S16asetdaccontrolreg, S16asetdefaults | Sun Microsystems S16A

S16A User’s Guide

Input and Output

s16a_set_dac_control_reg

Description

Write a specified value to the output DAC Control register.

Syntax

int s16a_set_dac_control_reg(S16aDev *s16a_p, int value);

Arguments
s16a_p	S16A device handle returned from s16a_open
value	Value to write to the DAC Control register.

Return

Returns 0 on success or –1 on failure. Fails if s16a_p does not refer to an output channel. Sets errno on failure.

s16a_set_defaults

Description

Resets the S16A configuration to its default state:

•The Xilinx Programming registers are set to S16A_XRESET and then cleared.

•The UART Command/Status register and the DAC Output Control register are set to 0.

•Gain and offset values are set from /dev/s16a.cfg, which is generated when you run s16acalibrate.

•Ring buffer mode is disabled and driver- or library-allocated ring buffers are released.

Syntax

int s16a_set_defaults(S16aDev *s16a_p);

Arguments

s16a_p

S16A device handle returned from s16a_open

Return

Return value from ioctl call to driver: 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 manual S16asetdaccontrolreg, S16asetdefaults

Contents

S16A EDT, Inc. October Contents Tables Overview Installing the Hardware InstallationInstalling the Software Using SunOS Version S16A User’s Guide Installation Building the Sample Programs Using System V Release 4 Solaris 2.4 or Later Readme Included Files Elements of S16A Applications Input and Output DMA Library Routines Routine DescriptionGeneral DMA Library Routines S16A-specific Library Routines S16abufferaddressesSyntax Arguments S16acancel S16acancelcurrentS16achecknextbuffer S16aclose Arguments S16aconfigureringbuffers S16agetdaccontrolreg S16adone S16agetdiodirectionreg S16agetdiodatareg S16aopen S16agetoutputbits S16aserialread S16aread S16aserialwrite S16aserialstr S16asetdaccontrolreg S16asetdefaults S16asetdiodirectionreg S16asetdiodatareg S16astartbuffers S16asetoutputbits S16awaitforbuffer S16astopbuffers S16awrite S16awaitfornextbuffer Error Conditions FoiparityerrorError Codes and Conditions Electrical Interface Hardware Interface Interface Signals Signal S16A I/O DescriptionS16A Interface Signals Connector Pinout Pin SignalConnector Pinout Registers S16A ROM SBus Addresses DMA Registers Current DMA Address RegistersNext DMA Address Registers Control and Next Count Registers Current Count Registers DAC Output Control Register Direct I/O RegistersDIO Direction Register DIO Data Register DAC Output Control Register Analog Input Module Internal RegistersName Description Analog Input Module Internal Registers Input Clock Prescale Registers Input Configuration Registers Input Gain High Byte Values Trim RegistersTrim Register Use Trim Registers Trim Output Offset Registers Analog Input Module Uart Registers Temperature RegisterAnalog Input Module Control Protocol Trim Input Gain Registers Read from an Input Configuration Register Write to an Input Configuration RegisterWrite to a Clock Prescale Register Read from a Clock Prescale Register Read the Temperature Register Uart Command/Status RegisterUart Command/Status Register Write to a Trim Register Uart Data Register Xilinx Programming Registers Specifications References Contacting EDT 15-16 Index Configuration ROM