DIGILENT PmodCMPS Igalelo lePmods Sensors Incwadi yoMnikazi
Ngaphezuluview
I-Digilent PmodCMPS ibonisa izinto ezidumileyo Honeywell HMC5883L Ikhampasi yedijithali ye-3-axis kwaye inokongeza ufundo lwesihloko sekhampasi kuyo nayiphi na ibhodi ye-Digilent host enojongano lwe-I²C.
I-PmodCMPS.
Iimpawu ziquka:
- Ikhampasi yedijithali ye-3-axis
- I-2 milli-gauss Resolution Field in ± 8 i-gauss fields
- 160 Hz ubuninzi bezinga lokuphuma kwedatha
- Izichasi zokutsalwa ngokuzikhethela ze-SCL kunye nezikhonkwane ze-SDA
- Ubungakanani bePCB encinci yoyilo oluguquguqukayo 0.8" × 0.8" (2.0 cm × 2.0 cm)
- I-2 × 4-pin isinxibelelanisi esine-interface ye-I2C
- Uyalandela Digilent Pmod Interface Specification
- Ithala leencwadi kunye ne-example ikhowudi ekhoyo kwi iziko lovimba
Inkcazo esebenzayo
I-PmodCMPS isebenzisa i-Honeywell's HMC5883L ngeteknoloji ye-Anisotropic Magnetoresistive (AMR). NgesiNgesi esicacileyo, oku kuthetha ukuba abenzi boluvo abathathu (enye kwisalathiso ngasinye sokulungelelanisa) banokuphazamiseka okuncinci omnye komnye ukuze idatha echanekileyo inokufunyanwa kwi-Pmod.
Ukunxibelelana nePmod
I-Pmod CMPS inxibelelana nebhodi yokusingatha nge-I²C protocol. Jumpers JP1 kunye JP2 zibonelela ozikhethelayo 2.2kΩ ukutsalwa-up resistors ukusebenzisa Data Uthotho kunye nemigca Clock Clock. Idilesi ye-7-bit yale chip ebhodini ngu-0x1E, eyenza idilesi ye-8-bit yomyalelo wokufunda 0x3D kunye ne-0x3C yomyalelo wokubhala.
Ngokungagqibekanga, i-PmodCMPS iqala kwimowudi yoMlinganiselo oNye ukwenzela ukuba ikhampasi ithathe umlinganiselo omnye, isete ipini yokuLungela iDatha ephezulu, kwaye emva koko izibeke kwi-Idle Mode. Ngelixa i-Idle Mode, imithombo emikhulu yokusetyenziswa kwamandla (akumangalisi) ikhubazekile, njenge-ADC yangaphakathi eqokelela ivolthi.tage imilinganiselo. Nangona kunjalo, usenakho ukufikelela kuzo zonke iirejista ngexabiso lazo ledatha yamva nje ngebhasi ye-I²C. Ukutshintsha i-PmodCMPS ukusuka kwimodi engasebenziyo ubuyele kwimowudi yoMlinganiselo oNye okanye imowudi yoMlinganiso oqhubekayo, umsebenzisi kufuneka abhalele kwiRejista yeModi (0x02).
Xa ufunda idatha kwi-Pmod CMPS, zonke iirejista zedatha ezintandathu, ezihambelana ne-bytes ephezulu nangaphantsi ye-Cartesian coordinate direction direction, kufuneka ifundwe. Ekubeni isalathisi sedilesi yerejista yangaphakathi inyuka ngokuzenzekelayo emva kokuba irejista ifundwe ngempumelelo, kunokwenzeka ukufunda kuzo zonke iirejista ezintandathu ngomyalelo omnye. Umzekeloampukuba oku kunokujongeka njani kunikwe ngezantsi:
Uluhlu loku-1. Umyalelo kunye nee-bytes zedilesi.
| Yalela byte | Idilesi byte | ||||||||||||||||
| 0 | 0 | 1 | 1 | 1 | 1 | 0 | 1 | (ACK) | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | (ACK) |
| I-MSB X | I-LSB X | ||||||||||||||||
| SX | SX | SX | SX | sb | I-MSB | b9 | b8 | (ACK) | b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 | (ACK) |
| MSB Z | I-LSB Z | ||||||||||||||||
| SX | SX | SX | SX | sb | I-MSB | b9 | b8 | (ACK) | b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 | (ACK) |
| MSB Y | LSB Y | ||||||||||||||||
| SX | SX | SX | SX | sb | I-MSB | b9 | b8 | (ACK) | b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 | (YEKA) |
Phawula: I-SX imele ulwandiso lophawu lwebit yophawu (sb).
Itheyibhile yeNkcazelo yePinout
Uluhlu loku-1. I-Connector J1: Iinkcazo zePin njengoko zibhaliwe kwi-Pmod.
| Okubhalwe ngasentla kwekhasi J1 | ||
| Izikhonkwane | Umqondiso | Inkcazo |
| 1 & 5 | I-SCL | Ikloko yothotho |
| 2 & 6 | SDA | Idatha yothotho |
| 3 & 7 | GND | Umhlaba woBonelelo lwaMandla |
| 4 & 8 | VCC | Ubonelelo lwaMandla (3.3V) |
| Okubhalwe ngasentla kwekhasi J2 | ||
| Iphini | Umqondiso | Inkcazo |
| 1 | YOMZA | Data Ready |
| 2 | GND | Umhlaba woBonelelo lwaMandla |
| Ijumper JP1 | ||
| Ilizwe elilayishiwe | Umgca we-SDA usebenzisa i-2.2kΩ ukutsalela phezulu | |
| Ijumper JP2 | ||
| Ilizwe elilayishiwe | Umgca we-SCL usebenzisa i-2.2kΩ ukutsala-up resistor | |
I-Pmod CMPS ikwabonelela ngemo yokuzivavanya ukunceda ukulungelelanisa nayiphi na idatha efunyenweyo kwimodyuli.
Nawaphi na amandla angaphandle asetyenziswa kwi-PmodCMPS kufuneka abe ngaphakathi kwe-2.16V kunye ne-3.6V; ngoko ke, xa usebenzisa iiheader zePmod kwiibhodi zeDigilent system, unikezelo voltagkufuneka ibe kwi-3.3V.
Ubungakanani bomzimba
Izikhonkwane ezikwintloko yephini zihlulwe nge-100 mil ngaphandle. I-PCB yi-intshi ye-0.8 ubude emacaleni ahambelana nezikhonkwane kwi-header ye-pin kunye ne-0.8 i-intshi ubude emacaleni e-perpendicular kwi-pin header.
Copyright Digilent, Inc.
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Ikhutshelwe kwi Arrow.com.
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Pullman, WA 99163
509.334.6306
www.digilentinc.com
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DIGILENT PmodCMPS Input Pmods Sensors [pdf] Incwadi yoMnini IiSensors zePmod ze-PmodCMPS, ii-PmodCMPS, iiSensors ze-Pmods ze-Input, ii-Pmods Sensors, iiSensors |
