MICROCHIP LX7730-SAMRH71F20 Awọn sensọ Ririnkiri Itọsọna olumulo

LX7730-SAMRH71F20 Sensors Ririnkiri jẹ ifihan ti oluṣakoso telemetry ọkọ ofurufu LX7730 ni iṣakoso nipasẹ SAMRH71F20 MCU kan. O pẹlu awọn sensọ oriṣiriṣi bii titẹ, ina, accelerometer, iwọn otutu, ati awọn sensọ ṣiṣan oofa. Igbimọ demo nilo NI Labview Run-Time Engine insitola lati fi sori ẹrọ lori kọmputa.

Itọsọna Olumulo Ririnkiri Sensọ LX7730-SAMRH71F20 pese awọn ilana lori fifi sọfitiwia sori ẹrọ, ṣeto ohun elo, ati ṣiṣiṣẹ igbimọ demo.

Awọn ilana Lilo ọja

Fifi sori ẹrọ Software:

Ṣayẹwo boya o ni NI Labview Run-Time Engine installer fi sori ẹrọ lori kọmputa rẹ. Ti kii ba ṣe bẹ, fi sii.

Ti o ko ba ni idaniloju boya awọn awakọ ti fi sii tẹlẹ, ṣiṣe LX7730_Demo.exe. Ti o ba ri ifiranṣẹ aṣiṣe, o tumọ si pe awọn awakọ ko fi sii ati pe o nilo lati fi wọn sii.

Ilana Iṣeto Hardware:

Lati ṣeto ohun elo fun LX7730-SAMRH71F20 Sensors Ririnkiri, tẹle awọn igbesẹ wọnyi:

So LX7730 Ọmọbinrin Board pọ si SAMRH71F20-EK Apo Igbelewọn nipa lilo LX7730-DB si SAMRH71F20-EK linker board.

Ṣe eto SAMRH71F20-EK pẹlu alakomeji Interface Sensọ.
So okun ohun ti nmu badọgba FTDI TTL-232R-3V3 USB-to-RS232.

Isẹ:

Lati ṣiṣẹ Ririnkiri Sensọ LX7730-SAMRH71F20, tẹle awọn igbesẹ wọnyi:

Agbara soke SAMRH71F20-EK.
Ṣiṣe LX7730_Demo.exe GUI lori kọnputa ti o sopọ.

Yan ibudo COM ti o baamu SAMRH71F20-EK lati inu akojọ aṣayan-isalẹ ki o tẹ sopọ.
Ni wiwo GUI yoo ṣe afihan awọn abajade fun iwọn otutu, agbara, ijinna, aaye oofa (sisan), ati ina.

Lo wiwo GUI lati ṣe idanwo pẹlu awọn sensọ oriṣiriṣi:
- Sensọ iwọn otutu: Tẹle awọn ilana ti a pese ni apakan 3.1 ti itọsọna olumulo.
- Sensọ Titẹ: Waye agbara si sensọ titẹ ki o ṣe akiyesi vol ti o wutage ni wiwo GUI (apakan 3.2).
- Sensọ Ijinna: Gbe awọn nkan sunmọ tabi jinna si sensọ ijinna ati ṣayẹwo iye ijinna oye ni GUI (apakan 3.3).
- Sensọ Flux oofa: Gbe oofa kan sunmọ tabi jinna si sensọ oofa ki o ṣe akiyesi iye ṣiṣan ti oye ninu GUI (apakan 3.4).
- Sensọ Imọlẹ: Ṣatunṣe imọlẹ ina ni ayika sensọ ki o ṣayẹwo iye ina ti oye ni GUI (apakan 3.5).

Ọrọ Iṣaaju

LX7730-SAMRH71F20 Sensors Ririnkiri ṣe afihan oluṣakoso telemetry ọkọ ofurufu LX7730 ni iṣakoso nipasẹ SAMRH71F20 (200 DMips Cortex M7 pẹlu agbara 100krad TID) MCU.

LX7730 jẹ oluṣakoso telemetry ti ọkọ ofurufu ti o ni multixer igbewọle gbogbo agbaye 64 ti o le tunto bi akojọpọ iyatọ- tabi awọn igbewọle sensọ opin-ọkan. Orisun lọwọlọwọ siseto tun wa ti o le ṣe itọsọna si eyikeyi ninu awọn igbewọle gbogbo agbaye 64. Awọn igbewọle gbogbo agbaye le jẹ sampmu pẹlu 12-bit ADC, ati pe o tun jẹ ifunni awọn igbewọle ipele-meji pẹlu iloro ti a ṣeto nipasẹ DAC 8-bit inu inu. Afikun 10-bit DAC lọwọlọwọ wa pẹlu awọn abajade ibaramu. Nikẹhin, awọn igbewọle ipele-meji ala-ilẹ 8 ti o wa titi wa.
demo naa ni PCB kekere kan ti o ni awọn sensọ oriṣiriṣi 5 (Aworan 2 ni isalẹ) ti o pilogi sinu LX7730 Ọmọbinrin Board, Igbimọ ọmọbinrin ni ọna asopọ si Apo Igbelewọn SAMRH71F20-EK nipasẹ igbimọ ọna asopọ kan. demo naa ka data lati awọn sensosi (iwọn otutu, titẹ, agbara aaye oofa, ijinna, ati isare 3-axis), ati ṣafihan wọn lori GUI ti n ṣiṣẹ lori PC Windows kan.

Fifi software sori ẹrọ

Fi NI Lab sori ẹrọview Ṣiṣe-Time Engine insitola ti ko ba si tẹlẹ lori kọmputa rẹ. Ti o ko ba ni idaniloju boya o ti fi awọn awakọ sii tẹlẹ, lẹhinna gbiyanju ṣiṣe LX7730_Demo.exe. Ti ifiranṣẹ aṣiṣe ba han bi isalẹ, lẹhinna o ko fi awọn awakọ sii ati pe o nilo lati ṣe bẹ.

Fi agbara soke ki o ṣe eto SAMRH71F20-EK pẹlu SAMRH71F20 Sensor Interface MPLAB alakomeji, lẹhinna fi agbara si isalẹ lẹẹkansi.

Ilana Eto Hardware

Iwọ yoo nilo Igbimọ Ọmọbinrin LX7730 kan, LX7730-DB kan si SAMRH71F20-EK linker board, Apo Igbelewọn SAMRH71F20-EK kan ti a ṣe eto pẹlu alakomeji Interface Sensor, ati FTDI TTL-232R-3V3 USB-to-RS232 USB adapter ni afikun si okun oluyipada sensọ Ririnkiri ọkọ. Nọmba 4 ni isalẹ fihan LX7730-DB ti a ti sopọ si SAMRH71F20-EK pẹlu igbimọ ọna asopọ kan.

Ilana fifi sori ẹrọ ni:

Bẹrẹ pẹlu awọn igbimọ mẹta ti a yọ kuro lati ara wọn
Lori LX7730-DB, ṣeto SPI_B ifaworanhan yipada SW4 si osi (LOW), ki o si ṣeto SPI_A ifaworanhan SW3 si ọtun (HIGH) lati yan SPIB ni wiwo ni tẹlentẹle. Rii daju pe awọn jumpers lori LX7730-DB ti ṣeto si awọn aiyipada ti o han ninu itọsọna olumulo LX7730-DB
Ṣe ipele igbimọ Sensors Demo si LX7730-DB, yọ igbimọ ọmọ-binrin kuro ni akọkọ (ti o ba ni ibamu). Demo Board asopo J10 pilogi sinu LX7730-DB asopo J376, ati J2 jije ni oke 8 awọn ori ila ti asopo J359 (olusin 5 ni isalẹ)
Rii daju pe iwọnyi nikan ni awọn jumpers ti o baamu lori igbimọ ọna asopọ:
- Gbogbo 4 jumpers lori akọsori PL_SPIB. Eyi ṣe ipa ọna wiwo SPI lati SAMRH71F20-EK si LX7730-DB
- PA10: CLK jumper lori akọsori PL_ETC. Eyi ṣe ọna aago 500kHz lati SAMRH71F20-EK si LX7730-DB
- PA9 naa:TTUN jumper sori akọle PL_ETC. Eyi ṣe ipa ọna ifihan agbara atunto lati SAMRH71F20-EK si LX7730-DB
- Awọn pinni 2:3 (meji osi) lori akọsori ila-ẹyọkan PL_Power. Eyi yan SAMRH71F20-EK gẹgẹbi orisun agbara 3.3V si LX7730-DB, nitorinaa asopọ agbara DC lori igbimọ ọna asopọ ko lo.
Pọ FTDI TTL-232R-3V3 USB-to-RS232 ohun ti nmu badọgba okun sori PL_UART akọsori ẹyọkan lori igbimọ ọna asopọ. Pin 1 (0V) gba asiwaju dudu (Aworan 6 ni isalẹ). Awọn ifihan agbara GND, TXD, ati RXD nikan ni a lo lati oluyipada FTDI TTL-232R-3V3
Pulọọgi igbimọ ọna asopọ sinu SAMRH71F20-EK nipa lilo awọn asopọ petele 4
Pulọọgi awọn ọna asopọ ọkọ sinu LX7730-DB lilo FMC-LPC asopo
So ohun ti nmu badọgba FTDI TTL-232R-3V3 USB-to-RS232 si PC rẹ nipasẹ USB

Isẹ

Agbara soke SAMRH71F20-EK. LX7730-DB n gba agbara rẹ lati SAMRH71F20-EK. Ṣiṣe LX7730_Demo.exe GUI lori kọnputa ti o sopọ. Yan ibudo COM ti o baamu SAMRH71F20-EK lati inu akojọ aṣayan silẹ ki o tẹ sopọ. Oju-iwe akọkọ ti wiwo GUI fihan awọn abajade fun iwọn otutu, agbara, ijinna, aaye oofa (sisan), ati ina. Oju-iwe keji ti wiwo GUI fihan awọn abajade lati accelerometer 3-axis (olusin 7 ni isalẹ).

Ṣe idanwo pẹlu Sensọ Iwọn otutu:
Yi iwọn otutu pada ni iwọn 0°C si +50°C ni ayika sensọ yii. Iye iwọn otutu ti oye yoo han ni GUI.

Ṣe idanwo pẹlu sensọ Ipa
Tẹ ipari iyipo ti sensọ titẹ lati lo agbara kan. GUI yoo ṣe afihan abajade abajade voltage, fun Nọmba 9 ni isalẹ fun RM = 10kΩ fifuye.

Ṣe idanwo pẹlu Sensọ Ijinna
Gbe awọn nkan lọ tabi sunmọ (10cm si 80cm) si oke sensọ ijinna. Iye ijinna ti oye yoo han ni GUI.

Ṣe idanwo pẹlu sensọ Flux oofa
Gbe oofa kuro tabi sunmọ sensọ oofa. Iye ṣiṣan ti oye yoo han ni GUI ni ibiti -25mT si 25mT.

Ṣe idanwo pẹlu Sensọ Imọlẹ
Yi imọlẹ ina ni ayika sensọ. Iye ina ti oye yoo han ni GUI. Ijade voltagIwọn e VOUT jẹ 0 si 5V (Table 1 ni isalẹ) ni atẹle Idogba 1.

Idogba 1. Sensọ Ina Lux si Voltage Abuda

Table 1. Light sensọ

Lux	Resistance Dudu R_d(kW)	VJade
0.1	900	0.05
1	100	0.45
10	30	1.25
100	6	3.125
1000	0.8	4.625
10,000	0.1	4.95

Ṣiṣayẹwo pẹlu Sensọ isare
Awọn data accelerometer 3-axis ti han ni GUI bi cm/s², nibiti 1g = 981 cm/s².

Sisọmu

PCB Ìfilélẹ

PCB Parts Akojọ

Awọn akọsilẹ apejọ wa ni buluu.

Table 2. Bill of elo

Àtúnyẹwò History

Àtúnyẹwò History

Atunyẹwo 1 - May 2023

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MICROCHIP LX7730-SAMRH71F20 Sensosi Ririnkiri [pdf] Itọsọna olumulo
LX7730-SAMRH71F20 Ririnkiri Sensọ, LX7730-SAMRH71F20, Ririnkiri sensọ, Ririnkiri

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Itọsọna olumulo

MICROCHIP LX7730-SAMRH71F20 Sensosi Ririnkiri

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