ams AS5048 I-14-bit ye-XNUMX-bit ye-Rotary Position Sensor ene-Digital engile kunye ne-PWM Output
Ulwazi lweMveliso
I-AS5048 yi-14-bit ye-rotary position sensor ene-angle yedijithali (i-interface) kunye nemveliso ye-PWM. Yenziwe yi-ams OSRAM Group kwaye ipapashwe ngu Arrow.com. Inzwa isetyenziselwa ukulinganisa indawo yento ejikelezayo kwaye inika imilinganiselo echanekileyo ye-angle.
Ibhodi ye-adapter ye-AS5048 yisekethe evumela uvavanyo olulula kunye novavanyo lwe-AS5048 sensor ngaphandle kwesidingo sokwakha uvavanyo oluhlukileyo okanye i-PCB. Ibhodi ye-adapter inokudityaniswa kwi-microcontroller okanye i-AS5048-Demoboard njengesixhobo sangaphandle.
Inkcazo yeBhodi
I-AS5048 Adapterboard ibonisa uhlobo lwe-interface A (SPI) okanye i-B (I2C), i-4 x 2.6mm imingxuma yokufaka, kunye ne-P1 isixhumi. Inika indlela efanelekileyo yokudibanisa kunye nokusebenzisana ne-AS5048 sensor.
Imiyalelo yokunyuka
Ukunyusa ibhodi yeadaptha ye-AS5048, landela la manyathelo:
- Beka umazibuthe wediametric ngaphezulu okanye ngaphantsi kwesivamvo sendawo ye-AS5048.
- Qinisekisa ukuba umazibuthe ugxile kumbindi wepakethe enonyamezelo lwe-0.5mm.
- Gcina i-airgap phakathi kwemagnethi kunye ne-encoder casing kuluhlu lwe-0.5mm ukuya kwi-2mm.
- Sebenzisa imathiriyeli engeyiyo i-ferromagnetic efana nobhedu, ubhedu, ialuminiyam, okanye intsimbi engatyiwayo yesibambi semagnethi.
Ukulandela le miyalelo kuya kuqinisekisa ukusebenza ngokufanelekileyo kwebhodi yeadaptha ye-AS5048 kunye nemilinganiselo echanekileyo yendawo.
Imbali yohlaziyo
Inkcazo ngokubanzi
I-AS5048 ilula ukusebenzisa i-360° isivamvo se-engile ye-angle kunye ne-14-bit yesisombululo esiphezulu semveliso. Ukulinganisa i-angle, kuphela i-magnetic pole-pole magnet, ejikelezayo ngaphaya kombindi we-chip, iyadingeka.
Umazibuthe unokubekwa ngaphezulu okanye ngaphantsi kwe-IC. Oku kuboniswe kuMfanekiso 1.
Umzobo 1: iMagnetic Position Sensor AS5048 + Magnet
Ibhodi yeadaptha ye-AS5048
Ibhodi yeadaptha ye-AS5048 yisekethe elula evumela uvavanyo kunye novavanyo lwe-AS5048 inzwa yendawo yemagnethi ngokukhawuleza ngaphandle kokwakha uvavanyo lokuvavanya okanye i-PCB.
Inkcazo yebhodi
I-AS5048 Adapterboard yisekethe elula evumela uvavanyo kunye novavanyo lwe-AS5048 encoder ejikelezayo ngokukhawuleza ngaphandle kokwakha uvavanyo lovavanyo okanye i-PCB.
I-PCB inokudityaniswa kwi-microcontroller okanye kwi-AS5048- Idemobhodi njengesixhobo sangaphandle.
Umzobo 2: AS5048 Adapterboard
Ukunyuswa kwebhodi yeadaptha ye-AS5048
Umazibuthe wediametric kufuneka ubekwe ngaphezulu phantsi kwe-AS5048 sensor yendawo, kwaye kufuneka ibekwe embindini wepakethe ngonyamezelo lwe-0.5mm.
I-airgap phakathi kwemagnethi kunye ne-encoder casing kufuneka igcinwe kuluhlu lwe-0.5mm ~ 2mm. Isibambi semagnethi akufuneki sibe yi-ferromagnetic. Izinto ezinjengobhedu, ubhedu, i-aluminium, insimbi engenasici yizona zikhetho ezifanelekileyo ukwenza le nxalenye.
Umzobo 3: AS5048 - AB - ukunyuka kunye nobukhulu
Ibhodi yeadaptha ye-AS5048 kunye nepinout
Umzobo 4: AS5048 izixhumi zebhodi yeadaptha kunye ne-encoder pinout
Uluhlu 1: Inkcazo yephini
| I-Pin# Ibhodi | I-Pin# AS5 048 | Ibhodi yeeMpawu |
Inkcazo |
| iP1 – 1 | 13 | GND | Umhlaba wokubonelela |
| iP1 – 2 | 3 | A2/MISO | Inkosi yeSPI ngaphakathi/ngaphandle kwekhoboka; kwabelwane nge-I2C yokukhetha idilesi yephini 2 |
| iP1 – 3 | 4 | A1/MOSI | SPI inkosi ngaphandle / ikhoboka ngaphakathi; kwabelwane nge-I2C idilesi yokukhetha iphini loku-1 |
| iP1 – 4 | 2 | SCL/SCK | igalelo lewotshi ye-SPI; kwabelwane ngegalelo lewotshi ye-I2C |
| iP1 – 5 | 1 | I-SDA/CSn | Itshiphu yeSPI khetha-esebenzayo ephantsi; kwabelwane nge-I2C iphini yedatha |
| iP1 – 6 | 14 | PWM | Isiphumo sokumodareyitha kobubanzi be-Pulse |
|
iP1 – 7 |
12 |
3.3V |
Imveliso ye-3V-Regulator; ilawulwa ngaphakathi kwi-VDD. Qhagamshela kwi-VDD ye-3V yokubonelela ngevolthitage |
| iP1 – 8 | 11 | 5V | Ukubonelela ngevoltage |
Amatyala okusebenza
Esona sisombululo sigqibeleleyo nesichanekileyo se-MCU yokufunda i-engile yemagnethi lujongano lweSPI.
Imodi enye ye-SPI yeDivaysi, i-unidirectional - i-3 ucingo
I-AS5048-AB inokudityaniswa ngokuthe ngqo kwi-port ye-SPI esemgangathweni ye-microcontroller. Ubuncinci obufunekayo boxhulumaniso kunxibelelwano lwe-unidirectional (i-angle + alarm values reading) phakathi kwe-microcontroller kunye ne-AS5048 yi-MISO, SCK, SS/.
I-engile iya kufundwa kwi-16-bit SPI nganye yokudluliselwa. Jonga i-AS5048 kwitafile yerejista yeenkcukacha, bhalisa 3FFFh.
Umfanekiso 5: Ukusebenzisa i-SPI Interface unidirectional kunye ne-microcontroller
Imodi enye ye-SPI yesixhobo, i-bidirectional - i-4 ucingo
Ukuba ezinye iirejista ngaphezu kwamaxabiso e-angle kufuneka zifundwe, okanye ukuze ubhale iirejista kwi-AS5048, i-MOSI yomqondiso iyimfuneko.
Umfanekiso 6: Ukusebenzisa i-SPI Interface bidirectional ene-microcontroller
Izixhobo ezininzi ze-SPI Daisy chain mode
I-AS5048 inokubotshwa ngetyathanga, isebenzisa iingcingo ezi-4 kuphela kunxibelelwano lweSPI.
Kolu lungelelwaniso nge nx encoders, ulandelelwano luza kuqhutywa ngolu hlobo lulandelayo:
- I-MCU ibeka i-SS/ = 0
- I-MCU itshintsha i-nx 16-bit (umzekelo, FUNDA umyalelo FFFFh) kwitsheyini
- I-MCU imisela i-SS/=1
Ngelo xesha bonke abafaki khowudi be-nx bafumene umyalelo FUNDA FFFFh. - I-MCU imisela i-SS/=0
- I-MCU iyatshintsha nx 16-bit (umzekelo, umyalelo we-NOP 0000h)
- I-MCU imisela i-SS/=1
Ngelo xesha i-nx ye-16-bit efunyenwe kwi-MISO ngamaxabiso e-engile ye-nx.
Umfanekiso 7: Izixhobo ezininzi kwimowudi ye-Daisy chain
Ikhowudi yeFirmware
Le khowudi yomthombo ilandelayo ihambelana nesicelo socingo lwe-4
Umsebenzi woid spiReadData () uyafunda/ubhala amaxabiso ama-4 ukusuka kwi-AS5048
- Thumela umyalelo FUNDA AGC / Fumana ixabiso elingaziwa
- Thumela umyalelo FUNDA MAG / Fumana ixabiso AGC
- Thumela umyalelo FUNDA i-engile / Fumana ixabiso elithi MAG
- Thumela umyalelo NOP (akukho msebenzi) / Fumana ixabiso ANGLE
Ukuba i-ANGLE YOKUFUNDA iyimfuneko kuphela kwiluphu, inkqubo inokuncitshiswa ibe ngumgca omnye:
- Thumela umyalelo FUNDA i-engile / Fumana ixabiso Iengile
Umsebenzi ongatshintshiyo u8 spiCalcEvenParity(ixabiso elikufutshane) uyakhethwa, ubala umlinganiselo wesuntswana le-16-bit SPI umlambo.
/*!
******************************************************************
* Ufunda idatha yechip ngokusebenzisa ujongano lweSPI
*
* Lo msebenzi usetyenziselwa ukufunda ixabiso lecordic kwiitshiphusi ezixhasa iSPI
* ujongano.
******************************************************************
*/
#define SPI_CMD_READ 0x4000 /*!< iflegi ebonisa umzamo wokufunda xa usebenzisa ujongano lweSPI */
#chaza SPI_REG_AGC 0x3ffd /*!< irejista ye-agc xa usebenzisa iSPI */
#chaza SPI_REG_MAG 0x3ffe /*!< irejista yobungakanani xa usebenzisa iSPI */
#define SPI_REG_DATA 0x3fff /*!< irejista yedatha xa usebenzisa iSPI */
#define SPI_REG_CLRERR 0x1 /*!< cacisa irejista yempazamo xa usebenzisa iSPI */
spiReadData engekhoyo ()
{
u16 dat; // I-16-bit data buffer yonxibelelwano lwe-SPI
u16 magreg;
i-angle ye-short, i-aggreg;
ubyte agc;
ixabiso le-short;
bit alarmHi, alarmLo;
/* Thumela FUNDA umyalelo we-AGC. Idatha efunyenweyo ilahlwa kude: le datha ivela kumyalelo ongaphambili (ongaziwayo)*/
idat = SPI_CMD_READ | SPI_REG_AGC;
dat |= spiCalcEvenParity(dat) << 15;
spiTransfer((u8*)&dat, sizeof(u16));
/ /* Thumela FUNDA umyalelo we-MAG. Idatha efunyenweyo lixabiso le-AGC: le datha ivela kumyalelo ongaphambili (ongaziwayo)*/
idat = SPI_CMD_READ | SPI_REG_MAG;
dat |= spiCalcEvenParity(dat) << 15;
spiTransfer((u8*)&dat, sizeof(u16));
magreg = dat;
/* Thumela FUNDA ANGLE umyalelo. Idatha efunyenweyo lixabiso le-MAG, ukusuka kumyalelo ongaphambili */
idat = SPI_CMD_READ | SPI_REG_DATA;
dat |= spiCalcEvenParity(dat) << 15;
spiTransfer((u8*)&dat, sizeof(u16));
aggreg = dat;
/* Thumela umyalelo we-NOP. Idata efunyenweyo lixabiso ANGLE, ukusuka kumyalelo ongaphambili */
idat = 0x0000; // Umyalelo we-NOP.
spiTransfer((u8*)&dat, sizeof(u16));
i-engile = dat >> 2;
}
ukuba ((dat & 0x4000) || (agcreg & 0x4000) || (magreg & 0x4000))
{
/* impazamo iseti yeflegi - kufuneka uyisete kwakhona */
idat = SPI_CMD_READ | SPI_REG_CLRERR;
dat |= spiCalcEvenParity(dat)<<15;
spiTransfer((u8*)&dat, sizeof(u16));
}
enye into
{
agc = agcreg & 0xff // AGC ixabiso (0..255)
ixabiso = dat & (16384 - 31 - 1); // Ixabiso le-engile (0.. 16384 amanyathelo)
i-angle = (ixabiso * 360) / 16384 // Ixabiso le-Angle ngeqondo
(0..359.9°)
ubukhulu = magreg & (16384 - 31 - 1);
alarmLo = (agcreg >> 10) & 0x1;
alarmHi = (agcreg >> 11) & 0x1;
}
}
/*!
******************************************************************
* Bala ngokulinganayo i-16 bit engabhalwanga inani elipheleleyo
*
* Lo msebenzi usetyenziswa lujongano lweSPI ukubala ukulingana
* yedatha eya kuthunyelwa nge-SPI kwi-encoder.
*
* \param[in] ixabiso : 16 bit engatyikitywanga inani elipheleleyo elilingana liya kubalwa
*
* \ukubuya : Nokulingana
*
******************************************************************
*/
i-static u8 spiCalcEvenParity(ixabiso elincinci)
{
u8 cnt = 0;
u8 mna;
kuba (i = 0; i <16; i++)
{
ukuba (ixabiso & 0x1)
{
cnt++;
}
ixabiso >>= 1;
}
buyisela cnt & 0x1;
}
/*!
******************************************************************
* Bala ngokulinganayo i-16 bit engabhalwanga inani elipheleleyo
*
* Lo msebenzi usetyenziswa lujongano lweSPI ukubala ukulingana
* yedatha eya kuthunyelwa nge-SPI kwi-encoder.
*
* \param[in] ixabiso : 16 bit engatyikitywanga inani elipheleleyo elilingana liya kubalwa
*
* \ukubuya : Nokulingana
*
******************************************************************
*/
i-static u8 spiCalcEvenParity(ixabiso elincinci)
{
u8 cnt = 0;
u8 mna;
kuba (i = 0; i <16; i++)
{
ukuba (ixabiso & 0x1)
{
cnt++;
}
ixabiso >>= 1;
}
buyisela cnt & 0x1;
}
I-AS5048-AB-Hardware
Ukulandela iskimu kunye nobeko lwe-Adapterboard inokufunyanwa.
I-AS5048-AB-1.1 Izicwangciso
Umfanekiso 8: Iimpawu ze-AS5048-AB-1.1
AS5048 – AB – 1.1 PCB uyilo
Umfanekiso 9: AS5048-AB-1.1 ibhodi yeadaptha uyilo
Ilungelo lokushicilela
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Iinkcukacha zoqhakamshelwano
Ikomkhulu
Ndingu-AG
Tobelbader Strasse 30
8141 Unterpremstaetten
Ostriya
T. +43 (0) 3136 500 0
KwiiOfisi zeNtengiso, abaThuthi kunye naBameli, nceda undwendwele:
http://www.ams.com/contact
Ikhutshelwe kwi Arrow.com.
Amaxwebhu / Izibonelelo
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ams AS5048 I-14-bit ye-XNUMX-bit ye-Rotary Position Sensor ene-Digital engile kunye ne-PWM Output [pdf] Incwadi yokusebenzisa I-AS5048-AB-1.1, i-AS5048 i-14-bit ye-Rotary Position ye-Sensor ene-Digital engile kunye ne-PWM Output, i-AS5048, i-14-bit ye-Rotary Position i-Sensor ene-Digital angle kunye ne-PWM Output, i-AS5048 i-14-bit ye-Rotary Position, i-Rotary Position, i-Rotary Position Isivamvo |