DSP-200-300 operator`s manual
Contents
1. counterparts Example DEVICE x path DSP200 SYS COM3 S1 COM8 82 HS DTR Always configure a DSP 200 in socket 1 as COM3 and COM4 and a DSP 200 in socket 2 as COM8 and COM9 In addition connect RTS and CTS to AUXOUT and AUXIN respectively on all ports and use the DTR signal to enable the transmit outputs of all ports 4 2 Monitoring The Status Of PCMCIA Cards OS 2 Warp provides a utility called Plug and Play for PCMCIA that can be used to monitor the status of each PCMCIA socket In OS 2 version 2 1 this utility is called Configuration Manager When a DSP 200 300 is inserted the Card Type for the appropriate socket will display Multi Function If the card is successfully configured the Card Status will display Ready If the card cannot be configured the Card Status will be Not Ready You can view the resources claimed by a configured card by double clicking on that card s line in the window Card lupe Lard dtatus Finpty Fraptiy O ee o Figure 7 OS 2 Plug and Play GUI with properly configured DSP 200 DSP 200 300 User s Manual 4 6 5 Hardware Information 5 1 I O Addressing Modes The DSP 200 300 s two asynchronous serial ports are implemented using 2 standard 16C550 UARTs Each of these UARTs requires 8 bytes of I O space The DSP 200 300 s serial ports are addressable in two modes 1 Block Mode The two serial ports are configured in one 16 byte continuous block of I O address space The bloc2. 6 1 This page intentionally left blank DSP 200 300 User s Manual 6 2 7 Specifications Bus Interface Physical Dimensions Maximum Baud Rate Power Requirements Connector 7 1 PCMCIA PC Card Standard 2 1 compliant Type II PCMCIA card 5mm 120K 5 volts 35 85 mA typical 45 87 mA maximum Adapter to 2 standard female D 9
3. Indicates COM mode addressing Addresses 3F8 3E8 are the standard addresses for COM1 COM3 Addresses 2F8 2E8 are the standard addresses for COM2 COM4 All other basic configurations use block mode addressing at non standard base addresses Windows 95 enumerates any COM port at a non standard address starting with COM5 DSP 200 300 User s Manual 3 7 6 Select a Basic Configurations that displays No conflicts in the bottom display region titled Conflicting Device List from the drop down list Some applications may not be able to access ports higher than COM4 To use the DSP 200 300 PCMCIA serial ports with these applications you might be forced to remove other serial communications devices from your system DSP 200 300 2 RS 422 485 Serial Ports Properties AEG General Resources DSP 200 300 2 RS 422 485 Serial Ports Resource settings Resource type Setting Antata O29 O2FF Input Output Range O2E8 02EF Interrupt Request 10 Setting based on Basic configuration 0006 Change Setting Use automatic setings Conflicting device list Figure 6 Windows 95 Resource Allocation 7 Windows 95 should have chosen an available Interrupt Request setting automatically when the I O address range was configured by a Basic Configuration selection This default Interrupt Request setting should not need changed as long as No conflicts is displayed in the bottom dis
4. Interfaces to PCMCIA Card and Socket Services software PCMCIA host adapter independent Interfaces directly to Intel 82365SL and other PCIC compatible PCMCIA host adapters Allows automatic configuration of DSP 200 300 adapters upon insertion Hot Swapping Does not support automatic configuration of DSP 200 300 adapters upon insertion Hot Swapping Requires PCMCIA Card and Socket Does not require PCMCIA Card and Socket Services software Services software not from Omega Figure 1 Client Driver versus Enabler for DOS Windows 3 x Card and Socket Services software is commercially available from several vendors for most desktop and laptop PCs If you are unsure whether Card and Socket Services software is currently installed on your system install the DSP 200 300 Client Driver as discussed in following section When loaded the Client Driver will display an error message if Card and Socket Services software is not detected DSP 200 300 User s Manual 2 1 2 1 DSP 200 300 Client Driver for DOS In order to use the DSP 200 300 Client Driver the system must be configured with Card and Socket Services software Card and Socket Services software is not provided with the DSP 200 300 but is not available from Omega IMPORTANT Some versions of Card and Socket Services dated before 1993 do not support general purpose I O cards If after careful installation of the Client Driver the DSP 200
5. configure the adapter This Enabler DSP200EN EXE will operate on any DOS system using an Intel 82365SL or PCIC compatible PCMCIA host adapter including the Cirrus Logic CL PD6710 6720 the VLSI VL82C146 and the Vadem VG 365 among others IMPORTANT In order to use the DSP 200 300 Enabler for DOS the system MUST NOT be configured with Card and Socket Services software If a Card and Socket Services software is installed the DSP 200 300 Enabler may interfere with its operation and with the device s it controls The DSP 200 300 Enabler does not support automatic configuration of adapters upon insertion more commonly referred to as Hot Swapping This means the adapter must be installed in one of the system s PCMCIA sockets before executing DSP200EN EXE If more than one adapter is installed in a system the Enabler must be executed separately for each adapter Furthermore DSP200EN EXE should be executed to release the resources used by the adapter before it is removed from the PCMCIA socket Since PCMCIA adapters do not retain their configuration after removal any adapter that is removed from the system must be reconfigured with the Enabler after re inserting it into a PCMCIA socket IMPORTANT The Enabler requires a region of high DOS memory when configuring a DSP 200 300 This region is 1000H bytes 4KB long and by default begins at address DOOOOH the default address may be changed using the W option If a m
6. or no additional interrupts will be received If an application requires the UARTs Scratchpad Registers the interrupt status register can be disabled Disabling the interrupt status register is supported by the DSP 200 configuration software which is operating system dependent Refer to the relevant operating system installation section for specific usage of this feature 5 3 Auxiliary Channel Configuration An auxiliary channel is provided which allows for handshaking between a DSP 200 300 RS 422 485 port and a peripheral device This auxiliary channel may be configured in one of two ways v RTS CTS handshake enabled v handshaking is disabled Port A and Port B must both be configured in the same manner 5 3 1 Auxiliary Channel RTS CTS Handshaking The RTS CTS handshake may be enabled so that RTS request to send is the auxiliary output signal on AUX OUT pin 1 and AUX OUT pin 6 Similarly CTS clear to send is the auxiliary input signal on AUX IN pin 5 and AUX IN pin 9 This configuration is shown below i RS 422 485 Drivers Receivers 16C550 UART DATA OUT DATA IN AUX OUT Figure 10 Auxiliary Channel RTS CTS Handshaking DSP 200 300 User s Manual 5 2 5 3 2 Auxiliary Channel Handshaking Disabled The DSP 200 300 RS 422 485 ports may be configured so that the RTS CTS handshake is disabled This is the default configuration In this configuration RTS and CTS f
7. 16C550 Aux Out Full Duplex RS 422 485 Driver NOTE One of these three options must be selected via software configuration Full duplex operation is the default mode Figure 13 RS 422 485 Driver Enable Options If RTS is selected as the signal to enable the output drivers setting bit 1 of the Modem Control Register to logic 1 will enable the output drivers and clearing bit 1 of the Modem Control Register to logic 0 will force the outputs into a high impedance state Similarly if DTR is chosen as the signal to enable the output drivers setting bit 0 of the Modem Control Register to logic 1 will enable the output drivers and clearing bit 0 of the Modem Control Register to logic 0 will force the outputs into a high impedance state Selection of half duplex mode operation is dependent upon the configuration software and or the operating system used Each of these 5 5 however ultimately control the half duplex mode by accessing the PCMCIA Configuration Register on the DSP 200 300 CAUTION When operating in half duplex mode the transmitter output drivers must be disabled before receiving and information Failure to do so will result in two output drivers being connected together which may cause damage to the adapter the computer and or the peripheral equipment 5 6 PCMCIA Configuration Register Some PCMCIA software utilities allow the PCMCIA Configuration Option R
8. PCMCIA socket the client driver will configure the card as a series of COM ports starting with the lowest available port number in the list IMPORTANT If the user specified resources are in use by other devices in the system the DSP 200 300 will not be configured 4 1 2 1 Example 1 DEVICE C DSP 200 DSP200 SYS 3 100 5 In example 1 the Client Driver will attempt to configure the DSP 200 300 as COM3 and COM4 using I O addresses 100 10F hex and IRQ 5 If 4 3 COMS or COM4 already exists or if the I O address or IRQ resources are already in use the DSP 200 300 will not be configured Furthermore only one DSP 200 300 can be installed in this system 4 1 2 2 Example 2 DEVICE C DSP 200 DSP200 SYS 7 120 15 3 300 4 In example 2 the Client Driver will attempt to configure the DSP 200 300 as COM3 COM4 using I O address 300 30F hex and IRQ 4 If COM3 or COM4 already exists or if the I O address or IRQ resources are already in use the Client Driver will attempt to configure the DSP 200 300 as COM7 and COM8 using I O address 120 12F hex and IRQ 15 If COM7 or COM68 already exists or if the I O address or IRQ resources are already in use the DSP 200 300 will not be configured Up to two DSP 200 300s can be installed in this system 4 1 3 Advanced Configuration Topics For some applications it may be desirable to specify the resources for one DSP 200 300 while allowing the OS 2 Plug and Play system to assign th
9. panel or click the My Computer icon on the Win95 desktop with the right mouse button and select Properties from the pull down menu Consult Windows 95 on line help for details on the use of the Device Manager Windows 95 handles the DSP 200 300 as a parent child device v The DSP 200 300 is the parent device and is listed under the hardware class Multi function Adapters in the device manager v Each serial port is a child device of the parent device DSP 200 300 There are 2 child COM ports for the DSP 200 300 which are listed under the hardware class Ports Com amp LPT 3 2 1 Viewing Resource Settings with Device Manager 1 Start the Windows 95 Device Manager 2 Double click on the hardware class Multi function Adapters to list hardware devices in the class 3 The DSP 200 300 parent device belongs to this hardware class The device name for the DSP 200 300 is Omega DSP 200 300 2 RS 422 RS 485 Serial Ports see Figure 4 Windows 95 Device Manager 4 Open the Properties dialog for the DSP 200 300 device then click the Resources tab to view the Input Output Range and Interrupt Request resource allocations Examine and remember the Input Output Range then close the properties window 5 Double click the hardware class Ports Com and LPT Two of the Logical COM Ports COM2 COM4 etc listed in this class are the child devices of the DSP 200 300 parent device 6 View the Properties dialog for each C
10. reboot the system again If the Client Driver reports Card and Socket Services not found a version of Card and Socket Services must be installed on the system or the DSP 200 300 Enabler program must be used to configure the adapter If the Client Driver reports the desired adapter configuration the installation process is complete and the DSP 200 300 may be removed and or inserted from the system as desired On each insertion into the PCMCIA socket the DSP 200 300 will be automatically reconfigured according to the command line options 2 1 2 Command Line Options The DSP 200 300 Client Driver accepts up to eight command line arguments from the user to determine the configuration of the DSP 200 300 If any arguments are provided the Client Driver will attempt to configure any DSP 200 300s with the options specified in the order they are entered on the command line Each argument must be enclosed in parenthesis and must be separated from other arguments by a space on the command line Within each argument any or all of the following parameters may be specified using a comma no spaces to separate each parameter Baddress specifies a block mode base I O address of the DSP 200 300 in hexadecimal This address must reside on an even 16 byte 10H boundary This option must be omitted if using the Dmode option If both the Dmode and Baddress options are omitted a block mode base address will be assigned by Card and Socket Servi
11. 005 3F8 3E8 Enabled RTS Controlled 0006 2F8 2E8 Disabled Always Enabled 0007 2F8 2E8 Enabled Always Enabled 0008 2F8 2E8 Disabled DTR Controlled 0009 2F8 2E8 Enabled DTR Controlled 000A 2F8 2E8 Disabled RTS Controlled 000B 2F8 2E8 Enabled RTS Controlled 000C 110 118 Disabled Always Enabled 000D 110 118 Enabled Always Enabled 000E 110 118 Disabled DTR Controlled OOOF 110 118 Enabled DTR Controlled 0010 110 118 Disabled RTS Controlled 0011 110 118 Enabled RTS Controlled 0012 120 128 Disabled Always Enabled 0013 120 128 Enabled Always Enabled 0014 120 128 Disabled DTR Controlled 0015 120 128 Enabled DTR Controlled 0016 120 128 Disabled RTS Controlled 0017 120 128 Enabled RTS Controlled 0018 290 298 Disabled Always Enabled 0019 290 298 Enabled Always Enabled 001A 290 298 Disabled DTR Controlled 001B 290 298 Enabled DTR Controlled 001C 290 298 Disabled RTS Controlled 001D 290 298 Enabled RTS Controlled 001E 340 348 Disabled Always Enabled 001F 340 348 Enabled Always Enabled 0020 340 348 Disabled DTR Controlled 0021 340 348 Enabled DTR Controlled 0022 340 348 Disabled RTS Controlled 0023 340 348 Enabled RTS Controlled 0024 350 358 Disabled Always Enabled 0025 350 358 Enabled Always Enabled 0026 350 358 Disabled DTR Controlled 0027 350 358 Enabled DTR Controlled 0028 350 358 Disabled RTS Controlled 0029 350 358 Enabled RTS Controlled Figure 5 DSP 200 300 Basic Configuration Table
12. 300 does not configure or operate properly an updated version of Card and Socket Services may be required 2 1 1 Client Driver Installation The following procedure is used to install the DSP 200 300 Client Driver 1 Copy the file DSP200CL SYS from the DSP 200 300 distribution diskette onto the system s hard drive Using an ASCII text editor open the system s CONFIG SYS file located in the root directory of the boot drive Locate the line s in the CONFIG SYS file where the Card and Socket Services software is installed AFTER the line s installing the Card and Socket Services software add the following line to the CONFIG SYS file DEVICE drive path DSP200CL SYS _ options where options are the DSP 200 300 Client Driver command line options discussed on the following pages Save the CONFIG SYS file and exit the text editor Insert the DSP 200 300 into one of the system s PCMCIA slots NOTE Since the DSP 200 300 Client Driver supports Hot Swapping it is not necessary to have the DSP 200 300 installed when booting the system By inserting the card before booting however the Client Driver will report the adapter configuration during the boot process thereby verifying the changes made to the CONFIG SYS 7 Reboot the system and note the message displayed when the DSP 200 300 Client Driver is loaded If the Client Driver reports an invalid command line option correct the entry in the CONFIG SYS file and
13. OM port and examine the Resources allocated to each port Inside the Resource allocation window two of the COM ports will identify the Omega DSP 200 300 2 RS 422 RS 485 Serial Ports as the parent device The Input Output Range and Interrupt Request resource allocations for these two COM ports will also match the resource allocations of the DSP 200 300 parent device 7 Use the COM Port device names COM2 COM4 etc to access any of the particular serial ports on the DSP 200 300 This name is required by a Windows 95 application when accessing a particular port DSP 200 300 User s Manual 3 3 System Properties RIES General Device Manager Hardware Profiles Performance View devices by type C View devices by connection 3 Floppy disk controllers S Hard disk controllers E Keyboard Modem Monitor A Mouse lt Q Multi function adapters gt DSP 200 300 2AS 422 485 Serial Ports E Network adapters Q PCMCIA socket oY Ports COM amp LPT Communications Port COM1 F Communications PorH EBk nner ne mt a F Communications Port COM 4 amp SCSI controllers fl System devices hd Properties Refresh Remove Print Je ep Lee Figure 4 Windows 95 Device Manager 3 2 2 Changing Resource Settings with Device Manager 1 2 Start the Windows 95 Device Manager Double click on the hardware class Multi funct
14. P 200 300 s interrupt status register is enabled and the UARTs Scratchpad registers are disabled 2 1 2 1 Example 1 DEVICE C DSP 200 DSP200CL SYS In example 1 no command line arguments are specified The Client Driver will configure a DSP 200 300 inserted into any socket in block mode with a base address and IRQ assigned by Card and Socket Services The DSP 200 300 s interrupt status register will be enabled the RS 422 485 output drivers for both ports will always be enabled and RTS CTS modem control handshaking will be disabled 2 1 2 2 Example 2 DEVICE C DSP 200 DSP200CL SYS d1 In example 2 a single command line argument is provided The Client Driver will attempt to configure a DSP 200 300 inserted into any socket in COM mode at COM1 COMS and an IRQ assigned by Card and Socket Services If address COM1 3F8 or COM3 3E8 are unavailable the DSP 200 300 will not be configured If the Client Driver can successfully configure the DSP 200 300 its interrupt status register will be enabled the RS 422 485 output drivers for both ports will always be enabled and RTS CTS modem control handshaking will be disabled DSP 200 300 User s Manual 2 5 2 1 2 3 Example 3 DEVICE C DSP 200 DSP200CL SYS s0 b300 i5 02 In example 3 a single command line argument is provided The Client Driver will attempt to configure a DSP 200 300 inserted into socket 0 with a base address of 300H and IRQ 5 If address 300H
15. S Controlled RTS Controlled 04 DTR Controlled DTR Controlled Figure 3 DOS Enabler Output Enable Options H instructs the enabler to enable the RTS CTS modem control handshake for both Port A and Port B When modem control handshaking in enabled the 16C550 UART s RTS and CTS signals are connected to the RS 422 485 auxiliary channel The auxiliary channel may then be used for handshaking between a DSP 200 300 RS 422 485 port and a peripheral device When modem control handshaking is disabled the RTS and CTS signals from the 16C550 UART are looped back to each other Port A and Port B must both be configured in the same manner If this option is omitted the default setting is RTS CTS modem control handshake disabled See the Hardware Information section for more information U instructs the Enabler to disable the DSP 200 300 s interrupt status register and enable the Scratchpad registers of the individual UARTs This option is only required in very rare cases where an application program requires access to the UART s Scratchpad register If this option is omitted the DSP 200 300 s interrupt status register is enabled and the UARTs Scratchpad registers are disabled Before removing a DSP 200 300 from its PCMCIA socket the Enabler should be executed to free the system resources allocated when the card was installed For this operation the Enabler provides on additional command line option R instructs the enabler to release
16. Table of Contents 1 Introduction 0555 48 heed oe 68 eG Beh REESE OW eon ean 3 1 1 2 DOS Windows 3 x Installation 2 1 2 1 DSP 200 300 Client Driver for DOS 0040 2 2 2 1 1 Client Driver Installation 0 0 0 0 ce eee 2 2 2 1 2 Command Line Options acasw5 65 sea eee cet e arte 2 3 2 1 3 Common Problems sei fed te koh ohts eek ace Be hed ree 2 8 2 2 DSP 200 300 Enabler for DOS 0 00005 2 9 2 2 1 Command Line Options 0s sissy Bas Sane ha Ge aes eds 2 10 2 22 COMMON Problems wivin dah 255 bee ee eh ee PR ee 2 14 3 Windows 95 Installation 00 0 0 3 1 3 1 Installing a DSP 200 300 Under Windows 95 3 1 3 2 DSP 200 300 Resource Settings in Windows 95 3 2 3 2 1 Viewing Resource Settings with Device Manager 3 3 3 2 2 Changing Resource Settings with Device Manager 3 4 4 OS 2 Installation 6 236 aeieso care oe amp 1G be haar piel bes 4 1 4 1 Command Line Options js sa evsaee by ness alae se es 4 2 4 1 1 Configuring With System Assigned Resources 4 2 4 1 2 Configuring With User Assigned Resources 4 3 4 1 3 Advanced Configuration Topics 005 4 4 Ai licd CS WOUS 4 i snd dod yh cde laa ade a chide ind Ro deeded EE ds topo 4 5 4 1 5 Using Multiple Options 4es ecsvswareceusoreveawads 4 5 4 1 6 Applying Options to All The DSP 200 300 Cards 5 6 4 2 M
17. ata terminal ready signals Both RTS and DTR are controlled through the Modem Control Register of the 16550 See the Hardware Information section for more information Option Port A Output Driver Port B Output Driver o0 Always Enabled Always Enabled ol RTS Controlled Always Enabled 02 DTR Controlled Always Enabled 03 RTS Controlled RTS Controlled 04 DTR Controlled DTR Controlled Figure 2 DOS Client Output Enable Options instructs the client driver to enable the RTS CTS modem control handshake for both Port A and Port B When modem control handshaking in enabled the 16C550 UART s RTS and CTS signals are connected to the RS 422 485 auxiliary channel The auxiliary channel may then be used for handshaking between a DSP 200 300 RS 422 485 port and a peripheral device When modem control handshaking is disabled the RTS and CTS signals from the 16C550 UART are looped back to each other Port A and Port B must both be configured in the same manner If this option is omitted the default setting is RTS CTS modem control handshake disabled See the Hardware Information section for more information 2 4 U instructs the Client Driver to disable the DSP 200 300 s interrupt status register and enable the Scratchpad registers of the individual UARTs This option is only required in very rare cases where an application program requires access to the UART s Scratchpad register If this option is omitted the DS
18. ces Dmode specifies a COM mode base I O address configuration for the DSP 200 300 The D1 option configures the DSP 200 300 at COM1 COMS 3F8 3E8 and the D2 option configures the DSP 200 300 at COM2 COM4 2F8 2E8 This option must be omitted if using the Baddress option If both the Dmode and Baddress options are omitted a block mode base address will be assigned by Card and Socket Services DSP 200 300 User s Manual 2 3 lirg Ssocket Odriver specifies the interrupt level IRQ of the DSP 200 300 in decimal irq must be one of the following values 3 4 5 7 9 10 11 12 14 15 or 0 if no IRQ is desired If this option is omitted an interrupt level will be assigned by Card and Socket Services specifies which PCMCIA socket the DSP 200 300 must be inserted into for this configuration argument to be used socket must be in the range 0 15 If this option is omitted the configuration argument will apply to DSP 200 300s inserted into any socket specifies RS 422 485 output driver enable option for the DSP 200 300 ports The DSP 200 300 s ports may be configured for either full duplex or half duplex operation with this option If this option is omitted the default setting is the RS 422 485 ports are configured for full duplex operation with the RS 422 485 output drivers always enabled In half duplex mode the RS 422 485 transmitter may be enabled and disabled via the RTS request to send or DTR d
19. d in the following sections 4 1 1 Configuring With System Assigned Resources Allowing the OS 2 Plug and Play system to assign the hardware resources to the DSP 200 300 is the ideal choice when only OS 2 programs will access the serial ports When configuring the hardware the user simply specifies a list of COM port numbers When a DSP 200 300 is inserted into a PCMCIA socket the client driver will configure the card as a series of COM ports starting with the lowest available port number in the list Configuring a DSP 200 300 with system assigned resources can be a problem however if DOS and or Windows applications will be accessing the serial ports This is because most DOS applications write directly to the communications hardware and the Windows Control Panel also wants to know the hardware configuration of the serial ports In these cases the user may want to configure the DSP 200 300 with user assigned resources 4 1 1 1 Example 1 DEVICE C DSP 200 DSP200 SYS COM3 In example 1 the Client Driver will attempt to configure the DSP 200 300 as COM3 and COM4 If COM3 or COM 4 already exists in the system the DSP 200 300 will not be configured Furthermore only one DSP 200 300 can be installed in this system 4 1 1 2 Example 2 DEVICE C DSP 200 DSP200 SYS COM7 COM3 In example 2 the Client Driver will attempt to configure the DSP 200 300 as COM3 and COM4 If COM3 or COM4 already exists in the system the Client Driver
20. e hardware resources for any additional cards This can be accomplished by mixing the configuration methods on the DSP 200 300 Client Driver command line DEVICE C DSP 200 DSP200 SYS 3 100 5 COM7 It is important to remember that when a DSP 200 300 is inserted into a PCMCIA socket the client driver will configure the card as a series of COM ports starting with the lowest available port number in the list Another common application requirement is to have a DSP 200 300 inserted into socket 1 be configured as COM3 and COM4 while a DSP 200 300 inserted into socket 2 be configured as COM7 and COM8 This type of configuration is supported by appending a Sx parameter after any command line argument DEVICE C DSP 200 DSP200 SYS COM3 S1 COM7 S2 DEVICE C DSP 200 DSP200 SYS 3 100 4 S1 7 300 3 S2 DSP 200 300 User s Manual 4 4 4 1 4 Options The client driver supports the DSP 200 300 s hardware configuration options It also allows a configuration to be tied to a particular socket These options are specified on the DEVICE statement line in CONFIG SYS HS Example DTR Example RTS Example BON Example enables RTS CTS Hardware Handshake The RTS signal will be connected to AUXOUT and the CTS signal will be connected to AUXIN This allows RTS CTS hardware flow control to be used If this option is omitted the default setting is RTS CTS hardware handshaking is disabled When modem control hands
21. egister to be examined The PCMCIA Configuration Option Register of the DSP 200 300 is defined as follows DESCRIPTION 7 SRESET Setting this bit to a 1 resets all bits in the CIS except for this bit This bit must be reset to 0 to allow operation of the card LevIREQ 1 Level Mode IRQ 0 Pulse Mode IRQ 500 ns 5 ModemCntrl 1 RTS CTS handshake 0 RTS CTS loopback This applies to both Port A and Port B 4 3 OutputEnA 00 Outputs always enabled Memory Mode Port A 01 DTR used as output enable 10 RTS used as output enable 11 Outputs always enabled I O Mode 2 OutputEnB 0 Port B outputs always enabled port B 1 Port B output enable same as Port A 1 ScratchEn 1 Scratchpad Registers Enabled and Interrupt Status Register Disabled 0 Scratchpad Registers Disabled and Interrupt Status Register Enabled ConfigMode 1 COM mode 0 block mode Figure 14 PCMCIA Configuration Options Register DSP 200 300 User s Manual 5 6 6 External Connections An adapter cable is included with the DSP 200 300 to convert the 25 pin output connector into 2 standard D 9 female connectors data terminal equipment DTE as shown in the figure below Port A Port B Figure 15 DSP 200 300 Adapter Cable PIN FUNCTION AUXOUT DATAOUT GND DATAIN AUXIN AUXOUT DATAOUT DATAIN AUXIN OP OINI DAD OF AIN eR Figure 16 D 9 Female Signal Assignment
22. emory manager such as EMM386 QEMM or 386Max is installed on the system this region of DOS memory must be excluded from the memory manager s control Consult the documentation provided with the memory manager software for instructions on how to exclude this memory region DSP 200 300 User s Manual 2 9 2 2 1 Command Line Options To configure a DSP 200 300 in the system the Enabler requires one command line argument from the user to determine the configuration of the card This argument must be enclosed in parenthesis and within the argument any or all of the following parameters may be specified using a comma no spaces to separate each parameter Ssocket Baddress Dmode lirg Waddress Odriver specifies which PCMCIA socket the DSP 200 300 must be inserted into for this configuration argument to be used socket must be in the range 0 15 This option is always required specifies a block mode base I O address of the DSP 200 300 in hexadecimal This address must reside on an even 16 byte 10H boundary Specify only one of the following three options Baddress Dmode or R Use of one of theses options is always required specifies a COM mode base I O address configuration for the DSP 200 300 The D1 option configures the DSP 200 300 at COM1 COMS 3F8 3E8 and the D2 option configures the DSP 200 300 at COM2 COM4 2F8 2E8 Specify only one of the following t
23. haking is disabled the RTS and CTS signals from the 16C550 UART are looped back to each other DEVICE x path DSP200 SYS 3 110 4 HS use DTR to enable outputs on Port A Outputs are enabled when the DTR signal is not active This allows half duplex communication By default the outputs on port A are always enabled DEVICE x path DSP200 SY5 15 110 5 DTR use RTS to enable outputs on Port A Outputs are enabled when the RTS signal is active This allows half duplex communication By default the outputs on port A are always enabled DEVICE x path DSP200 SYS COM17 DTR Port B outputs always enabled By default the outputs on port B obey the same control as port A This option forces the port B outputs to always be active regardless of the state of Port A DEVICE x path DSP200 SYS COM17 BON 4 1 5 Using Multiple Options Multiple options on a configuration can be used simply by stacking the options together Example On COM3 and COM4 use RTS CTS flow control and enable the transmitter outputs with the DTR signal For COM5 and COM6 leave RTS and CTS in loopback and leave the outputs enabled all the time DEVICE x path DSP200 SYS COM3 DTR HS COM5 4 1 6 Applying Options to All The DSP 200 300 Cards All options except socket designation can also be applied globally to all DSP 200s Replace the option with a and place the option by itself on the command line These options will override their
24. his configuration file supports the DSP 200 300 in both addressing modes block mode and com mode Additionally the RTS CTS modem control handshake option and the RS 422 485 output driver enable option for full and half duplex operation is supported 3 1 Installing a DSP 200 300 Under Windows 95 1 Insert the DSP 200 300 into any available PC Card socket 2 The first time a new PC Card type is installed the New Hardware Found window opens After this first installation Windows 95 will automatically detect and configure the card If the New Hardware Found window does not open then skip to the next section DSP 200 300 Resource Settings 3 The New Hardware Found window provides several options to configure the DSP 200 300 card Click the Driver from Disk option button Click OK to continue 4 An Install from Disk dialog box should appear Insert the diskette with the DSP2_300 INF file select the correct drive letter and path and click OK Windows 95 will browse the path for the aforementioned files 5 During the installation process it may be required to supply the computer with the Windows 95 CD or installation diskettes The DSP 200 300 S serial devices will require the file SERIALUI DLL Insert the CD or diskette and click OK IMPORTANT NOTE If the user already has these files installed on the computer or if the installation disks are unavailable it may not be necessary to supply the computer
25. hree options Baddress Dmode or R Use of one of theses options is always required specifies the interrupt level IRQ of the DSP 200 300 in decimal irq must be one of the following values 3 4 5 7 9 10 11 12 14 15 or 0 if no IRQ is desired This option is required if the R option is not used specifies the base address of the memory window required to configure the DSP 200 300 Set address DO for a memory window at segment D000 address D8 for a memory window at segment D800 etc Valid settings for address are C8 CC DO D4 D8 and DC If this option is omitted a memory window at segment D000 will be used specifies RS 422 485 output driver enable option for the DSP 200 300 ports The DSP 200 300 s ports may be configured for either full duplex or half duplex operation with this option If this option is omitted the default setting is the RS 422 485 ports are configured for full duplex operation with the RS 422 485 output drivers always enabled In half duplex mode the RS 422 485 transmitter may be enabled and 2 10 disabled via the RTS request to send or DTR data terminal ready signals Both RTS and DTR are controlled through the Modem Control Register of the 16550 See the Hardware Information section for more information Option Port A Output Driver Port B Output Driver o0 Always Enabled Always Enabled ol RTS Controlled Always Enabled 02 DTR Controlled Always Enabled 03 RT
26. ion Adapters to list hardware devices in the class The DSP 200 300 parent device belongs to this hardware class The device name for the DSP 200 300 is Omega DSP 200 300 2 RS 422 RS 485 Serial Ports Open the Properties dialog for the DSP 200 300 device then click the Resources tab to view the Input Output Range and Interrupt Request resource allocations see Figure 6 Windows 95 Resource Allocation 3 4 5 Several predefined Basic Configurations have been included for the DSP 200 300 see Figure 5 DSP 200 300 Basic Configuration Table The Basic Configurations provide many combinations of the operating modes and options listed below See the Hardware Information section of this manual for complete descriptions v I O address range and mode The DSP 200 300 is addressable in two modes block mode and COM mode When the DSP 200 300 is configured in COM mode standard addresses for either COM1 COMS3 or COM2 COM4 will be used Addresses 3F8 3E8 are the standard addresses for COM1 COMS3 and addresses 2F8 2E8 are the standard addresses for COM2 COM4 Some older applications are limited to using COM ports 1 4 in which case COM mode addressing is necessary When the DSP 200 300 is configured in block mode non standard base addresses are used Windows 95 enumerates any COM port at a non standard address starting with COM5 v RTS CTS modem control handshaking When modem control handshaking is e
27. k must begin on an even 16 byte 10H boundary e g 300H 310H 320H etc DSP 200 300 RS 232 Address assignment channel Channel A Base Address 0 Channel B Base Address 8 Figure 8 Block Mode Addressing 2 COM Mode The two serial ports are configured at the standard COM port I O address locations The ports may be configured as COM1 and COM3 or as COM2 and COM4 5 2 Scratchpad Register Each 16C550 UART contains 8 I O registers The last of these registers located at Base address 7 is referred to as the Scratchpad Register and provides no functionality to the UART In place of this Scratchpad Register the DSP 200 300 implements an interrupt status register which can be accessed at Base address 7 of any UART D7 D6 D5 D4 D3 D2 D1 DO 0 0 0 0 0 0 Intr B Intr A Figure 9 Interrupt Status Register When one or more UARTs have interrupts pending the associated bit s in the interrupt status register are set to logic 1 When all the pending interrupts have been serviced for a specific UART its interrupt status bit will be cleared to logic 0 automatically When all the pending interrupts from all UARTs have been serviced the entire interrupt status register will return logic 0 The application program should not exit its interrupt service routine until all pending interrupts from all channels have been 5 1 serviced interrupt status register 0
28. ll proceed to the second command line argument and attempt to configure the card with a base address assigned by Card and Socket Services and IRQ 10 If IRQ 10 is also unavailable the Client Driver will proceed to the third command line argument and attempt to configure the DSP 200 300 with a base address and an IRQ assigned by Card and Socket Services If the Client Driver can 2 6 successfully configure the DSP 200 300 its interrupt status register will be enabled the RS 422 485 output drivers for both ports will always be enabled and RTS CTS modem control handshaking will be disabled 2 1 2 6 Example 6 DEVICE C DSP 200 DSP200CL SYS b300 i5 i10 In example 6 the three command line arguments of example 5 have been rearranged The Client Driver will first attempt to configure a DSP 200 300 inserted into any socket with a base address of 300H and IRQ 5 If address 300H or IRQ 5 is unavailable the Client Driver will proceed to the second command line argument and attempt to configure the card with a base address and IRQ assigned by Card and Socket Services Since the second command line argument includes all available address and IRQ resources the third command line argument will never be reached by the Client Driver It is the user s responsibility to place the command line arguments in a logical order 2 1 2 7 Example 7 DEVICE C DSP 200 DSP200CL SYS s0 b300 i5 s1 b340 i10 The type of configuration shown in exa
29. luded from the memory manager s control Consult the documentation provided with the memory manager software for instructions on how to exclude this memory region Furthermore some systems use the high memory area for BIOS shadowing to improve overall system performance In order for the Enabler to operate any BIOS shadowing must be disabled in the address range specified for the configuration window BIOS shadowing can usually be disabled through the system s CMOS setup utility Socket Numbers The Enabler requires the DSP 200 300 S socket number to be specified on the command line and the DSP 200 300 must be inserted into the socket before the Enabler is invoked Some vendors number their sockets from 1 to N while other vendors number their sockets from 0 to N 1 For the DSP 200 300 Enabler the lowest socket number in the system is designated socket 0 Card and Socket Services Software In order to use the DSP 200 300 Enabler for DOS the system MUST NOT be configured with Card and Socket Services software If a Card and Socket Services software is installed the DSP 200 300 Enabler may interfere with its operation and with the device s it controls For systems configured with Card and Socket Services the DSP 200 300 Client Driver is the recommended method of configuration 2 14 3 Windows 95 Installation To allow easy configuration of the DSP 200 300 an Windows 95 INF configuration file has been written for the hardware T
30. mple 7 may be desirable in systems where more than one DSP 200 300 is to be installed In this example the Client Driver will attempt to configure a DSP 200 300 inserted into socket 0 with a base address of 300H and IRQ 5 If the DSP 200 300 is inserted into socket 1 the Client Driver will attempt to configure it with base address 340H and IRQ 10 This allows the user to force the DSP 200 300 s address and IRQ settings to be socket specific which may simplify cable connections and software development As in the previous examples however if the requested address or interrupt resources are not available the DSP 200 300 will not be configured DSP 200 300 User s Manual 2 7 2 1 3 Common Problems Generic Client Drivers Many Card and Socket Services packages include a generic client driver or SuperClient which configures standard I O devices If one of these generic client drivers is installed it may configure the DSP 200 300 causing the DSP 200 300 client driver to fail installation In these cases the user should do one of the following 1 modify the operation of the generic client driver to disable the configuration of modem serial port cards Consult the Card and Socket Services documentation for availability and details of this feature 2 place the DSP 200 300 client driver before the generic client driver in the CONFIG SYS Available Resources One function of the Card and Socket Services software is to track which sys
31. nabled the 16C550 UART s RTS and CTS signals are connected to the RS 422 485 auxiliary channel The auxiliary channel may then be used for handshaking between a DSP 200 300 RS 422 485 port and a peripheral device When modem control handshaking is disabled the RTS and CTS signals from the 16C550 UART are looped back to each other v RS 422 485 output drivers enable option The DSP 200 300 s ports may be configured for either full duplex or half duplex operation with this option The default setting is the RS 422 485 ports are configured for full duplex operation with the RS 422 485 output drivers always enabled In half duplex mode the RS 422 485 transmitter may be enabled and disabled via the RTS request to send or DTR data terminal ready signals Both RTS and DTR are controlled through the Modem Control Register of the 16550 When the Use Automatic Settings check box is enabled Windows 95 will attempt to configure the DSP 200 300 in the order listed in the Basic Configurations table DSP 200 300 User s Manual 3 5 Basic DSP 200 300 RTS CTS RS 422 485 Configuration Port Addresses Handshaking Output Drivers 0000 3F8 3E8 Disabled Always Enabled 0001 3F8 3E8 Enabled Always Enabled 0002 3F8 3E8 Disabled DTR Controlled 0003 3F8 3E8 Enabled DTR Controlled 0004 3F8 3E8 Disabled RTS Controlled 0
32. onitoring The Status Of PCMCIA Cards 5 6 5 Hardware Information 00 0 0000 5 1 5 1 I O Addressing Modes oos lt k ous da tater ae R oun Res OARS 5 1 5 2 Sctatchpad Register ian tans A advan eas yen hwy aa wo 5 1 5 3 Auxiliary Channel Configuration 00000005 5 2 5 3 1 Auxiliary Channel RTS CTS Handshaking 5 2 5 3 2 Auxiliary Channel Handshaking Disabled 5 3 5 4 Termination Resistors 0 0 ccc eee eee 5 4 5 5 Half Duplex Operation fio 453 324 s20e349e02 ta tai eee 5 5 5 6 PCMCIA Configuration Register 0 0 00 00000 eee 6 6 6 External Connections cece eee 6 1 7 Specifications ginei a aa eikg ee ee Boake EAE hha IG 7 1 DSP 200 300 User s Manual iii Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 List of Figures Client Driver versus Enabler for DOS Windows 3 x 2 1 DOS Client Output Enable Options 2 4 DOS Enabler Output Enable Options 2 11 Windows 95 Device Manager 0 0005 3 4 DSP 200 300 Basic Configuration Table 3 6 Windows 95 Resource Allocation 3 7 OS 2 Plug and Play GUI sn gac55 fe geek eye weeks vee es 5 6 Block Mode Addressing 00 00 00 00005 5 1 Inte
33. or IRQ 5 is unavailable the DSP 200 300 will not be configured In addition if a DSP 200 300 is inserted into any other socket it will not be configured If the Client Driver can successfully configure the DSP 200 300 its interrupt status register will be enabled the port A RS 422 485 output drivers will be enabled and disabled via the DTR signal the port B RS 422 485 output drivers will always be enabled and RTS CTS modem control handshaking will be disabled 2 1 2 4 Example 4 DEVICE C DSP 200 DSP200CL SYS i5 h u b300 In example 4 a single command line argument is provided Because the parameter order is not significant the Client Driver will attempt to configure a DSP 200 300 inserted into any socket with a base address of 300H and IRQ 5 If address 300H or IRQ 5 is unavailable the DSP 200 300 will not be configured If the Client Driver can successfully configure the DSP 200 300 its interrupt status register will be disabled Scratchpad registers enabled the RS 422 485 output drivers for both ports will always be enabled and RTS CTS modem control handshaking will be enabled on each ports auxiliary channel 2 1 2 5 Example 5 DEVICE C DSP 200 DSP200CL SYS b300 i5 i10 In example 5 three command line arguments are provided The Client Driver will first attempt to configure a DSP 200 300 inserted into any socket with a base address of 300H and IRQ 5 If address 300H or IRQ 5 is unavailable the Client Driver wi
34. play region titled Conflicting Device List If you are satisfied with Windows 95 selection then skip the next step 8 To modify the Interrupt Request setting click the resource name and click the Change Setting button An Edit Resource window will open up Inside this window click on the up down arrows to the right of the Interrupt Request value This scrolls you through all of the allowable resources for your hardware Pay attention to the conflict information at the bottom of the window Do not select a value that causes a conflict with any other installed hardware 9 If any changes have been made to the DSP 200 300 s configuration the card will automatically be reconfigured to the new resources specified Any time a PCMCIA card of this type is inserted Windows 95 will attempt to configure the card at these resource settings Click the Use Automatic Settings box to reset this card type for automatic configuration DSP 200 300 User s Manual 4 OS 2 Installation In order to use the DSP 200 300 Client Driver for OS 2 the system must be configured as follows 1 The system must be running OS 2 version 2 1 or later 2 OS 2 PCMCIA Card and Socket Services support must be installed If PCMCIA support was not selected when OS 2 was installed it can be added using the Selective Install facility in the System Setup folder On OS 2 2 1 and 2 11 Socket Services must be added separately The necessary files can be found on Compuse
35. register will be enabled the RS 422 485 output drivers for both ports will always be enabled and RTS CTS modem control handshaking will be disabled 2 12 2 2 1 5 Example 5 DSP200EN EXE 03 i15 b340 s1 In example 2 the Enabler will configure the DSP 200 300 in socket 1 with a base address of 340H and IRQ 5 using a configuration memory window at segment D000 The DSP 200 300 s interrupt status register will be enabled the RS 422 485 output drivers on both ports will be enabled and disabled via the RTS signal and RTS CTS modem control handshaking will be disabled 2 2 1 6 Example 6 DSP200EN EXE s0 b300 i5 r In example 6 the Enabler will release the configuration used by the DSP 200 300 in socket 0 using a configuration memory window at segment D000 The base address and IRQ parameters are ignored and may be omitted 2 2 1 7 Example 7 DSP200EN EXE s1 r wcc In example 7 the Enabler will release the configuration used by the DSP 200 300 in socket 1 using a configuration memory window at segment CCOO DSP 200 300 User s Manual 2 13 2 2 2 Common Problems Memory Range Exclusion The Enabler requires a region of high DOS memory when configuring a DSP 200 300 This region is 1000H bytes 4KB long and by default begins at address D0000H the default address may be changed using the W option If a memory manager such as EMM386 QEMM or 386Max is installed on the system this region of DOS memory must be exc
36. rial ports are addressable in two modes 1 Block Mode The two serial ports are configured in one 16 byte continuous block of I O address space The block must begin on an even 16 byte division Both serial ports share one IRQ level 2 COM Mode The two serial ports are configured at the standard COM port I O address locations The ports may be configured as COM1 and COM3 also the ports may be configured as COM2 and COM4 Both serial ports share one IRQ level A special interrupt status register is also available to simplify the software required to service multiple serial ports in an interrupt driven environments See the Hardware Information section for details on these topics DSP 200 300 User s Manual 1 1 1 2 This page intentionally left blank 2 DOS Windows 3 x Installation Two configuration software programs are provided with the DSP 200 300 a Client Driver DSP200CL SYS and a card Enabler DSP200EN EXE Both of these programs are executed from DOS before entering Windows and allow operation of the DSP 200 300 in both the DOS and Windows 3 x environments For optimal operation however the Client Driver is the preferred method of installation and configuration The table below highlights the differences between these programs Client Driver recommended Enabler not recommended File name DSP200CL SYS File name DSP200EN EXE File type DOS device driver File type DOS executable
37. rom the 16C550 UART will be looped back to each other In addition the auxiliary output and input signals will be looped back to each other This configuration is shown below a RS 422 485 Drivers Receivers 16C550 UART DATA OUT DATA IN AUX OUT Figure 11 Auxiliary Channel Handshaking Disabled 5 4 Termination Resistors No termination resistors are provided on the DSP 200 300 RS 422 485 ports Both output and input signals are connected only to the external connector Any termination which is required must be added externally as 485 Receiver RXD RXD RS 422 485 Receiver AUXIN g AUXIN Recommended Termination Resistor Values RS 422 RS 485 100 ohm 1 2W resistor 60 ohms total resistance 120 ohms at each end Figure 12 RS 422 485 Termination DSP 200 300 User s Manual 5 4 5 5 Half Duplex Operation The DSP 200 300 s ports may be configured for either full duplex or half duplex operation By default the RS 422 485 ports are configured for full duplex operation with the RS 422 485 output drivers always enabled In half duplex mode the RS 422 485 transmitter may be enabled and disabled via the RTS request to send or DTR data terminal ready signals Both RTS and DTR are controlled through the Modem Control Register of the 16550 We Options Data Out Halt Duplex RS 422 485 ji Driver Active Low Output Enable
38. rrupt Status Register 0 0 0 0 ee ee 5 1 Auxiliary Channel RTS CTS Handshaking 5 2 Auxiliary Channel Handshaking Disabled 5 3 RS 422 485 Termination 0 0 0 00 000 5 4 RS 422 485 Driver Enable Options 5 5 PCMCIA Configuration Options Register 6 6 DSP 200 300 Adapter Cable 04 6 1 D 9 Female Signal Assignment 6 1 iii 1 Introduction The DSP 200 300 provides two independent RS 422 RS 485 asynchronous serial communications interfaces for systems equipped with PCMCIA Type II and or Type III expansion sockets The DSP 200 300 is a PCMCIA Type II 5 mm card and is PCMCIA PC Card Standard Specification 2 1 compliant The DSP 200 300 s serial ports are implemented using 16C550 Universal Asynchronous Receiver Transmitters UARTs which are the recommended communications interface for multitasking environments and with applications involving high data transfer rates The RS 422 485 serial ports may be configured to operate in either the Full Duplex or Half Duplex mode RTS or DTR may be used to enable the output drivers or the RS 422 485 serial ports may be configured so that the output drivers are always enabled Another option provided in the RS 4227 485 serial ports is an RTS CTS modem control handshake This handshake may be enabled or disabled when the DSP 200 300 is configured The DSP 200 300 s two se
39. rve in the OS2SUPPORT forum and may be available elsewhere These files are not available from Omega Engineering Inc Omega s OS 2 serial port device driver QCOM version 2 01 or later must be installed The DSP 200 300 will not operate with the standard OS 2 serial port device drivers Omega Engineering Inc can not guarantee the operation of the DSP 200 300 with any other third party device drivers for OS 2 There must be at least 16 bytes of available I O space and 1 available IRQ After the system has been configured to the above specifications the DSP 200 300 Client Driver may be installed with the following procedure 1 Copy the DSP200 SYS client driver file from the distribution disk to any convenient directory on the hard disk Open the CONFIG SYS file using any ASCII text editor Add the following line to the CONFIG SYS file DEVICE drive path DSP200 SYS options where options are the DSP 200 300 OS 2 Client Driver command line options discussed in the following sections Save the CONFIG SYS file exit the text editor shutdown the system and reboot to activate the changes 4 1 Command Line Options The DSP 200 300 Client Driver for OS 2 supports two methods of configuration using system assigned resources and using user assigned resources Both options provide full PCMCIA compliance and functionality including Hot swapping but each has some advantages and disadvantages as discusse
40. tem resources memory addresses I O addresses IRQs etc are available for assignment to inserted PCMCIA cards Sometimes however the Card Services software assumes or incorrectly determines that a particular resource is used when it is actually available Most Card and Socket Services generate a resource table in a file typically in the form of an INI file which the user can modify to adjust the available system resources Consult the Card and Socket Services documentation for availability and details of this feature Multiple Configuration Attempts Some Card and Socket Services have a setting which aborts the configuration process after a single configuration failure such as a request for an unavailable resource The user should change this setting to allow for multiple configuration attempts Consult the Card and Socket Services documentation for availability and details of this feature Older Versions of Card and Socket Services Some versions of Card and Socket Services dated before 1993 do not support general purpose I O cards If after careful installation of the Client Driver the DSP 200 300 does not configure or operate properly an updated version of Card and Socket Services may be required Card and Socket Services software is not available from Omega 2 8 2 2 DSP 200 300 Enabler for DOS For systems that are not operating PCMCIA Card and Socket Services software the DSP 200 300 DOS Enabler may be used to enable and
41. the resources previously allocated to the DSP 200 300 When the R option is used any settings specified by the B T U and E options are ignored DSP 200 300 User s Manual 2 11 2 2 1 1 Example 1 DSP200EN EXE In example 1 no command line argument is specified The Enabler will report an error and display the proper usage of the command 2 2 1 2 Example 2 DSP200EN EXE s0 b300 i5 In example 2 the Enabler will configure the DSP 200 300 in socket 0 with a base address of 300H and IRQ 5 using a configuration memory window at segment D000 The DSP 200 300 s interrupt status register will be enabled the RS 422 485 output drivers for both ports will always be enabled and RTS CTS modem control handshaking will be disabled 2 2 1 3 Example 3 DSP200EN EXE i10 h u b340 s1 In example 3 the Enabler will configure the DSP 200 300 in socket 1 with a base address of 340H and IRQ 10 using a configuration memory window at segment D000 The DSP 200 300 S interrupt status register will be disabled Scratchpad registers enabled the RS 422 485 output drivers for both ports will always be enabled and RTS CTS modem control handshaking will be enabled on each ports auxiliary channel 2 2 1 4 Example 4 DSP200EN EXE s0 b300 i3 wd8 In example 4 the Enabler will configure the DSP 200 300 in socket 0 with a base address of 300H and IRQ 3 using a configuration memory window at segment D800 The DSP 200 300 s interrupt status
42. will attempt to configure the DSP 200 300 as COM7 and COMB8 If COM7or COM8 already exist already exist in the system the DSP 200 300 User s Manual 4 2 DSP 200 300 will not be configured Up to two DSP 200 300s can be installed in this system 4 1 2 Configuring With User Assigned Resources As mentioned in the previous section allowing the OS 2 Plug and Play system to assign the hardware resources to the DSP 200 300 is ideal for OS 2 programs but can be a problem if DOS and or Windows applications will be accessing the serial ports This is because most DOS applications write directly to the communications hardware and the Windows Control Panel also wants to know the hardware configuration of the serial ports For this reason the DSP 200 300 Client Driver allows the user to request specific hardware settings using a series of command line arguments of the form port address irq port specifies the beginning COM port number address specifies the base I O address of the DSP 200 300 in hexadecimal and must reside on an even 16 byte 10H boundary irq specifies the interrupt level IRQ of the DSP 200 300 in decimal irq must be one of the following values 3 4 5 7 9 10 11 12 14 or 15 Each argument must be enclosed in parentheses and must be separated from other arguments by a space on the command line Within each argument the parameters must be separated using a comma no spaces When a DSP 200 300 is inserted into a
43. with the Windows 95 CD or installation diskettes If prompted for the disks click OK A dialog box with an option to skip will appear Click the Skip button and the files will not be installed If these files exist in the windows system directory those files will be used DSP 200 300 User s Manual 3 1 The DSP 200 300 PC Card should now be configured The default configuration for the DSP 200 300 is a base address and IRQ assigned by Windows 95 the DSP 200 300 s interrupt status register will be disabled the 16C550 UART s scratchpad registers will be enabled the RS 422 485 output drivers for both ports will always be enabled and RTS CTS modem control handshaking will be disabled In the future Windows 95 will automatically recognize and configure the DSP 200 300 in this default configuration 3 2 DSP 200 300 Resource Settings in Windows 95 Windows 95 maintains a registry of all known hardware installed within the computer Inside this hardware registry Windows 95 keeps track of all the computer s resources such as base I O addresses IRQ levels and DMA channels In the case of a PC Card PCMCIA type board Windows 95 configures the new hardware using free resources it finds within the hardware registry and updates the registry automatically To view and or edit hardware devices in Windows 95 use the system Device Manager To access Device Manager double click the System icon in the Windows 95 control
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