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QST104 数据表(PDF) 20 Page - STMicroelectronics

部件名 QST104
功能描述  Capacitive touch sensor device 4 keys with individual key state outputs or I2C interface
PDF  45 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

QST104 数据表(HTML) 20 Page - STMicroelectronics

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Device operating modes
QST104
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GET_DEVICE_INFO
Write
0x85
Returns the QST104 device version and ASCII-coded device
name. This command must be sent first to enable the
communication flow.
MainVers: Device main version
SubVer: Device sub-version
NbSCkey: 0x04 single-channel keys
NbMCkey: 0x00 multi-channel keys
Q S T 1 0 4: ASCII-coded device name
Read
0x15 MainVers SubVers
NbSCkey NbMCkey
‘Q’ ’S’ ‘T’ ‘1’ ‘0’ ‘4’
Checksum
GET_KEY_ERROR
Write
0xC4
Returns the error information on each key.
KeyErrorN: KeyError byte description (see Table 12)
Read
0x11 KeyError1
KeyError2 ... KeyError4
CheckSum
GET_KEY_STATE
Write
0xC1
Returns the state of all keys.
AllKeyState: Touched/untouched state for all 4 keys. Refer to
Table 13: AllKeyState.
KeyError: Refer to Table 12: KeyError byte description
Read
0x03 AllKeyState
KeyError Checksum
GET_PROTOCOL_VERSION
Write
0x80
Returns the QST104 protocol version.
MainVers: Protocol main version
SubVer: Protocol sub-version
I2CSpeed: 0x00 (100 kHz maximum)
Read
0x07 MainVers SubVer
I2CSpeed Checksum
RESET_DEVICE
Write
0xFD
Restarts the device (options Read and Calibration) after
reading the ErrCode (see Table 11).
Read
ErrCode
SET_DETECT_INTEGRATORS
Write
0x03 0x04 0x00 DI EDI
PosRecaII CheckSum
Sets the detection, End Of Detection and Positive Recalibration
Integrators for all keys.
DI: Detection Integrator 1) 3)
EDI: End of Detection Integrator 1) 3)
PosRecaII: Positive Recalibration Integrator 1) 3)
ErrCode: Standard Error code (see Table 11)
Read
ErrCode
SET_GPIO_STATE
Write
0x08 0x02 GPOState1
GPOState2 Checksum
Controls the state of the general-purpose outputs.
GPOStateN: State of general-purpose outputs (see Table 16)
ErrCode: Standard Error code (see Table 11)
Read
ErrCode
Table 10.
Supported commands (continued)
I2C commands
Description



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