Digilent Pmod CMPS2 참조 매뉴얼 - 페이지 5
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Pmod CMPS2™ Reference Manual
Bit Name
RST
TEMP-tst
ST_XYZ
Z-inhibit
Y-inhibit
X-inhibit
BW1³
BW0³
Notes:
¹ - This is the value on power-up and reset
² - For more details see the Continuous Measurement Mode section
³ - For more details see the Output Resolution and Measurement Time section
2.2.4 Continuous Measurement Mode
2.2.5 Output Resolution Measurement Time
2.3
Quick Start
Here is the series of commands to acquire a set of magnetometer data from the Pmod CMPS2 via pseudo I²C code.
1. Power on the Pmod CMPS2 and wait for 10 mS before further operation.
2. Provide a START condition and call the device ID with a write bit
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Bit Number
[7]
[6]
[5]
[4]
[3]
[2]
[1]
[0]
Continuous Measurement Mode Settings
CM Freq1
0
0
1
1
Bandwidth Output Resolution and Measurement Time
BW1
BW0
0
0
1
1
Internal Control 1
Bit Description
Software reset bit
Temp test
Selftest check
Z-inhibit
Y-inhibit
X-inhibit
Bandwidth bit
Bandwidth bit
CM Freq0
0
1
0
1
Output Resolution
0
16 bits
1
16 bits
0
14 bits
1
12 bits
Bit Values
Functional Description
0¹
Normal Operation, this bit
self clears
0¹
Factory-use register
0¹
Set this bit an execute TM
command, the result can be
read as bit ST-XYZ_OK
0¹
Factory-use register
0¹
Factory-use register
0¹
Factory-use register
0¹
Controls the output
resolution and
measurement time
0¹
Controls the output
resolution and
measurement time
Frequency
1.5 Hz
13 Hz
25 Hz
50 Hz
Measurement Time
7.92 mS
4.08 mS
2.16 mS
1.20 mS
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