DIGILENT PmodRS485 Nkwukọrịta dịpụrụ adịpụ dị elu
Akwụkwọ ntuziaka PmodRS485TM
Emegharịrị February 9, 2021
Akwụkwọ ntuziaka a na-emetụta PmodRS485 rev. B
1300 Henley Court Pullman, WA 99163
509.334.6306 www.digilentinc.com
Ngwaahịa gafereview
Digilent PmodRS485 na-enye mgbama na ikewapụ ike maka ahịrị nkwurịta okwu dị elu na-eji usoro nzikọrịta ozi RS485.
Njirimara ngwaahịa
- Signal na ikewapụ iche
- Na-akwado usoro nzikọrịta ozi serial RS-485 na RS-422
- Nyefee data ziri ezi n'ofe dị anya
- Ọnụego mbufe data ruru 16Mbit/s
Nkọwa ọrụ
PmodRS485 na-eji Ngwaọrụ Analog ADM2582E iji kwado usoro nkwurịta okwu RS-485 na RS-422 n'etiti ngwaọrụ na gburugburu nwere nnukwu mkpọtụ eletrik. ADM2852E na-enye ma mgbaama na ikewapụ ike na-enye ohere maka ịnyefe data ziri ezi n'ofe dị anya. Enwere ike nweta ọnụego nnyefe data nke 16 Mbit/s.
Mmekọrịta na Pmod
PmodRS485 na-ekwurịta okwu na bọọdụ nnabata site na protocol UART. Iji nyefee data, a ga-adọtarịrị ahịrị Driver Enable (DE) na ọkwa mgbagha dị elu voltage steeti; N'otu aka ahụ, iji nweta data, a ga-eburịrị ahịrị Nweta Enable (~ RE) gaa n'ọkwa mgbagha dị ala volta.tage steeti.
Tebụl nkọwapụta: Pmod nkụnye eji isi mee J2
| Ntụtụ | Signal | Nkọwa |
|---|---|---|
| 1 | ~RE | Nata Kwado |
| 2 | NXD | Nyefee data |
| 3 | RxD | Nweta data |
| 4 | DE | Kwado ọkwọ ụgbọala |
| 5 | GND | Ala Na-enye Ike |
| 6 | VCC | Nnweta ike dị mma (3.3V/5V) |
Ịghasa ọnụ ọnụ
| Signal | A | B | Z | Y |
|---|---|---|---|---|
| Nkọwa | Ntinye A | Ntinye B | Mpụta Z | Mpụta Y |
Ịkpọnye ọtụtụ ngwaọrụ PmodRS485
Enwere ike ijikọ ọtụtụ ngwaọrụ PmodRS485 ọnụ ruo 256 ọnụ na mkpokọta. Mgbe ejikọrọ PmodRS485 abụọ, JP1 kwesịrị ịkwanye na ngwaọrụ abụọ ahụ. Mgbe ejikọrọ ihe karịrị PmodRS485s abụọ, JP1 ga-ebu naanị na ngwaọrụ abụọ ahụ na njedebe njedebe nke waya ahụ, a ga-edobekwa stubs nke isi ahịrị dị mkpụmkpụ dị ka o kwere mee.
Nkwurịta okwu ọkara-duplex
Nkwurịta okwu duplex zuru ezu
Ịnye ọkụ
Ike mpụga ọ bụla etinyere na PmodRS485 ga-abụrịrị n'ime 3.0V na 5.5V; Otú ọ dị, a na-atụ aro na a na-arụ ọrụ Pmod na 3.3V.
gafereview
Digilent PmodRS485 na-enye mgbaama na ikewapụ ike maka ahịrị nkwurịta okwu dị elu na-eji usoro nzikọrịta ozi RS-485.
Atụmatụ gụnyere
- Modul nkwukọrịta RS-485 dị elu
- Ebe dịpụrụ adịpụ RS-485/RS-422 maka ojiji na gburugburu mkpọtụ
- Oke data kacha 16Mbps
- Jikọọ ọnụ ọnụ 256 n'otu ụgbọ ala
- Nkwurịta okwu ọkara ma ọ bụ duplex dị iche
- Mkpuchi ọkụ na ± 15kV ESD nchebe
- 6-pin Pmod ọdụ ụgbọ mmiri nwere interface UART
- Ọbá akwụkwọ na example koodu dị na resource center
Nkọwa ọrụ
PmodRS485 na-eji Ngwaọrụ Analog ADM2582E iji kwado usoro nkwurịta okwu RS-485 na RS-422 n'etiti ngwaọrụ na gburugburu nwere nnukwu mkpọtụ eletrik. ADM2852E na-enye ma mgbaama na ikewapụ ike na-enye ohere maka ịnyefe data ziri ezi n'ofe dị anya. Enwere ike nweta ọnụego nnyefe data nke 16 Mbit/s.
Mmekọrịta na Pmod
- PmodRS485 na-ekwurịta okwu na bọọdụ nnabata site na protocol UART. Iji nyefee data, a ga-adọtarịrị ahịrị Enable Driver na ọkwa mgbagha dị elu voltage steeti; N'otu aka ahụ, iji nweta data, a ga-eburịrị ahịrị Nweta Enable gaa n'ọkwa mgbagha dị ala voltage steeti.
- Tebụl eziokwu na-egosi ọkwa nke ntụtụ dị iche iche nke PmodRS485 ka enyere n'okpuru:
Akwụkwọ ntuziaka PmodRS485™
| Ntinye | Mpụta | |
| AB Voltage Ọdịiche | ~RE | RxD |
| ≥ -0.03V | Obere ma ọ bụ Ejikọtaghị | Elu |
| ≤ -0.2V | Obere ma ọ bụ Ejikọtaghị | Dị ala |
| -0.2V < AB <-0.03V | Obere ma ọ bụ Ejikọtaghị | Echegbula |
| Ntinye meghere | Obere ma ọ bụ Ejikọtaghị | Elu |
| Echegbula | Elu | Mmetụta dị elu |
Tebụl 1. Ịnata
| Ntinye | Mpụta | ||
| DE | NXD | Y | Z |
| Elu | Elu | Elu | Dị ala |
| Elu | Dị ala | Dị ala | Elu |
| Dị ala | Echegbula | Mmetụta dị elu | Mmetụta dị elu |
Tebụl 2. Na-ebufe
| Ntụtụ | Signal | Nkọwa |
| 1 | ~RE | Nata Kwado |
| 2 | NXD | Nyefee data |
| 3 | RxD | Nweta data |
| 4 | DE | Kwado ọkwọ ụgbọala |
| 5 | GND | Ala Na-enye Ike |
| 6 | VCC | Nnweta ike dị mma (3.3V/5V) |
Tebụl 3. Tebụl nkọwa pinout: Pmod nkụnye eji isi mee J2
| Signal | Nkọwa |
| A | Ntinye A |
| B | Ntinye B |
| Z | Mpụta Z |
| Y | Mpụta Z |
Isiokwu 4. Ịghasa ọnụ ọnụ
Ihe osise ngọngọ ọrụ PmodRS485
Enwere ike ijikọ ọtụtụ ngwaọrụ PmodRS485 ọnụ ruo 256 ọnụ na mkpokọta. Mgbe ejikọrọ PmodRS485 abụọ, JP1 kwesịrị ịkwanye na ngwaọrụ abụọ ahụ. Mgbe ejikọrọ ihe karịrị PmodRS485s abụọ, JP1 ga-ebu naanị na ngwaọrụ abụọ ahụ na njedebe njedebe nke waya ahụ, a ga-edobekwa stubs nke isi ahịrị dị mkpụmkpụ dị ka o kwere mee.
Nkwurịta okwu ọkara-duplex
- Ike mpụga ọ bụla etinyere na PmodRS485 ga-abụrịrị n'ime 3.0V na 5.5V; Otú ọ dị, a na-atụ aro na a na-arụ ọrụ Pmod na 3.3V.
Akụkụ anụ ahụ
A na-ekewa ntụtụ ndị dị na nkụnye eji isi mee ihe 100 mil iche. PCB dị sentimita 1.5 n'ogologo n'akụkụ ya na ntụtụ dị na nkụnye eji isi mee na 0.8 sentimita asatọ n'ogologo n'akụkụ ya na-adaba na nkụnye eji isi mee.
- Nwebiisinka Digilent, Inc. Ikike niile echekwabara.
- Ngwaahịa na aha ụlọ ọrụ ndị ọzọ akpọtụrụ nwere ike ịbụ ụghalaahịa nke ndị nwe ha. Arrow.com.
1300 Henley Court
- Pullman, WA 99163
- 509.334.6306
- www.digilentinc.com
Akwụkwọ / akụrụngwa
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DIGILENT PmodRS485 Nkwukọrịta dịpụrụ adịpụ dị elu [pdf] Akwụkwọ ntuziaka onye ọrụ PmodRS485 Nkwukọrịta dịpụrụ adịpụ nke Ọsọ dị elu, PmodRS485, Nkwukọrịta dịpụrụ adịpụ ọsọ ọsọ, Nkwukọrịta dịpụrụ adịpụ, Nkwukọrịta |