pas9782: PAS9782/GEN 8 Channel Sine/Pulse Generator

Driver support

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License Agreement

This product is available via the open source license described at the end of this document.

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Contents

Description
Database Overview
Display Overview
License Agreement

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Description

The PAS 9782/GEN is VME based, eight channel function generator card. Each channel provides sine wave, TTL square wave and open drain FET outputs. Each channel has programmable gain amplifier, which provides sine wave output of +/-10V, +/-5V, +/-2V or +/-1V peak to peak. The output frequency is controlled by a 32 bit frequency register; each channel provides two independent frequency registers. Each channel is controlled by two independent phase offset registers. The card provides control and status register and two status LEDs.

The driver support is accessed through asynDriver, which is a general purpose facility for interfacing device specific code to low level drivers. The asyn library provides generic EPICS device support devAsynUInt32Digital, devAsynFloat64. The driver support implements interface asynUInt32Digital, asynFloat64. The driver also implements interface asynDrvUser which allow an asynUser to communicate user specific information to /from a port driver.

Database Overview

Card control and status display:

Name	Type	DTYP	Description
$(user):$(card):reset	bo	asynUInt32Digital	Reset the card
$(user):$(card):bo:enable_disable	bo	asynUInt32Digital	Enable or disable the card
$(user):$(card):bi:enable_disable	bi	asynUInt32Digital	Display enabled/disabled status
$(user):$(card):bi:card_status	bi	asynUInt32Digital	Display card status

Channel parameters control and display (below is for channel 1):

Name	Type	DTYP	Description
$(user):$(card):ao1:frequency0	ao	asynFloat64	Set frequency 0
$(user):$(card):ao1:frequency1	ao	asynFloat64	Set frequency 1
$(user):$(card):ao1:phase0	ao	asynFloat64	Set phase 0
$(user):$(card):ao1:phase1	ao	asynFloat64	Set phase 1
$(user):$(card):mbbo1:amplitude	mbbo	asynUInt32Digital	Set amplitude
$(user):$(card):mbbi1:amplitude	mbbi	asynUInt32Digital	Display amplitude
$(user):$(card):bo1:freq_select	bo	asynUInt32Digital	Set which frequency to select
$(user):$(card):bi1:freq_select	bi	asynUInt32Digital	Display selected frequency
$(user):$(card):bo1:phase_select	bo	asynUInt32Digital	Set which phase to select
$(user):$(card):bi1:phase_select	bi	asynUInt32Digital	Display selected phase

Display Overview

The display shows how to control and display the status of one card, how to control and display parameters of all the 8 channels of the card.

You can set different frequency, phase register and output voltage level for different channels. You can reset the card or enable or disable the card.

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License Agreement

Copyright (c) 2002 University of Chicago All rights reserved.
pas9782 is distributed subject to the following license conditions:
 
SOFTWARE LICENSE AGREEMENT
Software: pas9782
 
 1. The "Software", below, refers to pas9782 (in either source code, or
 binary form and accompanying documentation). Each licensee is
 addressed as "you" or "Licensee."
 
 2. The copyright holders shown above and their third-party licensors
 hereby grant Licensee a royalty-free nonexclusive license, subject to
 the limitations stated herein and U.S. Government license rights.
 
 3. You may modify and make a copy or copies of the Software for use
 within your organization, if you meet the following conditions:
 a. Copies in source code must include the copyright notice and this
 Software License Agreement.
 b. Copies in binary form must include the copyright notice and this
 Software License Agreement in the documentation and/or other
 materials provided with the copy.
 
 4. You may modify a copy or copies of the Software or any portion of it,
 thus forming a work based on the Software, and distribute copies of
 such work outside your organization, if you meet all of the following
 conditions:
 a. Copies in source code must include the copyright notice and this
 Software License Agreement;
 b. Copies in binary form must include the copyright notice and this
 Software License Agreement in the documentation and/or other
 materials provided with the copy;
 c. Modified copies and works based on the Software must carry
 prominent notices stating that you changed specified portions of
 the Software.
 
 5. Portions of the Software resulted from work developed under a U.S.
 Government contract and are subject to the following license: the
 Government is granted for itself and others acting on its behalf a
 paid-up, nonexclusive, irrevocable worldwide license in this computer
 software to reproduce, prepare derivative works, and perform publicly
 and display publicly.
 
 6. WARRANTY DISCLAIMER. THE SOFTWARE IS SUPPLIED "AS IS" WITHOUT WARRANTY
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 EMPLOYEES: (1) DISCLAIM ANY WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
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 OR THAT ANY ERRORS WILL BE CORRECTED.
 
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