Nooploop TOFSense-F - Page 12

Protocol Unpack
Copyright © Nooploop LTd 2023. All Rights Reserved.
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bandwidth
bandstart
[0-15] bandstart : I/O mode latency start, unit: mm
[16-31] bandwidth : I/O mode loop bandwidth, unit: mm
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Systime
[0-31] Systime : system time, unit: ms
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Distance
[0-31] Distance : The distance,unit: mm
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Signal_strength
Dis_status
[0-15] Dis_status : The distance status
[16-31] Signal_strength
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Filter factor
Refresh rate
Range_precision
[0-7] Range_precision : Measurement accuracy, unit: cm, 0xFF represents greater than or equal to 255cm, 0x00
represents less than 1cm.
[8-23] Refresh rate , unit:Hz
[24-31] Filter factor: 0 ~ 255. Default :5
I2C communication process:
Single data write
Start
Slave Addr|W
ACK
Reg Addr
ACK
Data[7:0]
ACK
Stop
Sinal data read
Start
Slave Addr|W
ACK
Reg Addr
ACK
Stop
Start
Slave Addr|R
ACK
Data[7:0]
NACK
Stop
Multiple data write
Start
Slave Addr|W
ACK
Reg Addr
ACK
Data[7:0]
ACK
Data[7:0]
ACK
Data[7:0]
ACK
Stop
Multiple data read
Start
Slave Addr|W
ACK
Reg Addr
ACK
Stop
Start
Slave Addr|R
ACK
Data[7:0]
ACK
Data[7:0]
ACK
Data[7:0]
NACK
Stop
Start: Start signal
W: Read flag 1
R: Write flag 0
ACK: Acknowledge
NACK: Non-acknowledge
Stop: Stop signal
Host sends