TABBAS SYSTEMS 104-ICOM-2S da 104-COM-2S Samun Katin Serial Serial IO
Ƙayyadaddun samfur
- Samfura: 104-ICOM-2S
- Mai ƙera: ACCES I/O Products, Inc.
- Adireshin: 10623 Roselle Street, San Diego, CA 92121
- Tuntuɓar: 858-550-9559 | contactus@accesio.com
- Website: www.accesio.com
FAQ (Tambayoyin da ake yawan yi)
- Tambaya: Menene zan yi idan allon ACCES I/O na ya gaza?
A: Tuntuɓi tallafin abokin ciniki na ACCES don sabis na gaggawa da yiwuwar gyara ko sauyawa ƙarƙashin garanti. - Tambaya: Zan iya shigar da allo tare da kunna kwamfutar?
A: A'a, koyaushe tabbatar da kashe wutar kwamfutar kafin haɗawa ko cire haɗin igiyoyi ko shigar da alluna don hana lalacewa.
Babi na 1: Gabatarwa
- An ƙera wannan allon sadarwar serial don amfani a cikin kwamfutoci masu dacewa da PC/104. Ana samar da tashoshin bayanai keɓance guda biyu a kan allo. Model COM-2S shine kawai sigar ICOM-2S mara ware.
Multipoint Opto- ware Communications
Hukumar tana ba da damar watsa maɓalli da yawa akan dogayen layin sadarwa a cikin mahalli masu hayaniya ta amfani da direbobin layin RS422 ko RS485. Layukan bayanan an keɓe su daga kwamfuta kuma daga juna don tabbatar da sadarwa lokacin da babban hayaniyar yanayin gama gari ya mamaye. Masu juyawa na kan jirgin DC-DC suna ba da keɓantaccen wutar lantarki don da'irar direban layi.
Ana samun oscillator crystal akan allo. Wannan oscillator yana ba da izinin zaɓi na ƙimar baud daidai daga 50 zuwa 115,200. Ana iya bayar da ƙimar Baud har zuwa 460,800 baud azaman zaɓin masana'anta. Sashen shirye-shirye na wannan jagorar ya ƙunshi tebur da za a yi amfani da su lokacin zabar ƙimar baud.
Nau'in fitarwar da aka yi amfani da shi, nau'in 75176B, suna da ikon tukin layukan sadarwa masu tsayin gaske akan ƙimar baud. Za su iya fitar da har zuwa ± 60mA akan madaidaitan layukan kuma suna karɓar abubuwan shigar da ƙarancin siginar ± 200mV. Opto-isolators a kan allon suna ba da kariya zuwa iyakar 500 V. Idan akwai rikici na sadarwa, masu amfani da wutar lantarki suna da rufewar thermal.
Daidaita Tashar Tashar COM
Nau'in ST16C550 UARTs ana amfani dashi azaman Abubuwan Sadarwar Asynchronous (ACE) wanda ya haɗa da watsawa / karɓa na 16-byte don karewa daga bayanan da aka ɓace a cikin tsarin aiki da yawa, yayin da yake kiyaye daidaiton kashi 100 tare da ainihin tashar tashar IBM ta asali.
Kuna iya zaɓar adireshin tushe a ko'ina cikin kewayon adireshin I/O 000 zuwa 3E0 hex.
Hanyoyin Sadarwa
Wannan ƙirar tana goyan bayan nau'ikan haɗin kebul na waya 2 da 4-waya. Waya 2 ko Half-Duplex yana ba da damar zirga-zirgar zirga-zirgar zirga-zirga ta ɓangarorin biyu, amma hanya ɗaya kawai a lokaci guda. A cikin wayoyi 4 ko cikakkun bayanai na yanayin Duplex suna tafiya a bangarorin biyu a lokaci guda.
Layi Bias da Kashewa
Don ƙarin rigakafin amo, ana iya loda layukan sadarwa a mai karɓa kuma a karkata ga mai watsawa. Sadarwar RS485 tana buƙatar mai watsawa ɗaya ya samar da son zuciya voltage don tabbatar da sanannen yanayin "sifili" lokacin da duk masu watsawa ke kashe, kuma za a ƙare shigarwar mai karɓa na ƙarshe a kowane ƙarshen hanyar sadarwa don hana "ringing". Jirgin yana goyan bayan waɗannan zaɓuɓɓuka tare da masu tsalle a kan allo. Dubi Babi na 3, Zaɓin Zaɓi don ƙarin cikakkun bayanai.
Gudanar da Transceiver
Sadarwar RS485 tana buƙatar kunnawa da kashe direban mai watsawa kamar yadda ake buƙata, don ba da damar duk alluna su raba layin sadarwa. Hukumar tana da sarrafa direba ta atomatik. Lokacin da allon ba ya aikawa, ana kunna mai karɓa kuma direban watsawa ya mutu. Ƙarƙashin sarrafawa ta atomatik, lokacin da za a watsa bayanai, ana kashe mai karɓa kuma an kunna direba. Hukumar ta atomatik tana daidaita lokacinta zuwa ƙimar baud ɗin bayanan.
Ƙayyadaddun bayanai
Sadarwar Sadarwa
- Serial Ports: D-sub 9-pin IBM AT masu haɗe-haɗe masu dacewa da ƙayyadaddun RS422 da RS485 maza masu kariya biyu. Serial sadarwa ACE da aka yi amfani da ita ce nau'in ST16C550. Ana amfani da transceivers nau'in 75176.
- Serial Data rate: 50 to 115,200 baud. 460,800 baud azaman zaɓin masana'anta da aka shigar.
Asynchronous, Nau'in 16550 buffered UART.
- Adireshi: Ci gaba da taswira tsakanin 000 zuwa 3FF (hex) na adiresoshin bas AT I/O.
- Multipoint: Mai jituwa tare da ƙayyadaddun RS422 da RS485. Har zuwa direbobi 32 da masu karɓa a kan layi.
- Keɓewar shigarwa: 500 Volts, daga kwamfuta da tsakanin tashoshin jiragen ruwa.
- Hankalin shigar da mai karɓa: ± 200 mV, shigarwar banbanta.
- Ƙarfin Fitar da Mai watsawa: 60mA (Ikon gajeriyar kewayawa na yanzu 100mA).
Muhalli
- Yanayin Zazzabi Mai Aiki: 0 zuwa +60 °C.
- Sigar Masana'antu: -30º zuwa +85ºC.
- Adana Zazzabi: -50 zuwa +120 °C.
- Humidity: 5% zuwa 95%, mara taurin kai.
- Wutar da ake buƙata: +5VDC a 200mA na yau da kullun, matsakaicin 300mA.
Babi na 2: Shigarwa
Jagoran Farawa Mai Sauri (QSG) da aka buga tare da allon don dacewa. Idan kun riga kun aiwatar da matakan daga QSG, kuna iya samun wannan babin ba shi da yawa kuma kuna iya tsallakewa gaba don fara haɓaka aikace-aikacenku.
Software da aka bayar tare da wannan PC/104 Board yana kan CD kuma dole ne a sanya shi a kan rumbun kwamfutarka kafin amfani. Don yin wannan, aiwatar da matakai masu zuwa kamar yadda suka dace da tsarin aikin ku.
Shigar CD
Umurnai masu zuwa suna ɗauka cewa drive ɗin CD-ROM shine “D”. Da fatan za a musanya wasiƙar tuƙi mai dacewa don tsarin ku kamar yadda ya cancanta.
DOS
- Sanya CD ɗin cikin CD-ROM ɗin ku.
- Nau'in
don canja wurin aiki zuwa CD-ROM drive. - Nau'in
don gudanar da shirin shigar. - Bi umarnin kan allo don shigar da software na wannan allo.
WINDOWS
- Sanya CD ɗin cikin CD-ROM ɗin ku.
- Ya kamata tsarin ya gudanar da shirin shigarwa ta atomatik. Idan shirin shigarwa ba ya aiki da sauri, danna START | RUN da buga
, danna Ok ko latsa 
. - Bi umarnin kan allo don shigar da software na wannan allo.
LINUX
- Da fatan za a koma zuwa linux.htm akan CD-ROM don bayani kan shigar da serial ports karkashin Linux.
Shigar da Hardware
Kafin shigar da allo, karanta a hankali Babi na 3 da Babi na 4 na wannan jagorar kuma saita hukumar gwargwadon bukatunku. Ana iya amfani da Shirin SETUP don taimakawa wajen daidaita masu tsalle a kan allo. Yi hankali musamman da Zaɓin Adireshi. Idan adiresoshin ayyuka biyu da aka shigar sun zo juna, za ku fuskanci halayen kwamfuta maras tabbas. Don taimakawa guje wa wannan matsalar, koma zuwa shirin FINDBASE.EXE da aka shigar daga CD ɗin. Shirin saitin bai saita zaɓuɓɓuka akan allon ba, dole ne a saita waɗannan ta masu tsalle.
Wannan kwamitin sadarwa na tashar tashar jiragen ruwa da yawa yana amfani da jeri na adireshi masu shirye-shirye don kowane UART, wanda aka adana a cikin jirgin EEPROM. Sanya adireshin EEPROM ta amfani da shingen Zaɓin Address na kanboard, sannan yi amfani da shirin Saitin da aka bayar don saita adireshi don kowane UART akan jirgin.
Don Shigar da Hukumar
- Sanya masu tsalle don zaɓaɓɓun zaɓuɓɓuka da adireshin tushe gwargwadon buƙatun ku, kamar yadda aka ambata a sama.
- Cire wuta daga tari na PC/104.
- Haɗa kayan aikin tsayawa don tarawa da kiyaye allunan.
- A hankali toshe allo a kan mahaɗin PC/104 akan CPU ko kan tari, tabbatar da daidaita daidaitattun fil ɗin kafin a zaunar da masu haɗin gaba ɗaya.
- Shigar da igiyoyi na I/O akan masu haɗin I/O na hukumar kuma ci gaba da kiyaye tari tare ko maimaita matakai 3-5 har sai an shigar da duk allunan ta amfani da kayan hawan da aka zaɓa.
- Bincika cewa duk haɗin da ke cikin PC/104 ɗin ku daidai ne kuma amintacce sannan kunna tsarin.
- Guda ɗaya daga cikin sampda shirye-shiryen da suka dace da tsarin aikin ku waɗanda aka girka daga CD don gwadawa da tabbatar da shigarwar ku.
Shigar da tashoshin jiragen ruwa na COM a cikin Tsarin Ayyukan Windows
* ABIN LURA: Ana iya shigar da allunan COM a kusan kowane tsarin aiki kuma muna tallafawa shigarwa a cikin sigogin windows na baya, kuma suna da yuwuwar tallafawa sigar gaba kuma. Don amfani a WinCE, tuntuɓi masana'anta don takamaiman umarni.
Windows NT4.0
Don shigar da tashoshin COM a cikin Windows NT4 kuna buƙatar canza shigarwa ɗaya a cikin rajista. Wannan shigarwa yana ba da damar raba IRQ akan allunan COM mai tashar jiragen ruwa da yawa. Makullin shine HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesSerial\. Sunan ƙimar shine PermitShare kuma ya kamata a saita bayanan zuwa 1.
Za ku ƙara tashar jiragen ruwa na hukumar azaman tashar jiragen ruwa na COM, saita adiresoshin tushe da IRQ don dacewa da saitunan hukumar ku. Don canza ƙimar rajista, gudanar da RegEdit daga zaɓin START|RUN menu (ta buga REGEDIT [ENTER] a cikin sararin da aka bayar). Kewaya ƙasa bishiyar view a gefen hagu don nemo maɓalli, kuma danna sau biyu akan sunan darajar don buɗe maganganun ba da damar saita sabon ƙimar bayanai.
Don ƙara tashar COM, yi amfani da START|CONTROL PANEL|PORTS applet kuma danna ADD, sannan shigar da adireshin UART daidai da lambar Katsewa. Lokacin da aka daidaita maganganun “Ƙara Sabon Port” danna Ok, amma amsa “Kada a sake farawa Yanzu” idan an sa ku, har sai kun ƙara wasu tashoshin jiragen ruwa kuma. Sa'an nan kuma sake kunna tsarin kullum, ko kuma ta zaɓi "Sake farawa Yanzu."
Windows XP
- Don shigar da tashoshin jiragen ruwa na COM a cikin Windows XP za ku kasance da hannu suna shigar da tashoshin sadarwa na "misali", sannan canza saitunan albarkatun da tashoshin ke amfani da su don dacewa da kayan aikin.
- Gudanar da applet "Ƙara Hardware" daga Control Panel.
- Danna "Na gaba" a cikin "Barka da zuwa Ƙara Sabon Hardware Wizard" maganganu.
- A taƙaice za ku ga saƙon “…bincike…”, sannan
- Zaɓi "Ee, Na riga na haɗa kayan aikin" kuma danna "Na gaba"
Zaɓi "Ƙara sabon na'urar hardware" daga ƙasan jerin da aka gabatar kuma danna "Na gaba." Zaɓi "Shigar da kayan aikin da na zaɓa da hannu daga lissafin" kuma danna "Na gaba."- Zaɓi "Ports (COM & LPT) kuma danna "Na gaba"
- Zaɓi "(Standard Port Types)" da "Tashar Sadarwar Sadarwa" (matsalolin), danna "Next." Danna "Next."
Danna "View ko canza albarkatu don wannan hanyar haɗin gwiwa (Babba).- Danna maɓallin "Set Kanfigareshan da hannu" button.
- Zaɓi "Basic Kanfigareshan 8" daga "Saituna bisa:" jerin zaɓuka.
- Zaɓi "I/O Range" a cikin akwatin "Saitunan albarkatun" kuma danna maɓallin "Change Settings...". Shigar da adireshin tushe na allon, kuma danna "Ok"
- Zaɓi "IRQ" a cikin akwatin "Saitunan albarkatun" kuma danna maɓallin "Change Settings".
- Shigar da IRQ na allo kuma danna "Ok".
- Rufe maganganun "Set Configuration da hannu" kuma danna "Gama."
- Danna "Kada a sake yi" idan kuna son shigar da ƙarin tashoshin jiragen ruwa. Maimaita duk matakan da ke sama, shigar da IRQ iri ɗaya amma ta amfani da adireshin Tushen da aka saita don kowane ƙarin UART.
- Idan kun gama shigar da tashoshin jiragen ruwa, sake kunna tsarin kullum.
Babi na 3: Zaɓin zaɓi
Sakin layi na gaba suna bayyana ayyukan masu tsalle-tsalle daban-daban a kan allo.
A5 zuwa A9
- Sanya masu tsalle a wurare A5 zuwa A9 don saita adireshin tushe na hukumar akan bas ɗin I/O.
- Shigar da jumper yana saita wannan bit zuwa sifili, yayin da babu mai tsalle da zai bar ɗan ɗaya ɗaya.
- Dubi babi na 4 na wannan jagorar don ƙarin cikakkun bayanai kan zaɓar adireshin I/O da ke akwai.
- IRQ3 ta hanyar IRQ15
- Sanya jumper a wurin da ya dace da matakin IRQ wanda software ɗinku za ta iya yi
- hidima. Ɗayan IRQ yana ba da sabis na tashar jiragen ruwa na serial.
485A/B da 422A/B
- Mai tsalle a wurin 485 yana saita waccan tashar jiragen ruwa don yanayin waya 2 na waya RS485 (Half Duplex).
- Mai tsalle a wurin 422 yana saita wannan tashar jiragen ruwa don yanayin waya 4 (Full-Duplex).
- Don aikace-aikacen waya 4 na RS485 shigar da jumper 422 idan tashar jirgin ruwa ce maigidan, idan tashar jiragen ruwa bawan ce shigar duka masu tsalle 422 da 485.
TRMI da TRMO
- Masu tsalle-tsalle na TRMI suna haɗa da'irorin ƙarewa na kan jirgin RC zuwa layin shigarwa (karɓi).
- Ya kamata a shigar da waɗannan masu tsalle don yanayin waya 4 na waya.
- Masu tsalle-tsalle na TRMO suna haɗa da'irori na ƙarewar RC a kan jirgin zuwa layukan fitarwa/shigarwa.
- Ya kamata a shigar da waɗannan masu tsalle don yanayin waya 2 na RS485 a ƙarƙashin wasu sharuɗɗa.
- Dubi sakin layi na gaba don ƙarin bayani.
Karshe da Bias
Ya kamata a ƙare layin watsawa a ƙarshen karɓa a cikin halayensa. Shigar da jumper a wurin da aka yiwa lakabin TRMO yana amfani da nauyin 120Ω a cikin jerin tare da 0.01μF capacitor a fadin fitarwa don yanayin RS422 da kuma fadin watsawa / karɓa / shigarwa don aikin RS485. Mai tsalle a wurin TRMI yana amfani da kaya akan abubuwan RS422.
Hoto 3-2: Siffar Tsari - Waya Biyu da Haɗin Waya Hudu
Cikakken ko Rabin Duplex
Cikakkun Duplex yana ba da damar hanyoyin sadarwa guda biyu na lokaci guda. Half-Duplex yana ba da damar watsawa biyu-directional da sadarwar mai karɓa amma ɗaya kawai a lokaci guda, kuma ana buƙatar sadarwar RS485. Zaɓin da ya dace ya dogara da hanyoyin haɗin waya da ake amfani da su don haɗa tashoshin jiragen ruwa guda biyu. Teburin da ke gaba yana nuna yadda za'a haɗa allon sadarwa na serial guda biyu don hanyoyin daban-daban. Tx yana ƙaddamar da wayoyi masu watsawa kuma Rx yana ƙaddamar da wayoyi masu karɓa.
Hanyoyin Sadarwa da Zaɓuɓɓukan Cabling
| ModeSimplex | 2-waya Karɓa Kawai | Rx- | Kebul Hukumar A Fil1 |
Hukumar B Fil2 |
| Rx + | 9 | 3 | ||
| Simplex | 2-wayar watsawa kawai | Tx + | 2 | 9 |
| Tx- | 3 | 1 | ||
| Half- Duplex | 2-waya | TRx+ | 2 | 2 |
| TRx- | 3 | 3 | ||
| Cikakken Duplex | 4-waya w/o echo na gida | Tx + | 2 | 9 |
| Tx- | 3 | 1 | ||
| Rx- | 1 | 3 | ||
| Rx + | 9 | 2 |
Babi na 4: Zaɓin Adireshi
Ana iya zaɓar adireshin tushe na hukumar a ko'ina a cikin kewayon adreshin bas na I/O 000-3E0 hex, yana ba da cewa adireshin baya haɗuwa da wasu ayyuka. Idan kuna shakka, koma zuwa teburin da ke ƙasa don jerin daidaitattun ayyukan adireshi. (Masu tashoshin sadarwa na farko da na sakandare na haɗin gwiwa suna da goyon bayan Operating System.) Shirin gano adireshin tushe FINDBASE da aka bayar akan CD (ko diskettes) zai taimake ka ka zaɓi adireshin tushe wanda zai guje wa rikici da sauran kayan aikin kwamfuta. Sa'an nan, shirin SETUP zai nuna maka inda za ka sanya masu tsalle adreshin idan ka zaɓi adireshin tushe. Mai zuwa yana ba da bayanan baya don taimaka muku fahimtar wannan tsari sosai.
Table 4-1: Standard Address Assignments for Computers
| Farashin HEX | AMFANI |
| 000-00F | Mai Rarraba DMA 8237 |
| 020-021 | 8259 Katsewa |
| 040-043 | 8253 Lokaci |
| 060-06F | 8042 Mai Kula da Allon madannai |
| 070-07F | CMOS RAM, NMI Mask Reg, RT Agogo |
| 080-09F | DMA Page Register |
| 0A0-0BF | 8259 Mai Kula da Katse Bawa |
| 0C0-0DF | Mai Rarraba DMA 8237 |
| 0F0-0F1 | Math Coprocessor |
| 0F8-0FF | Math Coprocessor |
| 170-177 | Kafaffen Mai sarrafa Disk 2 |
| 1F0-1F8 | Kafaffen Mai sarrafa Disk 1 |
| 200-207 | Tashar Wasa |
| 238-23B | Mouse bas |
| 23C-23F | Alt. Mouse bas |
| 278-27F | Daidaici Printer |
| 2B0-2BF | EGA |
| Saukewa: 2C0-2CF | EGA |
| 2D0-2DF | EGA |
| 2E0-2E7 | GPIB (AT) |
| 2E8-2EF | Serial Port |
| 2F8-2FF | Serial Port |
| 300-30F | |
| 310-31F | |
| 320-32F | Hard Disk (XT) |
| 370-377 | Mai sarrafa Floppy 2 |
| 378-37F | Daidaici Printer |
| 380-38F | SDLC |
| 3A0-3AF | SDLC |
| 3B0-3BB | MDA |
| 3BC-3BF | Daidaici Printer |
| Saukewa: 3C0-3CF | Farashin EGA |
| 3D0-3DF | CGA |
| 3E8-3EF | Serial Port |
| 3F0-3F7 | Mai sarrafa Floppy 1 |
| 3F8-3FF | Serial Port |
Masu tsalle Adireshin allo ana yiwa alama A5-A9. Tebur mai zuwa yana lissafin sunan masu tsalle vs. layin adireshin da aka sarrafa da ma'aunin dangi na kowane.
Tebur 4-2: Saitin Adireshin Hukumar
| Hukumar Adireshi Saituna | Lambobin 1st | Lambobin 2 | Lambobin 3 | ||||
| Jumper Suna | A9 | A8 | A7 | A6 | A5 | ||
| Adireshi Layi Sarrafa | A9 | A8 | A7 | A6 | A5 | ||
| Decimal Nauyi | 512 | 256 | 128 | 64 | 32 | ||
| Hexadecimal Nauyi | 200 | 100 | 80 | 40 | 20 | ||
Domin karanta saitin jumper adireshi, sanya binary "1" ga masu tsalle-tsalle waɗanda suke KASHE da binary "0" ga masu tsalle-tsalle da suke ON. Domin misaliample, kamar yadda aka kwatanta a tebur mai zuwa, zaɓin adireshi yayi daidai da binary 11 000x xxxx (hex 300). “x xxxx” yana wakiltar layukan adireshi A4 zuwa A0 da aka yi amfani da su a kan allo don zaɓar masu rajista. Dubi Babi na 5, Shirye-shirye a cikin wannan littafin.
Tebur 4-3: Exampsai Saitin Adireshi
| Jumper Suna | A9 | A8 | A7 | A6 | A5 | ||
| Saita | KASHE | KASHE | ON | ON | ON | ||
| Binary Wakilci | 1 | 1 | 0 | 0 | 0 | ||
| Juyawa Dalilai | 2 | 1 | 8 | 4 | 2 | ||
| HEX Wakilci | 3 | 0 | 0 | ||||
Review Teburin Zaɓin Adireshi a hankali kafin zaɓar adireshin allo. Idan adiresoshin ayyuka biyu da aka shigar sun zo juna, za ku fuskanci halayen kwamfuta maras tabbas.
Babi na 5: Shirye-shirye
An ware wuraren adireshi guda 32 a jere ga hukumar, 17 daga cikinsu ana amfani da su. Ana magance UARTs kamar haka:
Tebur 5-1: Teburin Zaɓin Adireshi
| I/O Adireshi | Karanta | Rubuta |
| Base +0 zuwa 7 | COM A UART | COM A UART |
| Base +8 zuwa F | COM B UART | COM B UART |
| Base +10h | Matsayin Hukumar IRQ | N/A |
| Tushen +11 zuwa 1F | N/A | N/A |
Littattafan Karatu/Rubuta don UARTs sun dace da ma'auni na masana'antu na 16550. Rijistar matsayin Hukumar IRQ ta dace da Windows NT. COM A zai saita bit 0 hi akan katsewa, COM B zai saita bit 1 hi akan katsewa.
Sampda Shirye-shiryen
Akwai sampshirye-shiryen da aka bayar tare da allon 104-ICOM-2S a cikin C, Pascal, QuickBASIC, da yarukan Windows da yawa. DOS samples suna cikin kundin adireshin DOS da Windows sampLes suna cikin kundin adireshin WIN32.
Windows Programming
Jirgin yana shigarwa cikin Windows azaman tashoshin COM. Don haka ana iya amfani da daidaitattun ayyukan API na Windows. Musamman:
- ƘirƙiriFile() da CloseHandle () don buɗewa da rufe tashar jiragen ruwa.
- SetupComm(), SetCommTimeouts(), GetCommState(), da SetCommState() don saita da canza saitunan tashar tashar jiragen ruwa.
- KarantaFile() da kuma rubutaFile() don shiga tashar jiragen ruwa. Duba takaddun don harshen da kuka zaɓa don cikakkun bayanai.
A karkashin DOS, tsarin ya bambanta sosai. Ragowar wannan babin yana bayyana shirye-shiryen DOS.
Farawa
Fara guntu yana buƙatar sanin saitin rijistar UART. Mataki na farko shine saita mai raba kuɗin baud. Kuna yin wannan ta farko saita DLAB (Divisor Latch Access Bit) babba. Wannan bit shine Bit 7 a Base Address +3. A cikin lambar C, kiran zai kasance:
waje (BASEADDR +3,0×80); Sannan zaku loda divisor zuwa Base Address +0 (low byte) da Base Address +1 (high byte). Ma'auni mai zuwa yana bayyana alaƙa tsakanin ƙimar baud da mai rarrabawa: ƙimar baud da ake so = (mitar crystal) / (32 * mai rarrabawa) Mitar agogon UART shine 1.8432MHz. Teburin da ke gaba ya lissafta shahararrun mitoci masu rarraba.
Tebur 5-2: Baud Rate Rate
| Baud Rate | Mai rarrabawa | Rarraba (Factory Zabin) | Bayanan kula | Max. Diff'l. Tsawon Kebul* |
| 460800 | 1 | 550 | ||
| 230400 | 2 | 1400 | ||
| 115200 | 1 | 4 | 3000 ft. | |
| 57600 | 2 | 8 | 4000 ft. | |
| 38400 | 3 | 12 | 4000 ft. | |
| 28800 | 4 | 16 | 4000 ft. | |
| 19200 | 6 | 24 | 4000 ft. | |
| 14400 | 8 | 32 | 4000 ft. | |
| 9600 | 12 | 48 | Mafi Yawanci | 4000 ft. |
| 4800 | 24 | 96 | 4000 ft. | |
| 2400 | 48 | 192 | 4000 ft. | |
| 1200 | 96 | 384 | 4000 ft. |
* Waɗannan su ne madaidaitan ka'idoji dangane da yanayi na yau da kullun da ingantattun igiyoyi masu inganci dangane da ma'aunin EIA 485 da EIA 422 don daidaitattun direbobin bambance-bambancen.
A cikin C, lambar don saita guntu zuwa 9600 baud shine:
- outportb (BASEADDR, 0x0C);
- waje (BASEADDR +1,0);
Mataki na farko na biyu shine saita Rijistar Kula da Layi a Base Address +3. Wannan rijistar tana ayyana tsayin kalma, tsai da tsai, daidaito, da DLAB.
- Bits 0 da 1 suna sarrafa tsayin kalma kuma suna ba da damar tsayin kalma daga 5 zuwa 8 ragowa. Ana fitar da saitunan Bit ta hanyar cire 5 daga tsawon kalmar da ake so.
- Bit 2 yana ƙayyade adadin tasha. Ana iya samun ko dai guda ɗaya ko biyu tasha. Idan an saita Bit 2 zuwa 0, za a sami ɗan tasha ɗaya. Idan an saita Bit 2 zuwa 1, za a sami raguwa biyu tasha.
- Bits 3 zuwa 6 ikon sarrafawa da kunna karya. Ba a saba amfani da su don sadarwa kuma yakamata a saita su zuwa sifili.
- Bit 7 shine DLAB da aka tattauna a baya. Dole ne a saita shi zuwa sifili bayan an loda mai rarraba ko kuma babu sadarwa.
Umurnin C don saita UART don kalmar 8-bit, babu daidaituwa, kuma bit tasha ɗaya shine:
outportb (BASEADDR +3, 0x03)
Mataki na uku na jerin farawa shine saita Rijistar Kula da Modem a Base Address +4. Wannan rijistar tana sarrafa ayyuka akan wasu allo. Bit 1 shine Neman Aika (RTS) sarrafa bit. Wannan bit yakamata a bar shi ƙasa har zuwa lokacin watsawa. (Lura: Lokacin aiki a cikin yanayin RS485 na atomatik, yanayin wannan bit ba shi da mahimmanci.) Bits 2 da 3 sune abubuwan da aka zaɓa na mai amfani. Ana iya yin watsi da Bit 2 akan wannan allo. Ana amfani da Bit 3 don ba da damar katsewa kuma yakamata a saita shi sama idan ana son amfani da mai karɓar mai katsewa. Matakin farawa na ƙarshe shine a zubar da buffers mai karɓa. Kuna yin wannan tare da karantawa guda biyu daga buffer mai karɓa a Base Address +0. Lokacin da aka gama, UART yana shirye don amfani.
liyafar
Ana iya gudanar da liyafar ta hanyoyi biyu: jefa ƙuri'a da katsewa. Lokacin jefa kuri'a, liyafar ana cika ta ta koyaushe karanta Lissafin Matsayin Layi a Base Address +5. Ana saita Bit 0 na wannan rijistar babba a duk lokacin da aka shirya bayanai don karantawa daga guntu. Kuri'a ba ta da tasiri a yawan adadin bayanai da ke sama saboda shirin ba zai iya yin wani abu ba lokacin da ake jefa kuri'a ko kuma ana iya rasa bayanai. Rukunin lambar mai zuwa yana aiwatar da madauki na jefa ƙuri'a kuma yana amfani da ƙimar 13, (komawar karusar ASCII) azaman alamar ƙarshen watsawa:
- do
- {
- yayin da (!(inportb(BASEADDR +5) & 1)); /* Jira har sai an shirya bayanai*/ data[i++]= inportb(BASEADDR);
- }
- yayin da (bayanai[i]! = 13); /*Yana karanta layi har sai an sake rubutawa mara kyau*/
Ya kamata a yi amfani da hanyoyin sadarwa masu katsewa a duk lokacin da zai yiwu kuma ana buƙata don yawan ƙimar bayanai. Rubutun mai karɓar katsewa bai fi rikitarwa fiye da rubuta mai karɓa ba amma ya kamata a kula yayin sakawa ko cire mai sarrafa katsewar don guje wa rubuta kuskuren katsewa, kashe katsewar kuskure, ko kashe katsewa na tsawon lokaci mai tsawo.
Mai kula da shi zai fara karanta Rijistar Shaida Ta Katse a Base Address +2. Idan katsewa don Samun Bayanan da aka karɓa ne, mai sarrafa sai ya karanta bayanan. Idan babu katsewa yana jiran, sarrafawa yana fita na yau da kullun. A sample handler, wanda aka rubuta a cikin C, shine kamar haka:
- karantawa = inportb (BASEADDR +2);
- idan (karantawa & 4) /* Za a saita dawowa zuwa 4 idan bayanai suna samuwa*/ data[i ++]=inportb(BASEADDR); waje (0x20,0x20); /* Rubuta EOI zuwa 8259 Mai Kula da Katsewa * / dawowa;
Watsawa
RS485 watsawa abu ne mai sauƙi don aiwatarwa. Siffar AUTO tana ba da damar watsawa ta atomatik lokacin da bayanai ke shirye don aikawa don haka ba a buƙatar hanyar kunna software.
Babi na 6: Ayyukan Fil na Haɗi
Ana amfani da mashahurin mai haɗin haɗin ƙasa mai 9-pin D (namiji) don yin hulɗa da layin sadarwa. Masu haɗin suna sanye take da 4-40 zaren tsayawa (kulle dunƙule mata) don ba da sauƙi. Mai haɗin haɗin da aka yiwa lakabin P2 don COM A ne, kuma P3 shine COM B.
Tebur 6-1: P2/P3 Connector Pin Assignments
| Pin A'a. | Saukewa: RS422 Waya Hudu | Saukewa: RS485 Waya Biyu |
| 1 | Rx- | |
| 2 | Tx + | T/Rx+ |
| 3 | Tx- | T/Rx- |
| 4 | Ba A Amfani | |
| 5 | keɓe GND | keɓe GND |
| 6 | Ba A Amfani | |
| 7 | Ba A Amfani | |
| 8 | Ba A Amfani | |
| 9 | Rx + |
Lura
Idan naúrar tana da alamar CE, to dole ne a yi amfani da igiyar igiyar igiyar igiyar igiyar igiyar igiyar igiyar igiyar igiyar igiyar ruwa (garkuwar igiyar igiyar da aka kafa a mahaɗin, igiyoyin murɗaɗɗen garkuwa, da sauransu).
Comments na Abokin ciniki
Idan kun fuskanci wata matsala game da wannan jagorar ko kuma kawai kuna son ba mu ra'ayi, da fatan za a yi mana imel a: manuals@accesio.com. Da fatan za a yi cikakken bayani game da kowane kurakurai da kuka samu kuma ku haɗa da adireshin imel ɗin ku domin mu iya aiko muku da kowane sabuntawar hannu.
10623 Roselle Street, San Diego CA 92121 Tel. (858) 550-9559 FAX (858) 550-7322 www.accesio.com
Sanarwa
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GARGADI!!
KYAUTATA HADA KA CUTAR DA CABING NA FARUWA TARE DA KASHE WUTAR COMPUTER. KULLUM KASHE WUTAR KWAMFUTA KAFIN SHIGA BOARD. HADA DA CUTAR DA Cables, KO SANYA BOARD A CIKIN TSARIN TARE DA KWAMFUTA KO WUTAR KWAMFUTA KAN IYA SANYA RAINA GA HUDUBAR I/O KUMA ZAI RUSHE DUK WARRANTIES, WANDA AKE NUFI KO BAYYANA.
Garanti
Kafin jigilar kaya, ana bincika kayan aikin ACCES sosai kuma ana gwada su zuwa takamaiman ƙayyadaddun bayanai. Koyaya, idan gazawar kayan aiki ta faru, ACCES tana tabbatar wa abokan cinikinta cewa za a sami sabis na gaggawa da tallafi. Duk kayan aikin da ACCES suka ƙera waɗanda aka gano ba su da lahani za a gyara su ko a maye su bisa la'akari masu zuwa.
Sharuɗɗa da Sharuɗɗa
Idan ana zargin naúrar da gazawa, tuntuɓi Sashen Sabis na Abokin Ciniki na ACCES. Yi shiri don ba da lambar ƙirar naúrar, lambar serial, da bayanin alamar gazawa. Muna iya ba da shawarar wasu gwaje-gwaje masu sauƙi don tabbatar da gazawar. Za mu sanya lambar izini na dawowa (RMA) wacce dole ne ta bayyana akan alamar fakitin dawowa. Duk raka'a/bangaren yakamata a cika su da kyau don sarrafawa kuma a dawo dasu tare da an riga an biya kaya zuwa cibiyar sabis na ACCES, kuma za'a mayar da su zuwa wurin abokin ciniki/masu amfani da kaya da aka rigaya aka biya kuma a biya su.
Rufewa
- Shekaru Uku Na Farko: Za a gyara naúrar/ɓangaren da aka dawo da/ko maye gurbinsu a zaɓi na ACCES ba tare da cajin aiki ko sassan da ba a keɓe ta garanti ba. Garanti yana farawa tare da jigilar kayan aiki.
Bayan Shekaru: A duk tsawon rayuwar kayan aikin ku, ACCES a shirye take don ba da sabis na kan layi ko a cikin dasa a farashi mai ma'ana kamar na sauran masana'antun a cikin masana'antar.
Kayan ACCES Ba Ya Kera su
Kayan aikin da aka bayar amma ba ACCES ya kera su ba suna da garanti kuma za a gyara su bisa ga sharuɗɗa da sharuɗɗan garantin masana'antun kayan aiki.
Gabaɗaya
A ƙarƙashin wannan Garanti, alhakin ACCES yana iyakance ga maye gurbin, gyarawa ko bayar da kiredit (a shawarar ACCES) ga kowane samfuran da aka tabbatar da rashin lahani yayin lokacin garanti. Babu wani hali da ACCES ke da alhakin lalacewa ko lalacewa ta musamman da ta taso daga amfani ko rashin amfani da samfurin mu. Abokin ciniki yana da alhakin duk cajin da aka samu ta hanyar gyare-gyare ko ƙari ga kayan aikin ACCES da ACCES ba ta amince da su a rubuce ba ko, idan a cikin ra'ayi na ACCES kayan aikin sun kasance marasa amfani. "Amfani mara kyau" don dalilai na wannan garanti an bayyana shi azaman duk wani amfani da aka fallasa kayan aikin zuwa gareshi ban da ƙayyadaddun amfani ko aka yi niyya kamar yadda shaida ta siye ko wakilcin tallace-tallace. Baya ga abin da ke sama, babu wani garanti, bayyana ko bayyanawa, da zai shafi kowane irin kayan aikin da ACCES ke samarwa ko siyar.
Tsarin Tabbatarwa
^ssured Systems babban kamfani ne na fasaha tare da abokan ciniki na yau da kullun na 1,500 a cikin ƙasashe 80, suna tura tsarin sama da 85,000 zuwa tushen abokin ciniki daban-daban a cikin shekaru 12 na kasuwanci. Muna ba da ingantacciyar ƙididdiga mai ƙarfi da ƙima, nuni, hanyar sadarwa da hanyoyin tattara bayanai zuwa sassan da aka haɗa, masana'antu, da dijital-na-gida kasuwa.
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www.assured-systems.com | sales@assured-systems.com
Takardu / Albarkatu
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TABBAS SYSTEMS 104-ICOM-2S da 104-COM-2S Samun Katin Serial Serial IO [pdf] Manual mai amfani 104-ICOM-2S da 104-COM-2S, 104-ICOM-2S, 104-ICOM-2S Access IO Serial Serial Card, Samun damar IO keɓaɓɓen Serial Card, Keɓaɓɓen Serial Card, Serial Card, Kati |
