October, 1996

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Sun Microsystems S16A s16asetoutputbits, s16astartbuffers, Description, Syntax, Arguments, s16ap, value, Return, bufnum

Contents

USER’S GUIDE S16AS16A User’s Guide Contents Tables Input and Output OverviewInstallation SpecificationsUsing SunOS Version InstallationInstalling the Hardware Installing the Software4. Place the diskette that came with the S16A into the diskette drive volcheck pkgadd -d /floppy/floppy0 EDTs16a Using System V Release 4 Solaris 2.4 or LaterBuilding the Sample Programs make unloadIncluded Files Elements of S16A Applications Input and OutputTable 1. General DMA Library Routines DMA Library RoutinesRoutine DescriptionTable 2. S16A-specific Library Routines s16abufferaddressesRoutine DescriptionDescription s16acancels16acancelcurrent s16achecknextbufferint s16acloseS16aDev *s16ap s16acloseDescription SyntaxArguments s16aconfigureringbuffersDescription SyntaxSyntax s16adones16agetdaccontrolreg DescriptionSyntax s16agetdiodataregs16agetdiodirectionreg DescriptionSyntax s16agetoutputbitss16aopen DescriptionSyntax s16areads16aserialread DescriptionNumber of characters in the command string s16aserialstrs16aserialwrite Null-terminated command string to send to the Analog Input ModuleSyntax s16asetdefaultss16asetdaccontrolreg DescriptionSyntax s16asetdiodataregs16asetdiodirectionreg DescriptionSyntax s16asetoutputbitss16astartbuffers DescriptionSyntax s16astopbufferss16awaitforbuffer DescriptionSyntax s16awaitfornextbuffers16awrite DescriptionError Condition Error Conditionsfoiparityerror Error CodeElectrical Interface Hardware InterfaceS16A I/O Interface SignalsSignal Table 4. S16A Interface SignalsSignal Connector PinoutThe S16A uses a 37-pin D connector, such as an AMP SignalRegisters Figure 1. S16A SBus Addresses SBus AddressesDMA Channel DMA RegistersCurrent DMA Address Registers Next DMA Address RegistersTable 8. Next DMA Address Registers Current Count RegistersControl and Next Count Registers DescriptionDIO Data Register Direct I/O RegistersDAC Output Control Register DIO Direction RegisterTable 11. DAC Output Control Register Analog Input Module Internal RegistersS16A DescriptionDescription Input Configuration RegistersInput Clock Prescale Registers Value hexTrim Register Trim RegistersDescription Table 14. Input Gain High Byte ValuesTrim Input Gain Registers Analog Input Module UART RegistersTemperature Register Analog Input Module Control ProtocolNumber of the Input Configuration register to be written. 2 is input Write to an Input Configuration RegisterRead from an Input Configuration Register Read a 16-bit value from a Input Configuration registerDnmm UART Command/Status RegisterTable 16. UART Command/Status Register Write to a Trim RegisterUART Data Register Xilinx Programming RegistersSoftware SpecificationsPower SBus ComplianceReferences get README Contacting EDTcd /pub/s16a/4x Index

s16a_set_output_bits

Either 16 or 20, indicating the operational mode of the output DAC.

s16a_start_buffers

bufnum

to perform continuous transfers.