ASSURED SYSTEMS 104-ICOM-2S thiab 104-COM-2S Access IO Isolated Serial Card
Khoom Specifications
- Qauv: 104-ICOM-2S
- Chaw tsim tshuaj paus: ACCES I/O Products, Inc.
- Chaw Nyob: 10623 Roselle Street, San Diego, CA 92121
- Hu rau: 858-550-9559 Ib | contactus@accesio.com
- Webqhov chaw: www.accesio.com
FAQ (Cov lus nug nquag nug)
- Q: Kuv yuav ua li cas yog tias kuv ACCES I/O board ua tsis tiav?
A: Hu rau ACCES cov neeg siv khoom txhawb nqa rau kev pabcuam sai thiab kho tau lossis hloov pauv raws li kev lees paub. - Q: Kuv puas tuaj yeem nruab lub rooj tsavxwm nrog lub computer powered?
A: Tsis yog, nco ntsoov xyuas kom lub computer fais fab tuag ua ntej txuas lossis txiav cov cables lossis txhim kho cov laug cam kom tiv thaiv kev puas tsuaj.
Tshooj 1: Kev Taw Qhia
- Lub rooj sib tham sib txuas lus no yog tsim los siv rau hauv PC / 104 cov khoos phis tawj sib xws. Ob qhov chaw nres nkoj cov ntaub ntawv cais tawm tau muab rau ntawm lub rooj tsavxwm. Qauv COM-2S tsuas yog ib qho tsis cais tawm ntawm ICOM-2S.
Multipoint Opto-isolated Kev Sib Txuas Lus
Lub rooj tsavxwm tso cai rau kev sib kis ntau ntawm cov kab sib txuas ntev hauv qhov chaw nrov nrov siv RS422 lossis RS485 cov kab sib txawv tsav tsheb. Cov kab ntaub ntawv yog opto- cais tawm ntawm lub computer thiab los ntawm ib leeg kom paub meej kev sib txuas lus thaum loj hom suab nrov yog superimposed. Cov on-board DC-DC converters muab cais fais fab rau cov kab tsav tsheb.
Crystal oscillator nyob rau ntawm lub rooj tsavxwm. Qhov no oscillator tso cai xaiv cov baud tus nqi ntawm 50 txog 115,200. Baud tus nqi mus txog 460,800 baud tej zaum yuav muab raws li lub Hoobkas xaiv. Tshooj Programming ntawm phau ntawv no muaj ib lub rooj siv thaum xaiv baud tus nqi.
Cov zis transceivers siv, hom 75176B, muaj peev xwm tsav tsheb sib txuas lus ntev heev ntawm tus nqi siab baud. Lawv tuaj yeem tsav mus txog ± 60mA ntawm cov kab sib npaug thiab tau txais cov khoom siv qis li ± 200mV sib txawv teeb liab. Opto-isolators ntawm lub rooj tsavxwm muab kev tiv thaiv kom siab tshaj 500 V. Nyob rau hauv cov ntaub ntawv ntawm kev sib txuas lus tsis sib haum xeeb, lub transceivers feature thermal kaw.
COM Chaw nres nkoj Compatibility
Hom ST16C550 UARTs yog siv los ua Asynchronous Communication Element (ACE) uas suav nrog 16-byte xa / tau txais tsis muaj los tiv thaiv cov ntaub ntawv ploj hauv kev ua haujlwm ntau, thaum tuav 100 feem pua kev sib raug zoo nrog thawj IBM qhov chaw nres nkoj.
Koj tuaj yeem xaiv qhov chaw nyob nyob qhov twg hauv qhov chaw nyob I/O thaj tsam 000 txog 3E0 hex.
Hom kev sib txuas lus
Cov qauv no txhawb nqa ntau yam ntawm 2-xaim thiab 4-xaim cable sib txuas. 2 xaim lossis Ib Nrab-Duplex tso cai rau kev khiav tsheb mus rau ob qho kev qhia, tab sis tsuas yog ib qho kev taw qhia ntawm ib lub sijhawm. Hauv 4 xaim lossis Full-Duplex hom cov ntaub ntawv taug kev hauv ob qho tib si tib lub sijhawm.
Line Bias thiab Termination
Rau kev tiv thaiv lub suab nrov ntxiv, cov kab kev sib txuas lus tuaj yeem raug thauj khoom ntawm tus txais thiab ua tsis ncaj ntawm lub transmitter. RS485 kev sib txuas lus xav kom ib lub transmitter muab kev tsis ncaj ncees voltage kom paub meej tias lub xeev "zero" thaum tag nrho cov transmitters raug kaw, thiab qhov kawg receiver input ntawm txhua qhov kawg ntawm lub network raug txiav tawm kom tsis txhob "ringing". Lub rooj tsavxwm txhawb cov kev xaiv no nrog jumpers ntawm lub rooj tsavxwm. Saib Tshooj 3, Kev Xaiv Xaiv kom paub meej ntxiv.
Transceiver Control
RS485 kev sib txuas lus xav kom tus neeg tsav tsheb transmitter yuav tsum tau qhib thiab ua tsis taus raws li qhov xav tau, kom tso cai rau txhua lub rooj sib tham sib qhia cov kab sib txuas. Lub rooj tsavxwm muaj kev tswj tsis siv neeg tsav tsheb. Thaum lub rooj tsavxwm tsis kis, lub receiver yog enabled thiab tus neeg tsav tsheb transmitter yog neeg xiam. Nyob rau hauv kev tswj tsis siv neeg, thaum cov ntaub ntawv yuav tsum tau xa mus, lub receiver yog neeg xiam thiab tus neeg tsav tsheb enabled. Lub rooj tsavxwm tau hloov kho nws lub sijhawm rau baud tus nqi ntawm cov ntaub ntawv.
Specification
Kev sib txuas lus Interface
- Serial Ports: Ob tug shielded txiv neej D-sub 9-pin IBM AT style connectors tau tshaj RS422 thiab RS485 specifications. Serial kev sib txuas lus ACE siv yog hom ST16C550. Transceivers siv yog hom 75176.
- Cov ntaub ntawv Serial: 50 txog 115,200 baud. 460,800 baud raws li lub Hoobkas teeb tsa kev xaiv.
Asynchronous, Hom 16550 buffered UART.
- Chaw nyob: Nruam mappable nyob rau hauv 000 rau 3FF (hex) ntau yam ntawm AT I/O chaw nyob npav.
- Multipoint: Tau tshaj RS422 thiab RS485 specifications. Txog 32 tus neeg tsav tsheb thiab cov neeg txais kev tso cai ntawm kab.
- Input Isolation: 500 Volts, los ntawm lub computer thiab nruab nrab ntawm cov chaw nres nkoj.
- Tus neeg txais kev nkag siab rhiab heev: ± 200 mV, sib txawv input.
- Transmitter Output Tsav Peev Xwm: 60 mA (100 mA luv-circuit tam sim no muaj peev xwm).
Ib puag ncig
- Kev khiav hauj lwm kub: 0 txog +60 ° C.
- Industrial Version: -30º txog +85º C.
- Cia Kub Kub: -50 txog +120 ° C.
- Humidity: 5% txog 95%, non-condensing.
- Lub Hwj Chim Xav Tau: + 5VDC ntawm 200 mA raug, 300 mA siab tshaj.
Tshooj 2: Kev teeb tsa
Daim ntawv qhia Quick-Start Guide (QSG) tau ntim nrog lub rooj tsavxwm kom yooj yim rau koj. Yog tias koj twb tau ua cov kauj ruam los ntawm QSG, koj tuaj yeem pom tshooj no rov ua dua thiab tuaj yeem hla mus tom ntej kom pib tsim koj daim ntawv thov.
Lub software muab nrog lub PC / 104 Board yog nyob rau hauv CD thiab yuav tsum tau muab ntsia rau koj hard disk ua ntej yuav siv. Txhawm rau ua qhov no, ua cov kauj ruam hauv qab no kom tsim nyog rau koj lub operating system.
Kev teeb tsa CD
Cov lus qhia hauv qab no xav tias CD-ROM tsav yog tsav "D". Thov hloov daim ntawv tsav tsheb tsim nyog rau koj qhov system raws li qhov tsim nyog.
DOS
- Muab cov CD tso rau hauv koj lub CD-ROM tsav.
- Hom
hloov lub active drive rau CD-ROM tsav. - Hom
khiav qhov kev pab cuam. - Ua raws li cov lus qhia ntawm on-screen rau nruab software rau lub rooj tsavxwm no.
WINDOWS
- Muab cov CD tso rau hauv koj lub CD-ROM tsav.
- Lub kaw lus yuav tsum cia li khiav qhov kev pab cuam nruab. Yog hais tias qhov kev pab cuam nruab tsis khiav tam sim ntawd, nyem START | Khiav thiab ntaus
, nyem OK los yog nias 
. - Ua raws li cov lus qhia ntawm on-screen rau nruab software rau lub rooj tsavxwm no.
LINUX
- Thov xa mus rau linux.htm ntawm CD-ROM kom paub txog kev txhim kho cov chaw nres nkoj hauv qab linux.
Txhim kho Hardware
Ua ntej txhim kho lub rooj tsavxwm, ua tib zoo nyeem Tshooj 3 thiab Tshooj 4 ntawm phau ntawv no thiab teeb tsa lub rooj tsavxwm raws li koj xav tau. SETUP Program tuaj yeem siv los pab hauv kev teeb tsa jumpers ntawm lub rooj tsavxwm. Ceev faj tshwj xeeb nrog Kev Xaiv Chaw Nyob. Yog tias qhov chaw nyob ntawm ob qhov kev teeb tsa ua haujlwm sib tshooj, koj yuav ntsib tus cwj pwm tsis zoo hauv computer. Txhawm rau pab kom tsis txhob muaj teeb meem no, xa mus rau FINDBASE.EXE program ntsia los ntawm CD. Cov txheej txheem teeb tsa tsis teeb cov kev xaiv ntawm lub rooj tsavxwm, cov no yuav tsum tau teeb tsa los ntawm jumpers.
Lub rooj sib tham ntau qhov chaw nres nkoj no siv software-programmable chaw nyob rau txhua qhov UART, khaws cia hauv onboard EEPROM. Configure qhov chaw nyob ntawm EEPROM siv lub onboard Chaw Nyob Xaiv jumper thaiv, tom qab ntawd siv qhov kev pab cuam teeb tsa los teeb tsa chaw nyob rau txhua qhov onboard UART.
Txhawm rau nruab Board
- Nruab jumpers rau cov kev xaiv xaiv thiab chaw nyob raws li koj daim ntawv thov, raws li tau hais los saum toj no.
- Tshem tawm lub zog ntawm PC / 104 pawg.
- Sib dhos standoff hardware rau stacking thiab ruaj cov boards.
- Ua tib zoo ntsaws lub rooj tsavxwm mus rau PC / 104 connector ntawm CPU los yog mus rau pawg, kom ntseeg tau tias kev sib raug zoo ntawm tus pins ua ntej tag nrho cov khoom sib txuas ua ke.
- Nruab I/O cables rau ntawm lub rooj tsavxwm I/O connectors thiab txuas ntxiv kom ruaj ntseg pawg ua ke los yog rov ua cov kauj ruam 3-5 kom txog rau thaum tag nrho cov boards raug ntsia siv cov xaiv mounting hardware.
- Xyuas tias tag nrho cov kev sib txuas hauv koj lub PC / 104 pawg yog qhov tseeb thiab ruaj ntseg tom qab ntawd lub zog ua haujlwm.
- Khiav ib qho ntawm qhov muab sample cov kev pab cuam tsim nyog rau koj qhov kev khiav hauj lwm uas tau teeb tsa los ntawm CD los sim thiab ua kom koj lub installation.
Txhim kho COM Ports hauv Windows Operating Systems
* CEEB TOOM: COM boards tuaj yeem ntsia tau rau hauv txhua qhov kev khiav haujlwm thiab peb txhawb nqa kev teeb tsa hauv cov ntawv ua ntej ntawm lub qhov rais, thiab muaj peev xwm txhawb nqa yav tom ntej version thiab. Rau kev siv WinCE, hu rau lub Hoobkas rau cov lus qhia tshwj xeeb.
Windows NT4.0
Txhawm rau nruab COM chaw nres nkoj hauv Windows NT4 koj yuav tsum tau hloov ib qho kev nkag rau hauv cov npe. Qhov kev nkag no ua rau IRQ sib koom ntawm ntau qhov chaw nres nkoj COM boards. Tus yuam sij yog HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Serial\. Lub npe ntawm tus nqi yog PermitShare thiab cov ntaub ntawv yuav tsum tau teem rau 1.
Tom qab ntawd koj mam li ntxiv lub rooj tsavxwm cov chaw nres nkoj ua COM chaw nres nkoj, teeb tsa lub hauv paus chaw nyob thiab IRQs kom phim koj lub rooj tsavxwm qhov chaw. Txhawm rau hloov tus nqi sau npe, khiav RegEdit los ntawm START|RUN cov ntawv qhia zaub mov xaiv (los ntawm ntaus ntawv REGEDIT [ENTER] hauv qhov chaw muab). Ncaim tsob ntoo view ntawm sab laug kom pom tus yuam sij, thiab nyem ob npaug rau lub npe ntawm tus nqi qhib lub dialog uas tso cai rau koj los teeb tsa cov ntaub ntawv tshiab.
Txhawm rau ntxiv COM chaw nres nkoj, siv START|CONTROL PANEL|PORTS applet thiab nyem Ntxiv, tom qab ntawd nkag mus rau qhov tseeb UART chaw nyob thiab cuam tshuam tus lej. Thaum "Add New Port" dialog yog configured nias OK, tab sis teb "Tsis txhob rov pib dua tam sim no" thaum prompted, kom txog thaum koj tau ntxiv lwm yam ports thiab. Tom qab ntawd rov pib dua lub kaw lus ib txwm, lossis xaiv "Restart Now."
Windows XP
- Txhawm rau nruab COM chaw nres nkoj hauv Windows XP koj yuav tau manually txhim kho "tus qauv" cov chaw nres nkoj sib txuas lus, tom qab ntawd hloov cov chaw rau cov peev txheej siv los ntawm cov chaw nres nkoj kom phim cov khoom siv.
- Khiav lub "Add Hardware" applet los ntawm Tswj Vaj Huam Sib Luag.
- Nyem "Tom ntej" ntawm qhov "Zoo siab txais tos rau Ntxiv Cov Khoom Siv Tshiab Tshiab" dialog.
- Koj yuav pom luv luv “…searching…” lus, ces
- Xaiv "Yog, Kuv twb tau txuas lub hardware lawm" thiab nyem "Tom ntej"
Xaiv "Ntxiv cov cuab yeej kho vajtse tshiab" los ntawm hauv qab ntawm daim ntawv teev npe thiab nyem "Tom ntej". Xaiv "Nruab qhov kho vajtse uas kuv xaiv los ntawm ib daim ntawv teev npe" thiab nyem "Tom ntej".- Xaiv "Ports (COM & LPT) thiab nyem "Tom ntej"
- Xaiv "(Standard Port Types)" thiab "Kev Sib Txuas Lus Chaw Nres Nkoj" (lub neej ntawd), Nyem "Tom ntej." Nyem "Tom ntej".
Nyem qhov "View los yog hloov cov peev txheej rau qhov kho vajtse no (Advanced)” txuas.- Nyem qhov "Set Configuration Manually" khawm.
- Xaiv "Basic Configuration 8" los ntawm "Settings Raws li:" drop-down list.
- Xaiv "I/O Range" nyob rau hauv "Resource Settings" box thiab nias lub pob "Hloov chaw ...". Nkag mus rau lub hauv paus chaw nyob ntawm lub rooj tsavxwm, thiab nyem "OK"
- Xaiv "IRQ" nyob rau hauv "Resource Settings" box thiab Nyem "Hloov Chaw" khawm.
- Nkag mus rau IRQ ntawm lub rooj tsavxwm thiab nyem "OK".
- Kaw lub "Set Configuration Manually" dialog thiab nyem "Finish."
- Nyem "Tsis txhob Reboot" yog tias koj xav nruab ntau cov chaw nres nkoj. Rov ua txhua yam ntawm cov kauj ruam saum toj no, nkag mus rau tib IRQ tab sis siv qhov chaw nyob hauv Base rau txhua qhov ntxiv UART.
- Thaum koj ua tiav kev txhim kho cov chaw nres nkoj, reboot lub kaw lus ib txwm.
Tshooj 3: Kev xaiv xaiv
Cov kab lus hauv qab no piav qhia txog kev ua haujlwm ntawm ntau yam jumpers ntawm lub rooj tsavxwm.
A5 txog A9
- Muab cov jumpers ntawm qhov chaw A5 txog A9 los teeb tsa lub rooj tsav xwm lub hauv paus chaw nyob ntawm lub tsheb npav I/O.
- Txhim kho lub jumper teeb tsa me ntsis mus rau xoom, thaum tsis muaj jumper yuav tawm ntawm me ntsis ib qho.
- Saib tshooj 4 ntawm phau ntawv no kom paub meej ntxiv txog kev xaiv qhov chaw nyob I/O muaj.
- IRQ3 txog IRQ15
- Muab lub jumper rau ntawm qhov chaw uas sib haum mus rau qib IRQ uas koj software yuav ua tau
- kev pabcuam. Ib qho IRQ kev pabcuam ob qhov chaw nres nkoj serial.
485A / B thiab 422A / B
- Lub jumper ntawm 485 qhov chaw teeb tsa qhov chaw nres nkoj rau 2 xaim RS485 (Half Duplex) hom.
- Lub jumper ntawm 422 qhov chaw teeb tsa qhov chaw nres nkoj rau 4 xaim RS422 (Full-Duplex) hom.
- Rau 4 xaim RS485 daim ntawv thov teeb tsa 422 jumper yog qhov chaw nres nkoj yog tus tswv, yog qhov chaw nres nkoj yog qhev nruab ob lub 422 thiab 485 jumpers.
TRMI thiab TRMO
- Cov TRMI jumpers txuas rau ntawm lub rooj tsavxwm RC txiav Circuit Court rau cov khoom nkag (tau txais) kab.
- Cov jumpers no yuav tsum tau nruab rau 4 xaim RS422 hom.
- Cov TRMO jumpers txuas rau ntawm lub rooj tsavxwm RC txiav tawm Circuit Court rau cov zis / cov kab nkag.
- Cov jumpers no yuav tsum tau nruab rau 2 hlau RS485 hom nyob rau hauv qee yam mob.
- Saib kab lus hauv qab no kom paub meej ntxiv.
Terminations thiab Bias
Ib txoj kab sib kis yuav tsum raug txiav tawm ntawm qhov kawg tau txais hauv nws cov yam ntxwv impedance. Txhim kho lub jumper ntawm qhov chaw sau npe TRMO siv 120Ω load hauv series nrog 0.01μF capacitor hla cov zis rau RS422 hom thiab hla kev xa tawm / tau txais cov zis / tawm tswv yim rau RS485 kev ua haujlwm. Ib lub jumper ntawm TRMI qhov chaw siv lub load ntawm RS422 inputs.
Daim duab 3-2: Simplified Schematic – Ob-hlau thiab plaub-hlau txuas
Tag Nrho lossis Ib Nrab Duplex
Full-Duplex tso cai rau kev sib txuas lus bi-directional ib txhij. Ib Nrab-Duplex tso cai rau kev sib txuas lus ob txoj kev thiab txais kev sib txuas lus tab sis tsuas yog ib qho ntawm ib zaug, thiab yuav tsum muaj rau kev sib txuas lus RS485. Kev xaiv kom raug yog nyob ntawm cov hlau txuas uas siv los txuas ob lub chaw nres nkoj serial. Cov lus hauv qab no qhia tau hais tias yuav ua li cas ob lub rooj sib tham sib txuas lus yuav sib cuam tshuam rau ntau hom. Tx xaiv cov xaim xaim thiab Rx xaiv cov xaim xaim.
Kev sib txuas lus hom thiab kev xaiv kab
| ModeSimplex | 2-hlau txais nkaus xwb | Txx- | Kab Board A Pins1 |
Board B Pins2 |
| Rx + | 9 | 3 | ||
| Simplex | 2-xov xaim nkaus xwb | Tx + | 2 | 9 |
| Tx- | 3 | 1 | ||
| Ib nrab- Duplex | 2-kab | TRx + | 2 | 2 |
| TRx- | 3 | 3 | ||
| Full-Duplex | 4-xaim w/o hauv zos ncha | Tx + | 2 | 9 |
| Tx- | 3 | 1 | ||
| Txx- | 1 | 3 | ||
| Rx + | 9 | 2 |
Tshooj 4: Xaiv Chaw Nyob
Lub rooj tsavxwm lub hauv paus chaw nyob tuaj yeem xaiv tau nyob txhua qhov chaw hauv I / O chaw nyob hauv npav 000-3E0 hex, muab qhov chaw nyob tsis sib tshooj nrog lwm yam haujlwm. Yog tias tsis ntseeg, xa mus rau lub rooj hauv qab no rau cov npe ntawm cov chaw nyob tus qauv. (Lub hauv paus thiab theem nrab binary synchronous kev sib txuas lus chaw nres nkoj tau txais kev txhawb los ntawm Kev Ua Haujlwm System.) Lub hauv paus chaw nyob qhov kev pab cuam FINDBASE muab rau hauv CD (lossis diskettes) yuav pab koj xaiv qhov chaw nyob hauv paus uas yuav tsis txhob muaj teeb meem nrog lwm cov khoom siv hauv computer. Tom qab ntawd, SETUP program yuav qhia koj qhov chaw nyob qhov chaw nyob jumpers thaum koj tau xaiv qhov chaw nyob hauv paus. Cov hauv qab no muab cov ntaub ntawv keeb kwm yav dhau los pab koj nkag siab zoo txog cov txheej txheem no.
Table 4-1: Standard Chaw Nyob Assignments rau Computers
| HEX RANGE | Siv |
| 000-00F ib | 8237 DMA Controller 1 |
| 020-021 : kuv | 8259 cuam tshuam |
| 040-043 : kuv | 8253 Sij Hawm |
| 060-06F ib | 8042 Keyboard Controller |
| 070-07F ib | CMOS RAM, NMI Mask Reg, RT Clock |
| 080-09F ib | DMA Nplooj Ntawv Sau Npe |
| 0A0-0BF | 8259 Slave Interrupt Controller |
| 0 C0-0 DF | 8237 DMA Controller 2 |
| 0 F0-0 F1 | Math Coprocessor |
| 0 F8-0 FWV | Math Coprocessor |
| 170-177 : kuv | Tsau Disk Controller 2 |
| 1 F0-1 F8 | Tsau Disk Controller 1 |
| 200-207 : kuv | Chaw nres nkoj Game |
| 238-23 Ib | Bus Nas |
| 23C-23F ib | Alt. Bus Nas |
| 278-27F ib | Parallel tshuab luam ntawv |
| 2B0-2BF | EGA |
| 2C0-2CF | EGA |
| 2D0-2 DF | EGA |
| 2 E0-2E7 | GPIB (AT) |
| 2 E8-2 EF | Serial Chaw nres nkoj |
| 2 F8-2 FWV | Serial Chaw nres nkoj |
| 300-30F ib | |
| 310-31F ib | |
| 320-32F ib | Hard Disk (XT) |
| 370-377 : kuv | Floppy Controller 2 |
| 378-37F ib | Parallel tshuab luam ntawv |
| 380-38F ib | SDLC |
| 3A0-3 AW | SDLC |
| 3B0-3BB | MDA |
| 3 BC-3BF | Parallel tshuab luam ntawv |
| 3C0-3CF | VGA EGA |
| 3D0-3 DF | CGA |
| 3 E8-3 EF | Serial Chaw nres nkoj |
| 3 F0-3 F7 | Floppy Controller 1 |
| 3 F8-3 FWV | Serial Chaw nres nkoj |
Board Chaw Nyob jumpers yog cim A5-A9. Cov lus hauv qab no teev cov npe jumpers vs. kab chaw nyob tswj thiab cov txheeb ze qhov hnyav ntawm txhua tus.
Table 4-2: Board Base Chaw Nyob Teeb
| Board Chaw nyob Chaw | 1 tus lej | 2 Tus lej | 3rd Tus lej | ||||
| Jumper Lub npe | A9 | A8 | A7 | A6 | A5 | ||
| Chaw nyob Kab Tswj tau | A9 | A8 | A7 | A6 | A5 | ||
| Decimal Qhov hnyav | 512 | 256 | 128 | 64 | 32 | ||
| Hexadecimal Qhov hnyav | 200 | 100 | 80 | 40 | 20 | ||
Txhawm rau nyeem qhov chaw nyob jumper teeb, muab binary "1" rau jumpers uas OFF thiab binary "0" rau cov jumpers uas ON. Rau example, raws li tau piav qhia hauv cov lus hauv qab no, kev xaiv chaw nyob sib raug rau binary 11 000x xxxx (hex 300). Qhov "x xxxx" sawv cev rau kab nyob A4 txog A0 siv rau ntawm lub rooj tsavxwm los xaiv tus neeg sau npe. Saib Tshooj 5, Programming hauv phau ntawv no.
Table 4-3: Example Chaw Nyob Setup
| Jumper Lub npe | A9 | A8 | A7 | A6 | A5 | ||
| Teeb tsa | OFF | OFF | ON | ON | ON | ||
| Binary Sawv cev | 1 | 1 | 0 | 0 | 0 | ||
| Kev hloov dua siab tshiab Cov xwm txheej | 2 | 1 | 8 | 4 | 2 | ||
| HEX Sawv cev | 3 | 0 | 0 | ||||
Review Lub Rooj Xaiv Chaw Nyob Ua tib zoo ua ntej xaiv qhov chaw nyob hauv pawg thawj coj saib. Yog tias qhov chaw nyob ntawm ob qhov kev teeb tsa ua haujlwm sib tshooj koj yuav ntsib tus cwj pwm tsis zoo ntawm lub computer.
Tshooj 5: Programming
Tag nrho ntawm 32 qhov chaw nyob sib law liag tau muab faib rau pawg thawj coj, 17 ntawm uas tau siv. UARTs tau hais raws li hauv qab no:
Table 5-1: Chaw Nyob Xaiv Table
| I/O Chaw nyob | Nyeem | Sau |
| Base +0 txog 7 | UA TSAUG | UA TSAUG |
| Puag + 8 txog F | COM B UA | COM B UA |
| Base + 10 h | Board IRQ Status | N/A |
| Base kub ntawm +11 txog 1F | N/A | N/A |
Nyeem / Sau cov ntawv sau npe rau UARTs phim cov kev lag luam-tus qauv 16550 cov npe. Lub Rooj Tswjhwm Saib IRQ cov xwm txheej sau npe yog sib xws nrog Windows NT. COM A yuav teeb me ntsis 0 hi ntawm kev cuam tshuam, COM B yuav teeb me ntsis 1 hi ntawm kev cuam tshuam.
Sampli Programs
Muaj sample cov kev pab cuam muab nrog 104-ICOM-2S pawg thawj coj hauv C, Pascal, QuickBASIC, thiab ntau yam lus Windows. DOS samples nyob hauv DOS directory thiab Windows samples nyob rau hauv WIN32 directory.
Windows Programming
Lub rooj tsavxwm nruab rau hauv Windows li COM ports. Yog li Windows tus qauv API tuaj yeem siv tau. Tshwj xeeb:
- TsimFile() thiab CloseHandle() qhib thiab kaw qhov chaw nres nkoj.
- SetupComm(), SetCommTimeouts(), GetCommState(), thiab SetCommState() los teeb thiab hloov chaw nres nkoj.
- NyeemFile() thiab sauFile() kom nkag mus rau qhov chaw nres nkoj. Saib cov ntaub ntawv rau koj cov lus xaiv kom paub meej.
Raws li DOS, cov txheej txheem sib txawv heev. Cov seem ntawm tshooj no piav txog DOS programming.
Pib pib
Kev pib lub nti yuav tsum muaj kev paub txog UART cov ntawv teev npe. Thawj kauj ruam yog los teeb tsa baud tus nqi divisor. Koj ua qhov no los ntawm thawj zaug teeb tsa DLAB (Divisor Latch Access Bit) siab. Qhov no me ntsis yog Bit 7 ntawm Base Chaw Nyob +3. Hauv C code, hu yuav yog:
outportb(BASEADDR +3,0 × 80); Tom qab ntawd koj thauj cov divisor rau hauv Base Chaw nyob +0 (tsawg byte) thiab Base Chaw nyob +1 (siab byte). Cov kab zauv hauv qab no txhais cov kev sib raug zoo ntawm baud tus nqi thiab divisor: xav tau baud tus nqi = (crystal zaus) / (32 * divisor) UART moos zaus yog 1.8432MHz. Cov lus hauv qab no teev cov divisor frequencies nrov.
Table 5-2: Baud Rate Divisors
| Baud Tus nqi | Divisor | Divisor (Factory Kev xaiv) | Sau ntawv | Max. Diff'l. Cable Ntev * |
| 460800 | 1 | 550 | ||
| 230400 | 2 | 1400 | ||
| 115200 | 1 | 4 | 3000 ft ib. | |
| 57600 | 2 | 8 | 4000 ft ib. | |
| 38400 | 3 | 12 | 4000 ft ib. | |
| 28800 | 4 | 16 | 4000 ft ib. | |
| 19200 | 6 | 24 | 4000 ft ib. | |
| 14400 | 8 | 32 | 4000 ft ib. | |
| 9600 | 12 | 48 | Feem ntau | 4000 ft ib. |
| 4800 | 24 | 96 | 4000 ft ib. | |
| 2400 | 48 | 192 | 4000 ft ib. | |
| 1200 | 96 | 384 | 4000 ft ib. |
* Cov no yog cov theoretical siab tshaj plaws raws li cov xwm txheej raug thiab cov kab hluav taws xob zoo raws li EIA 485 thiab EIA 422 tus qauv rau cov tsav tsheb sib txawv.
Hauv C, cov cai los teeb tsa lub nti rau 9600 baud yog:
- outportb(BASEADDR, 0x0C);
- outportb(BASEADDR +1,0);
Thawj kauj ruam thib ob yog los teeb tsa Kab Tswj Kev Sau Npe ntawm Chaw Nyob Hauv Paus +3. Daim ntawv teev npe no txhais cov lus ntev, nres cov khoom, sib npaug, thiab DLAB.
- Cov khoom 0 thiab 1 tswj cov lus ntev thiab tso cai rau lo lus ntev ntawm 5 txog 8 khoom. Cov chaw me ntsis raug rho tawm los ntawm rho tawm 5 los ntawm cov lus xav tau ntev.
- Bit 2 txiav txim siab tus naj npawb ntawm cov khoom nres. Nws tuaj yeem muaj ib lossis ob qhov chaw nres tsheb. Yog tias Bit 2 raug teeb tsa rau 0, yuav muaj ib qho nres me ntsis. Yog tias Bit 2 tau teeb tsa rau 1, yuav muaj ob qhov nres.
- Cov khoom 3 txog 6 tswj kev sib luag thiab ua kom tawg. Lawv tsis nquag siv rau kev sib txuas lus thiab yuav tsum tau teem rau xoom.
- Bit 7 yog DLAB tau tham ua ntej. Nws yuav tsum tau teem rau xoom tom qab lub divisor tau thauj khoom lossis lwm yam yuav tsis muaj kev sib txuas lus.
Cov lus txib C los teeb UART rau 8-ntsis lo lus, tsis muaj qhov sib luag, thiab ib qho nres me ntsis yog:
outportb(BASEADDR +3, 0x03)
Qhov thib peb kauj ruam ntawm kev pib ua ntu zus yog los teeb tsa Modem Control Register ntawm Base Chaw Nyob +4. Cov ntawv sau npe no tswj cov haujlwm ntawm qee lub rooj tsavxwm. Bit 1 yog qhov Thov xa (RTS) tswj me ntsis. Qhov me me no yuav tsum tau qis qis kom txog thaum lub sijhawm sib kis. (Faj seeb: Thaum ua haujlwm hauv hom RS485 tsis siv neeg, lub xeev ntawm qhov me ntsis no tsis tseem ceeb.) Cov khoom 2 thiab 3 yog cov neeg siv khoom tsim tawm. Bit 2 tej zaum yuav tsis quav ntsej rau ntawm lub rooj tsavxwm no. Bit 3 yog siv los ua kom muaj kev cuam tshuam thiab yuav tsum tau teeb tsa siab yog tias tus neeg txais kev cuam tshuam yuav raug siv. Cov kauj ruam kawg pib yog kom yaug cov receiver buffers. Koj ua qhov no nrog ob qhov kev nyeem los ntawm tus txais tsis tau ntawm Base Chaw Nyob +0. Thaum ua tiav, UART tau npaj siv.
Txais tos
Kev txais tos tuaj yeem ua tau ob txoj hauv kev: kev xaiv tsa thiab cuam tshuam-tsav. Thaum kev xaiv tsa, kev txais tos tau ua tiav los ntawm kev nyeem tas li Kab Status Register ntawm Base Chaw Nyob +5. Ntsis 0 ntawm qhov kev sau npe no tau teeb tsa siab thaum twg cov ntaub ntawv npaj tau los nyeem los ntawm nti. Kev xaiv tsa tsis muaj txiaj ntsig ntawm cov ntaub ntawv siab saum toj no vim tias qhov kev zov me nyuam tsis tuaj yeem ua lwm yam thaum nws raug xaiv los yog cov ntaub ntawv tuaj yeem ploj. Cov kab lus hauv qab no siv lub vojvoog pov npav thiab siv tus nqi ntawm 13, (ASCII carriage return) ua tus cim kawg ntawm kev sib kis:
- do
- {
- thaum (!(inportb(BASEADDR +5) & 1)); /* Tos kom txog thaum cov ntaub ntawv npaj */ data[i++]= inportb(BASEADDR);
- }
- thaum (data[i]!=13); /* Nyeem kab kom txog thaum null cim rec'd */
Kev sib txuas lus cuam tshuam yuav tsum tau siv thaum twg los tau thiab xav tau rau cov ntaub ntawv siab. Kev sau tus neeg txais kev cuam tshuam tsis yog ntau qhov nyuaj tshaj li kev sau cov neeg txais ntawv pov thawj tab sis kev saib xyuas yuav tsum tau ua thaum txhim kho lossis tshem koj tus neeg cuam tshuam cuam tshuam kom tsis txhob sau ntawv tsis raug cuam tshuam, cuam tshuam tsis raug cuam tshuam, lossis tig kev cuam tshuam rau lub sijhawm ntev.
Tus neeg tuav ntaub ntawv yuav xub nyeem Daim Ntawv Teev Npe Tsis Txaus Siab ntawm Lub Chaw Nyob +2. Yog tias qhov cuam tshuam yog rau Cov Ntaub Ntawv Tau Txais, tus neeg tuav ntaub ntawv mam li nyeem cov ntaub ntawv. Yog tias tsis muaj kev cuam tshuam tseem tab tom tos, tswj tawm ntawm qhov niaj hnub. A sample handler, sau hauv C, yog raws li nram no:
- readback = inportb(BASEADDR +2);
- yog (readback & 4) /*Readback yuav teem rau 4 yog cov ntaub ntawv muaj*/ data[i++]=inportb(BASEADDR); outportb(0x20,0x20); /* Sau EOI rau 8259 Interrupt Controller*/ rov qab los;
Kev sib kis
RS485 kis tau tus mob yog yooj yim rau siv. Lub AUTO feature cia li tso cai rau lub transmitter thaum cov ntaub ntawv yog npaj xa, yog li tsis muaj software enabling txheej txheem yuav tsum tau.
Tshooj 6: Connector Pin Assignments
Qhov nrov 9-pin D subminiature connector (txiv neej) yog siv rau kev cuam tshuam rau kev sib txuas lus. Cov connectors yog nruab nrog 4-40 threaded standoffs (poj niam ntsia hlau xauv) los muab strain nyem. Lub connector sau npe P2 yog rau COM A, thiab P3 yog COM B.
Table 6-1: P2/P3 Connector Pin Assignments
| Pin Tsis muaj. | TSI RS422 Plaub-xaim | TSI RS485 Ob- Hlau |
| 1 | Txx- | |
| 2 | Tx + | T/Rx+ |
| 3 | Tx- | T/Rx- |
| 4 | Tsis siv | |
| 5 | cais GND | cais GND |
| 6 | Tsis siv | |
| 7 | Tsis siv | |
| 8 | Tsis siv | |
| 9 | Rx + |
Nco tseg
Yog tias chav tsev yog CE-cim, ces CE-certifiable cabling thiab breakout methodology (cable shields grounded at the connector, shielded twisted-pair wiring, etc) yuav tsum tau siv.
Cov neeg siv lus pom
Yog tias koj muaj teeb meem nrog phau ntawv no lossis tsuas yog xav muab qee cov lus qhia rau peb, thov xa email rau peb ntawm: manuals@accesio.com. Thov qhia meej txhua qhov yuam kev uas koj pom thiab suav nrog koj qhov chaw nyob xa ntawv kom peb tuaj yeem xa cov ntawv hloov tshiab rau koj.
10623 Roselle Street, San Diego CA 92121 Tel. (858) 550-9559 Fax (858) 550-7322 www.accesio.com
Daim ntawv ceeb toom
Cov ntaub ntawv hauv daim ntawv no tsuas yog muab rau kev siv xwb. ACCES tsis suav tias muaj kev lav phib xaub uas tshwm sim los ntawm daim ntawv thov lossis siv cov ntaub ntawv lossis cov khoom tau piav qhia hauv no. Cov ntaub ntawv no yuav muaj lossis siv cov ntaub ntawv thiab cov khoom tiv thaiv los ntawm cov cai lossis patents thiab tsis xa cov ntawv tso cai raws li txoj cai patent ntawm ACCES, lossis cov cai ntawm lwm tus. IBM PC, PC/XT, thiab PC/AT yog cov npe lag luam ntawm International Lag Luam Machinery Corporation. Luam tawm hauv Tebchaws Meskas. Copyright 2001, 2005 los ntawm ACCES I/O Products, Inc. 10623 Roselle Street, San Diego, CA 92121. All rights reserved.
CEEB TOOM!!
NTAUB NTAWV CEEB TOOM thiab txiav koj cov kab hluav taws xob txuas nrog lub khoos phis tawj fais fab. NTAUB NTAWV THIAJ TAU TXAIS LUB COMPUTER POV THAWJ ua ntej yuav teeb tsa lub Rooj Tswjhwm Saib. Kev sib txuas thiab txiav cov kab hluav taws xob, lossis teeb tsa lub rooj tsavxwm rau hauv lub tshuab nrog lub khoos phis tawj lossis lub zog hluav taws xob tuaj yeem ua rau muaj kev puas tsuaj rau I / O board thiab yuav tsis muaj tag nrho cov kev lav phib xaub, txhais los yog nthuav tawm.
Warranty
Ua ntej ua zaub mov xa tuaj, ACCES cov cuab yeej raug tshuaj xyuas kom zoo thiab sim ua raws li cov lus qhia tshwj xeeb. Txawm li cas los xij, yog tias cov khoom siv tsis ua haujlwm tshwm sim, ACCES lees paub nws cov neeg siv khoom kom muaj kev pabcuam sai thiab kev txhawb nqa. Tag nrho cov cuab yeej tsim los ntawm ACCES uas pom tias muaj kev puas tsuaj yuav raug kho lossis hloov raws li cov kev xav hauv qab no.
Cov Cai thiab Cov Cai
Yog hais tias ib chav tsev xav tias tsis ua hauj lwm, hu rau ACCES' Customer Service department. Npaj kom muab tus qauv naj npawb, serial tooj, thiab piav qhia txog cov tsos mob tsis ua hauj lwm. Peb yuav qhia qee qhov kev sim yooj yim kom paub meej tias qhov ua tsis tiav. Peb yuav muab tus lej Xa Khoom Rov Qab (RMA) uas yuav tsum tshwm sim ntawm daim ntawv lo sab nraud ntawm pob khoom xa rov qab. Tag nrho cov chav nyob / cov khoom yuav tsum tau ntim kom zoo rau kev tuav thiab xa rov qab nrog cov nqi thauj khoom ua ntej mus rau ACCES Lub Chaw Pabcuam, thiab yuav raug xa rov qab mus rau tus neeg siv khoom / tus neeg siv lub xaib thauj khoom ua ntej them nyiaj thiab xa ntawv xa tuaj.
Kev pab them nqi
- Thawj peb xyoos: Rov qab chav tsev / ib feem yuav raug kho thiab / lossis hloov ntawm ACCES kev xaiv yam tsis tau them nqi zog lossis cov khoom tsis suav nrog kev lav. Warranty pib nrog cov khoom xa tuaj.
Tom qab Xyoo: Thoob plaws hauv koj cov cuab yeej siv lub neej, ACCES npaj txhij los muab kev pabcuam rau ntawm qhov chaw lossis hauv cov nroj tsuag ntawm tus nqi tsim nyog zoo ib yam li lwm cov tuam txhab hauv kev lag luam.
Cov khoom siv tsis yog tsim los ntawm ACCES
Cov cuab yeej muab tab sis tsis tsim los ntawm ACCES tau lees paub thiab yuav raug kho raws li cov lus cog tseg thiab cov xwm txheej ntawm cov chaw tsim khoom siv cov khoom siv lav.
General
Raws li qhov Warranty no, kev lav phib xaub ntawm ACCES yog txwv rau kev hloov pauv, kho lossis muab credit (ntawm ACCES kev txiav txim siab) rau txhua yam khoom uas tau ua pov thawj tias muaj kev puas tsuaj thaum lub sijhawm lav. Tsis muaj qhov xwm txheej twg yog ACCES lav rau qhov tshwm sim lossis kev puas tsuaj tshwj xeeb los ntawm kev siv lossis siv tsis raug ntawm peb cov khoom. Tus neeg siv khoom yog lub luag haujlwm rau txhua tus nqi uas tshwm sim los ntawm kev hloov kho lossis ntxiv rau ACCES cov cuab yeej tsis tau pom zoo sau los ntawm ACCES lossis, yog tias hauv ACCES xav tias cov khoom siv tau raug siv tsis raug. "Kev siv txawv txav" rau lub hom phiaj ntawm qhov kev lees paub no txhais tau tias yog ib qho kev siv uas cov cuab yeej raug nthuav tawm lwm yam tshaj li qhov siv tau teev tseg lossis npaj ua pov thawj los ntawm kev yuav khoom lossis muag sawv cev. Lwm yam tshaj li qhov saum toj no, tsis muaj lwm yam kev lees paub, qhia lossis qhia, yuav tsum siv rau ib qho thiab tag nrho cov khoom siv los yog muag los ntawm ACCES.
Assured Systems
^ssured Systems yog lub tuam txhab ua lag luam thev naus laus zis nrog ntau dua 1,500 tus neeg siv khoom niaj hnub hauv 80 lub teb chaws, xa ntau tshaj 85,000 lub tshuab rau ntau tus neeg siv khoom hauv 12 xyoo ntawm kev lag luam. Peb muab cov khoom lag luam zoo thiab tsim tshiab rugged xam, tso saib, sib tham thiab sau cov ntaub ntawv daws teeb meem rau cov khoom lag luam kos duab, kev lag luam, thiab digital-tawm-ntawm-tsev.
US
- sales@assured-systems.com
- Muag: +1 347 719 4508
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- Teb chaws USA
EMEA
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- United Kingdom
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www.assured-systems.com | sales@assured-systems.com
Cov ntaub ntawv / Cov ntaub ntawv
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ASSURED SYSTEMS 104-ICOM-2S thiab 104-COM-2S Access IO Isolated Serial Card [ua pdf] Tus neeg siv phau ntawv 104-ICOM-2S thiab 104-COM-2S, 104-ICOM-2S, 104-ICOM-2S Access IO Isolated Serial Card, Access IO Isolated Serial Card, Isolated Serial Card, Serial Card, Daim npav |
