ams AS5048 Sensọ Ipo Rotari 14-bit pẹlu Igun oni-nọmba ati Ijade PWM
ọja Alaye
AS5048 jẹ sensọ ipo iyipo 14-bit pẹlu igun oni-nọmba (ni wiwo) ati iṣelọpọ PWM. O ti wa ni apẹrẹ nipasẹ ams OSRAM Group ati atejade nipa Arrow.com. A lo sensọ lati wiwọn ipo ti nkan yiyi ati pese awọn wiwọn igun deede.
Igbimọ ohun ti nmu badọgba AS5048 jẹ iyika ti o fun laaye fun idanwo irọrun ati igbelewọn sensọ AS5048 laisi iwulo fun kikọ imuduro idanwo lọtọ tabi PCB. Awọn ohun ti nmu badọgba ọkọ le ti wa ni so si a microcontroller tabi AS5048-Demoboard bi ohun ita ẹrọ.
Board Apejuwe
Adapterboard AS5048 ṣe ẹya iru wiwo A (SPI) tabi B (I2C), awọn ihò iṣagbesori 4 x 2.6mm, ati asopo P1 kan. O pese ọna irọrun lati sopọ ati ibaraenisepo pẹlu sensọ AS5048.
Iṣagbesori Awọn ilana
Lati gbe igbimọ ohun ti nmu badọgba AS5048, tẹle awọn igbesẹ wọnyi:
- Gbe oofa dimetric sori tabi labẹ sensọ ipo AS5048.
- Rii daju pe oofa ti dojukọ arin package pẹlu ifarada ti 0.5mm.
- Ṣe itọju airgap laarin oofa ati apoti koodu koodu ni iwọn 0.5mm si 2mm.
- Lo ohun elo ti kii ṣe ferromagnetic gẹgẹbi idẹ, bàbà, aluminiomu, tabi irin alagbara fun dimu oofa.
Tẹle awọn ilana wọnyi yoo rii daju iṣẹ ṣiṣe to dara ti igbimọ ohun ti nmu badọgba AS5048 ati awọn wiwọn ipo deede.
Àtúnyẹwò History
Gbogbogbo Apejuwe
AS5048 jẹ irọrun lati lo sensọ ipo igun igun 360 ° pẹlu abajade ipinnu giga 14-bit kan. Lati wiwọn igun, nikan kan ti o rọrun meji-polu oofa, yiyi lori aarin ti awọn ërún, wa ni ti beere.
Oofa naa le gbe loke tabi isalẹ IC. Eyi han ni aworan 1.
olusin 1: Sensọ Ipo oofa AS5048 + Oofa
Ọkọ alamuuṣẹ AS5048
Igbimọ ohun ti nmu badọgba AS5048 jẹ Circuit ti o rọrun ti n gba idanwo ati igbelewọn sensọ ipo oofa AS5048 ni kiakia laisi kikọ imuduro idanwo tabi PCB.
Board apejuwe
Adapterboard AS5048 jẹ Circuit ti o rọrun ti n gba idanwo ati igbelewọn ti koodu rotari AS5048 ni iyara laisi kikọ imuduro idanwo tabi PCB.
PCB le ni asopọ si microcontroller tabi si AS5048-Demoboard bi ẹrọ ita.
olusin 2: AS5048 Adapterboard
Iṣagbesori AS5048 ohun ti nmu badọgba ọkọ
Oofa dimetric gbọdọ wa ni gbe lori labẹ AS5048 sensọ ipo, ati pe o yẹ ki o dojukọ arin package pẹlu ifarada ti 0.5mm.
Awọn airgap laarin awọn oofa ati awọn kooduopo casing yẹ ki o wa ni itọju ni ibiti 0.5mm ~ 2mm. Dimu oofa ko gbọdọ jẹ ferromagnetic. Awọn ohun elo bi idẹ, bàbà, aluminiomu, irin alagbara, irin ni awọn aṣayan ti o dara julọ lati ṣe apakan yii.
Nọmba 3: AS5048 - AB - iṣagbesori ati iwọn
AS5048 ohun ti nmu badọgba ọkọ ati pinout
olusin 4: AS5048 ohun ti nmu badọgba ọkọ asopọ ati ki o encoder pinout
Table 1: Pin apejuwe
| Pin# Board | Pin # AS5 048 | Aami Board |
Apejuwe |
| P1 – 1 | 13 | GND | Ilẹ ipese |
| P1 – 2 | 3 | A2/MISO | SPI titunto si ni / ẹrú jade; pín pẹlu I2C adirẹsi yiyan pin 2 |
| P1 – 3 | 4 | A1/MOSI | SPI oluwa jade / ẹrú ni; pín pẹlu PIN 2 yiyan adirẹsi I1C |
| P1 – 4 | 2 | SCL/SCK | Iṣawọle aago SPI; pín pẹlu I2C aago input |
| P1 – 5 | 1 | SDA/CSn | SPI ërún yan-ṣiṣẹ kekere; pín pẹlu I2C data pinni |
| P1 – 6 | 14 | PWM | Pulse iwọn awose wu |
|
P1 – 7 |
12 |
3.3V |
3V-Regulator o wu; fipa ofin lati VDD. Sopọ si VDD fun 3V ipese voltage |
| P1 – 8 | 11 | 5V | Ipese voltage |
Awọn ọran iṣẹ
Ojutu pipe ati pipe julọ fun MCU lati ka igun oofa ni wiwo SPI.
Ipo SPI Ẹrọ kan, unidirectional – 3 waya
AS5048-AB le ni asopọ taara si ibudo boṣewa SPI ile-iṣẹ ti microcontroller kan. Ibeere asopọ ti o kere julọ fun ibaraẹnisọrọ unidirectional (igun + awọn iye itaniji) laarin microcontroller ati AS5048 jẹ MISO, SCK, SS/.
Igun naa yoo ka ni gbigbe 16-bit SPI kọọkan. Wo tabili iforukọsilẹ iwe datasheet AS5048, forukọsilẹ 3FFFh.
Nọmba 5: Lilo SPI Interface unidirectional pẹlu microcontroller
Ipo SPI ẹrọ kan, ọna-itọkasi – 4 waya
Ti awọn iforukọsilẹ miiran ju awọn iye igun nikan ni lati ka, tabi lati le kọ awọn iforukọsilẹ sinu AS5048, ifihan MOSI jẹ dandan.
Nọmba 6: Lilo SPI Interface bidirectional pẹlu microcontroller
Awọn ẹrọ pupọ SPI Daisy pq mode
AS5048 le jẹ ẹwọn daisy, lilo awọn okun waya 4 nikan fun ibaraẹnisọrọ SPI.
Ninu iṣeto yii pẹlu awọn koodu koodu nx, ọkọọkan yoo ṣe ilana bi atẹle:
- MCU ṣeto SS/ = 0
- MCU yipada nx 16-bit (fun apẹẹrẹ KA pipaṣẹ FFFFh) nipasẹ pq
- MCU ṣeto SS/=1
Ni aaye yẹn gbogbo awọn koodu koodu nx ti gba aṣẹ READ FFFFh. - MCU ṣeto SS/=0
- MCU yipada nx 16-bit (fun apẹẹrẹ NOP pipaṣẹ 0000h)
- MCU ṣeto SS/=1
Ni aaye yẹn nx 16-bit ti o gba lori MISO jẹ awọn iye igun nx.
Nọmba 7: Awọn ẹrọ pupọ ni ipo pq Daisy
Ifaminsi famuwia
Awọn koodu orisun atẹle ba ohun elo 4-Wire mu
Iṣẹ asan spiReadData() ka/kọ awọn iye 4 lati AS5048
- Firanṣẹ aṣẹ KA AGC / Gba iye aimọ
- Firanṣẹ aṣẹ READ MAG / Gba iye AGC
- Firanṣẹ aṣẹ KA Angle / Gba MAG iye
- Firanṣẹ aṣẹ NOP (ko si iṣẹ) / Gba ANGLE iye
Ti ANGLE KA nikan ba jẹ dandan ni lupu, ilana naa le dinku si laini kan:
- Firanṣẹ aṣẹ KA Angle / Gba igun iye
Iṣẹ aimi u8 spiCalcEvenParity (iye ushort) jẹ iyan, o ṣe iṣiro iwọn-ipin ti ṣiṣan SPI 16-bit.
/*!
********************************************** ***********************
* Ka jade ni ërún data nipasẹ SPI ni wiwo
*
* Iṣẹ yii ni a lo lati ka iye cordic jade lati awọn eerun ti n ṣe atilẹyin SPI
* ni wiwo.
********************************************** ***********************
*/
#sọtumọ SPI_CMD_READ 0x4000 /*!<asia ti n tọka igbiyanju kika nigba lilo wiwo SPI */
#sọtumọ SPI_REG_AGC 0x3ffd /*!<agc forukọsilẹ nigba lilo SPI */
# ṣe alaye SPI_REG_MAG 0x3ffe /*!< iforukọsilẹ titobi nigba lilo SPI */
# ṣe alaye SPI_REG_DATA 0x3fff /*!< iforukọsilẹ data nigba lilo SPI */
#sọtumọ SPI_REG_CLRERR 0x1 /*!<fiforukọṣilẹ aṣiṣe nigba lilo SPI */
ofo spiReadData()
{
u16 dat; // 16-bit data saarin fun SPI ibaraẹnisọrọ
iwọn 16;
ushort igun, agcreg;
ubyte agc;
iye owo kekere;
itaniji bitHi, alarmLo;
/* Firanṣẹ KA AGC pipaṣẹ. Awọn data ti o gba ti ju silẹ: data yii wa lati aṣẹ iṣaaju (aimọ)*/
dat = SPI_CMD_READ | SPI_REG_AGC;
dat | = spiCalcEvenParity (dat) << 15;
spiTransfer ((u8*) & dat, sizeof (u16));
/ /* Firanṣẹ aṣẹ MAG READ. Data ti o gba ni iye AGC: data yii wa lati aṣẹ iṣaaju (aimọ)*/
dat = SPI_CMD_READ | SPI_REG_MAG;
dat | = spiCalcEvenParity (dat) << 15;
spiTransfer ((u8*) & dat, sizeof (u16));
magreg = dat;
/* Firanṣẹ KA ANGLE pipaṣẹ. Awọn data ti o gba ni iye MAG, lati aṣẹ iṣaaju */
dat = SPI_CMD_READ | SPI_REG_DATA;
dat | = spiCalcEvenParity (dat) << 15;
spiTransfer ((u8*) & dat, sizeof (u16));
agcreg = dat;
/* Firanṣẹ aṣẹ NOP. Data ti o gba ni iye ANGLE, lati aṣẹ iṣaaju */
dat = 0x0000; // NOP pipaṣẹ.
spiTransfer ((u8*) & dat, sizeof (u16));
igun = dat >> 2;
}
ti ((dat & 0x4000) || (agcreg & 0x4000) || (magreg & 0x4000)))
{
/ * ṣeto asia aṣiṣe - nilo lati tunto */
dat = SPI_CMD_READ | SPI_REG_CLRERR;
dat | = spiCalcEvenParity (dat) <<15;
spiTransfer ((u8*) & dat, sizeof (u16));
}
miiran
{
agc = agcreg & 0xff // AGC iye (0..255)
iye = dat & (16384 – 31 – 1); // Iye igun (0.. 16384 awọn igbesẹ)
igun = (iye * 360) / 16384 // Igun iye ni ìyí
(0..359.9°)
titobi = magreg & (16384 - 31 - 1);
alarmLo = (agcreg >> 10) & 0x1;
alarmHi = (agcreg >> 11) & 0x1;
}
}
/*!
********************************************** ***********************
* Ṣe iṣiro paapaa deede ti odidi 16 ti ko forukọsilẹ
*
* Iṣẹ yii jẹ lilo nipasẹ wiwo SPI lati ṣe iṣiro irẹpọ paapaa
* ti data eyiti yoo firanṣẹ nipasẹ SPI si koodu koodu.
*
* \param[in] iye: 16 bit ti a ko ti fowo siwe eyi ti o yẹ ki o ṣe iṣiro
*
* \pada: Paapaa deede
*
********************************************** ***********************
*/
aimi u8 spiCalcEvenParity(iye kukuru)
{
u8 cnt = 0;
u8 i;
fun (i = 0; i <16; i++)
{
ti o ba jẹ (iye & 0x1)
{
cnt++;
}
iye>>= 1;
}
pada cnt & 0x1;
}
/*!
********************************************** ***********************
* Ṣe iṣiro paapaa deede ti odidi 16 ti ko forukọsilẹ
*
* Iṣẹ yii jẹ lilo nipasẹ wiwo SPI lati ṣe iṣiro irẹpọ paapaa
* ti data eyiti yoo firanṣẹ nipasẹ SPI si koodu koodu.
*
* \param[in] iye: 16 bit ti a ko ti fowo siwe eyi ti o yẹ ki o ṣe iṣiro
*
* \pada: Paapaa deede
*
********************************************** ***********************
*/
aimi u8 spiCalcEvenParity(iye kukuru)
{
u8 cnt = 0;
u8 i;
fun (i = 0; i <16; i++)
{
ti o ba jẹ (iye & 0x1)
{
cnt++;
}
iye>>= 1;
}
pada cnt & 0x1;
}
AS5048-AB-Hardware
Awọn wọnyi ni sikematiki ati ifilelẹ ti awọn Adapterboard le ṣee ri.
AS5048-AB-1.1 Sikematiki
Nọmba 8: AS5048-AB-1.1 adapterboard schematics
AS5048 - AB - 1.1 PCB akọkọ
Nọmba 9: AS5048-AB-1.1 ohun ti nmu badọgba ọkọ akọkọ
Aṣẹ-lori-ara
Aṣẹ-lori-ara ams AG, Tobelbader Strasse 30, 8141 Unterpremstätten, Austria-Europe. Aami-iṣowo ti forukọsilẹ. Gbogbo awọn ẹtọ wa ni ipamọ. Awọn ohun elo ti o wa ninu rẹ le ma tun ṣe, ṣe atunṣe, dapọ, titumọ, fipamọ, tabi lo laisi aṣẹ kikọ tẹlẹ ti oniwun aṣẹ-lori.
AlAIgBA
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Ibi iwifunni
Olú
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Tobelbader Strasse 30
8141 Unterpremstaetten
Austria
T. +43 (0) 3136 500 0
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ams AS5048 Sensọ Ipo Rotari 14-bit pẹlu Igun oni-nọmba ati Ijade PWM [pdf] Afowoyi olumulo AS5048-AB-1.1, AS5048 14-bit Rotary Position Sensor pẹlu Digital Angle ati PWM Output, AS5048, 14-bit Rotary Position Sensor with Digital Angle and PWM Output, AS5048 14-bit Rotary Position Sensor, Rotary Position Sensor, Sensor Ipo, Sensọ |