DIGILENT PmodACL2 3-Axis MEMS Accelerometer

Buka ea boitsebiso ea PmodACL2TM

E ntlafalitsoe ka la 24 Motšeanong, 2016
Bukana ena e sebetsa ho PmodACL2 rev. A 1300 Henley Court Pullman, WA 99163 509.334.6306

www.digilentinc.com

Fetileview
PmodACL2 ke 3-axis MEMS accelerometer e tsamaisoang ke Analog Devices ADXL362. Ka ho buisana le chip ka protocol ea SPI, basebelisi ba ka fumana likotoana tse 12 tsa tharollo bakeng sa axis ka 'ngoe ea ho potlakisa. Ho feta moo, mojule ona o fana ka ts'ebetso ea "trigger" ea kantle ka ho lemoha ha motho a le mong kapa habeli hammoho le likarolo tsa ho boloka matla ka ho beha leihlo ho se sebetse ha eona.

Likarolo tsa Sehlahisoa

• 3-axis MEMS accelerometer
• Ho fihla ho li-bits tse 12 tsa qeto ka axis
• Qeto e ka khethoang ke mosebelisi
• Tlhokomelo ea tšebetso/ho se sebetse
• Tšebeliso e tlaase ea hona joale

Litaelo tsa Tšebeliso ea Sehlahisoa

1. Hokela PmodACL2 ho microcontroller kapa boto ea nts'etsopele u sebelisa protocol ea SPI.
2. Matla ho PmodACL2 le boto ea hau ea microcontroller / nts'etsopele.
3. Ho bala lintlha tsa ho potlakisa, romella litaelo tse nepahetseng ho PmodACL2 ka SPI.
4. PmodACL2 e fana ka likotoana tse 12 tsa tharollo bakeng sa axis ka 'ngoe ea ho potlakisa. Sebelisa tšobotsi e ka khethoang ke mosebelisi ho hlophisa qeto eo u e batlang.
5. Ho bona lintho tse bakang kantle ho naha, etsa hore sesebelisoa se sibolloe se le seng kapa se habeli ho PmodACL2.
6. Ho boloka matla, sebelisa tšobotsi ea ho se sebetse ea PmodACL2.
7. Sheba Bukana ea Reference ea PmodACL2 bakeng sa lintlha tse qaqileng mabapi le litaelo tsa SPI le likhetho tsa tlhophiso.

Fetileview
PmodACL2 ke 3-axis MEMS accelerometer e tsamaisoang ke Analog Devices ADXL362. Ka ho buisana le chip ka protocol ea SPI, basebelisi ba ka fumana likotoana tse 12 tsa tharollo bakeng sa axis ka 'ngoe ea ho potlakisa. Ho feta moo, mojule ona o fana ka ts'ebetso ea "trigger" ea kantle ka ho lemoha ha motho a le mong kapa habeli, hammoho le likarolo tsa ho boloka matla leha e lekola ho se sebetse ha eona.

PmodACL2.

Likarolo li kenyelletsa:

• 3-axis MEMS accelerometer
• Ho fihla ho li-bits tse 12 tsa qeto ka axis
• Qeto e ka khethoang ke mosebelisi
• Tlhokomelo ea tšebetso/ho se sebetse
• Tšebeliso e tlase ea hona joale ho <2 μA ho 100Hz
• Ho lemoha ha ho oa mahala
• PCB e nyane ea boholo bakeng sa meralo e feto-fetohang 1.0 ka ×
  0.8 ho (2.5 cm × 2.0 cm)
• E latela Digilent Pmod Interface
  Tlhaloso ea mofuta oa 2A
• Laebrari le mohlalaample khoutu e teng
  setsing sa lisebelisoa

Tlhaloso ea Ts'ebetso
PmodACL2 e sebelisa Analog Devices ADXL362 ho fana ka lintlha tsa ho potlakisa MEMS ho boto ea tsamaiso. Ka botebo ba eona ba 512-sample FIFO buffer, basebelisi ba khona ho view letoto le lelelele la liketsahalo pele ho tšitiso e bakiloeng kapa ho khona ho fumana data ea potlakiso ea boto ea sistimi ha mosebelisi a e fumana e le bonolo haholo.

Ho kopana le Pmod

PmodACL2 e buisana le boto ea baeti ka protocol ea SPI. Ho bala ho tsoa lirekotong tsa data tse ka botong,
the Chip Select line e tlameha ho huleloa ka tlase pele ebe e romela taelo ea ho bala ho tsoa ho lirekoto tsa data (0x0B).
Aterese e lakatsehang e tlameha ho romelloa ka mor'a moo, ebe byte e lakatsehang e amoheloa le MSB pele moeling oa oache o oelang. Hobane pointer ea aterese e ikemela ho li-byte tse latelang tsa aterese, hoa khoneha ho bala li-byte tse ngata ka tatellano ka ho tsoela pele ho otla mohala oa Serial Clock. Example sete ea litaelo tseo u lokelang ho li bala ho tsoa bukeng ea yaxis e fanoe ka tlase:

Taelo Bala									Aterese ea pele ea Y-axis
0	0	0	0	1	0	1	1	0		0	0	0	1	0	1	0

 

LSB Byte ea data ea Y-axis

MSB Byte ea data ea Y-axis

b7

b6

b5

b4

b3

b2

b1

LSB

SX

SX

SX

SX

MSB

b10

b9

b8

Hlokomela: Karolo e 'ngoe le e' ngoe ea SX e na le boleng bo ts'oanang le karolo ea bohlokoahali ea data ea y-axis.
Ho bala ho tsoa ho buffer ea FIFO, taelo ea "byte" ea ho ngolla registering ea data (0x0A) e tlameha ho romelloa pele e le hore re ka hlophisa rejistara ea FIFO Control (aterese 0x28) ho bontša hore re batla hore FIFO e boloke data. Ka mor'a hore ADXL362 e lokisetsoe ho sebelisa buffer ea FIFO, taelo ea byte ea ho bala ho tloha FIFO buffer (0x0D) e tlameha ho romeloa pele, ebe e lateloa ke lipara tsa li-byte tsa data tse nang le axis e lekantsoeng hammoho le data ea ho potlakisa. Example sete ea litaelo tseo u lokelang ho li bala ho tsoa ho buffer ea FIFO e fanoe ka tlase:

Taelo Bala FIFO Control Register Address Taelo FIFO Bala
0 0 0 0 1 0 1 0 0 0 1 1 0 0 0 0 0 0 0 0 1 1 0 1

LSB Byte ea Lintlha tsa Axis

MSB Byte ea Lintlha tsa Axis

b7

b6

b5

b4

b3

b2

b1

LSB

b15

b14

SX

SX

MSB

b10

b9

b8

Hlokomela: Karolo e 'ngoe le e' ngoe ea SX e na le boleng bo ts'oanang le karolo ea bohlokoahali ea data ea y-axis. b15 le b14 li emela hore na data e kenang e emela axis efe.

Letlapa la Tlhaloso ea Pinout

Letlapa la Pinout la PmodACL2

Sehokelo J1

Sehokelo J2

Pin

Letshwao

Tlhaloso

Pin

Letshwao

Tlhaloso

Pin

Letshwao

Tlhaloso

1

~CS

Khetho ea chip

7

INT2

Thibela Bobeli

1

INT1

Khaotsa One

2

MOSI

Master Out Lekhoba In

8

INT1

Khaotsa One

2

G

Phepelo ea motlakase Fatše

3

MISO

Mong'a Lekhoba Tsoa

9

NC

Ha e kopane

Sehokelo J3

4

LEKHOTLA

Oache ea serial

10

NC

Ha e kopane

Pin

Letshwao

Tlhaloso

5

GND

Phepelo ea motlakase fatshe

11

GND

Phepelo ea motlakase fatshe

1

INT2

Thibela Bobeli

6

VCC

Phepelo ea motlakase (3.3V)

12

VCC

Phepelo ea motlakase (3.3V)

2

G

Phepelo ea motlakase Fatše

PmodACL2 e boetse e na le lithakhisa tse peli tse ka khonehang tse fumanehang bakeng sa tšebeliso. Lipini tsena ka bobeli li ka hlophisoa ho baka tšitiso holim'a lintho tse susumetsang tse ngata tse fapaneng ho kenyelletsa ts'ebetso / ho se sebetse (ho thusa ho fokotsa matla a sistimi), ha buffer ea FIFO e tlatsitsoe ho isa boemong bo lakatsehang, ha data e se e loketse ho khutlisoa, le lintho tse ling tse bakang.
Matla leha e le afe a ka ntle a sebelisoang ho PmodACL2 a tlameha ho ba ka hare ho 1.6V le 3.5V. Ka lebaka leo, ka liboto tsa tsamaiso ea Digilent, Pmod ena e tlameha ho tima seporo sa 3.3V.

Litekanyo tsa 'Mele
Lithakhisa tsa hlooho ea phini li arohane ka 100 mil. PCB e bolelele ba lisenthimithara tse 0.95 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. Litokelo tsohle li sirelelitsoe.
Mabitso a mang a lihlahisoa le a khampani a boletsoeng e kanna ea ba matšoao a beng ba ona.

Litokomane / Lisebelisoa

DIGILENT PmodACL2 3-Axis MEMS Accelerometer [pdf] Buka ea Mong'a PmodACL2 3-Axis MEMS Accelerometer, PmodACL2, 3-Axis MEMS Accelerometer, MEMS Accelerometer, Accelerometer

Litšupiso

• Bukana ea Mosebelisi