DIGILENT PmodCMPS Input Pmods Sensors Manual
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Digilent PmodCMPS e fana ka tse tsebahalang Honeywell HMC5883L 3-axis digital compass mme e ka kenya 'malo oa lihlooho tsa compass ho board efe kapa efe ea Digilent e nang le sebopeho sa I²C.
PmodCMPS.
Likarolo li kenyelletsa:
- 3-axis digital compass
- Qeto ea Tšimo ea 2 milli-gauss masimong a ± 8 gauss
- 160 Hz sekhahla se phahameng sa tlhahiso ea data
- Lihanyetsi tsa boikhethelo tsa ho hula bakeng sa lithakhisa tsa SCL le SDA
- PCB e nyane bakeng sa meralo e tenyetsehang 0.8“ × 0.8” (2.0 cm × 2.0 cm)
- Sehokelo sa 2 × 4-pin se nang le I2C interface
- E latela Tlhaloso ea Digilent Pmod Interface
- Laebrari le mohlalaample code fumaneha ka setsi sa mehloli
Tlhaloso ea Ts'ebetso
PmodCMPS e sebelisa Honeywell's HMC5883L ka theknoloji ea Anisotropic Magnetoresistive (AMR). Ka Senyesemane se hlakileng, sena se bolela hore li-sensor tse tharo (e le 'ngoe bakeng sa tataiso e' ngoe le e 'ngoe) li na le tšitiso e nyane haholo e le hore data e nepahetseng e ka fumanoa ho Pmod.
Ho kopana le Pmod
Pmod CMPS e buisana le boto e amohelang batho ka protocol ea I²C. Li-Jumpers JP1 le JP2 li fana ka lihanyetsi tse hulang tsa 2.2kΩ tseo u ka li sebelisang bakeng sa Line Data le Serial Clock. Aterese ea 7-bit bakeng sa chip ena e holim'a board ke 0x1E, e etsa aterese ea 8-bit bakeng sa taelo ea ho bala 0x3D le 0x3C bakeng sa taelo ea ho ngola.
Ka nako e sa lekanyetsoang, PmodCMPS e qala ka mokhoa oa Tekanyo e le 'Ngoe e le hore sesupa-tsela se nke tekanyo e le' ngoe, e behe phini ea Data Ready holimo, ebe e ipeha Modeng oa Idle. Ha u ntse u le Idle Mode, mehloli e meholo ea tšebeliso ea matla e (ha ho makatse) e holofetse, joalo ka ADC e ka hare e bokellang vol.tage litekanyo. Leha ho le joalo, u ntse u ka khona ho fumana lirekoto tsohle ka boleng ba data ba morao-rao ka bese ea I²C. Ho fetola PmodCMPS ho tloha mokhoeng o sa sebetseng ho khutlela ho Mokhoa o le Mong oa Tekanyo kapa Tekanyo e Tsoelang Pele, mosebelisi o tlameha ho ngolla Rejistara ea Mokhoa (0x02).
Ha u bala lintlha tse tsoang ho Pmod CMPS, lirekoto tsohle tse tšeletseng tsa data, tse tsamaellanang le li-byte tse ka holimo le tse tlase tsa tataiso e 'ngoe le e' ngoe ea Cartesian coordinate, li tlameha ho baloa. Kaha pointer ea aterese ea kahare e ikemela ka bo eona ka mor'a hore ngoliso e baloe ka katleho, hoa khoneha ho bala ho tsoa lirejiseteng tsohle tse tšeletseng ka taelo e le 'ngoe. Examphore na sena se ka shebahala joang se fanoe ka tlase:
Lethathamo la 1. Laela le aterese li-byte.
| Laela byte | Aterese byte | ||||||||||||||||
| 0 | 0 | 1 | 1 | 1 | 1 | 0 | 1 | (ACK) | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | (ACK) |
| MSB X | LSB X | ||||||||||||||||
| SX | SX | SX | SX | sb | MSB | b9 | b8 | (ACK) | b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 | (ACK) |
| MSB Z | LSB Z | ||||||||||||||||
| SX | SX | SX | SX | sb | MSB | b9 | b8 | (ACK) | b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 | (ACK) |
| MSB Y | LSB Y | ||||||||||||||||
| SX | SX | SX | SX | sb | MSB | b9 | b8 | (ACK) | b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 | (EMA) |
Hlokomela: SX e emetse katoloso ea lets'oao la lets'oao (sb).
Letlapa la Tlhaloso ea Pinout
Lethathamo la 1. Sehokelo J1: Litlhaloso tsa Pin joalo ka ha li ngotsoe ho Pmod.
| Sehlooho sa J1 | ||
| Lithako | Letshwao | Tlhaloso |
| 1 le 5 | SCL | Seriba oache |
| 2 le 6 | SDA | Lintlha tsa serial |
| 3 le 7 | GND | Sebaka sa Phepelo ea Matla |
| 4 le 8 | VCC | Phepelo ea Matla (3.3V) |
| Sehlooho sa J2 | ||
| Pin | Letshwao | Tlhaloso |
| 1 | TIMA | Lintlha li Lokisitsoe |
| 2 | GND | Sebaka sa Phepelo ea Matla |
| Jumper JP1 | ||
| Loaded State | SDA line e sebelisa 2.2kΩ hula-up resistor | |
| Jumper JP2 | ||
| Loaded State | SCL line e sebelisa 2.2kΩ hula-up resistor | |
Pmod CMPS e boetse e fana ka mokhoa oa ho itlhahloba ho thusa ho lekanya data efe kapa efe e amoheloang ho tsoa mojuleng.
Matla leha e le afe a ka ntle a sebelisoang ho PmodCMPS a tlameha ho ba ka hare ho 2.16V le 3.6V; ka hona, ha u sebelisa lihlooho tsa Pmod ho liboto tsa tsamaiso ea Digilent, phepelo ea voltage tlameha ho ba 3.3V.
Litekanyo tsa 'Mele
Lithakhisa tsa hlooho ea phini li arohane ka 100 mil. PCB e bolelele ba lisenthimithara tse 0.8 ka mahlakoreng a bapileng le lithakhisa tsa hlooho ea phini le bolelele ba lisenthimithara tse 0.8 mahlakoreng a pota-potileng hlooho ea phini.
Copyright Digilent, Inc.
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E jarollotsoe ho tsoa Arrow.com.
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DIGILENT PmodCMPS Input Pmods Sensors [pdf] Buka ea Mong'a PmodCMPS Input Pmods Sensors, PmodCMPS, Input Pmods Sensors, Pmods Sensors, Pmods Sensors |
