Data Sheet

ManualsBrandsSparkfun Electronics ManualsSingle BeamSparkFun Distance Sensor Breakout - RFD77402 (Qwiic)

RFD77402 DATASHEET v1.8

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Simblee™ RFD77402

2.2.2 Power-up and power-down Sequence ...........................................................................................................................16

Figure 14: I

C SCL/SDA Power-up/down Sequence ..............................................................................................................16

2.3 Module Programming Interface ..........................................................................................................................................16

Table 6: Host Interface Registers ...........................................................................................................................................17

2.3.1 Configuration Parameters ..............................................................................................................................................18

Table 7: Configuration Parameters Used to Configure the Module ........................................................................................18

2.3.2 Module Interface Registers ............................................................................................................................................19

Table 8: Interrupt Control Status Register ..............................................................................................................................19

Table 9: Interrupt Enable Register ..........................................................................................................................................20

Table 10: Command Register .................................................................................................................................................20

Table 11: Device Status Register ...........................................................................................................................................21

Table 12: Result Register .......................................................................................................................................................21

Table 13: Result Confidence Register ....................................................................................................................................22

Table 14: Command Configuration Register A .......................................................................................................................22

Table 15: Command Configuration Register B .......................................................................................................................22

Table 16: Host to MCPU Mailbox Register .............................................................................................................................23

Table 17: MCPU to Hot Mailbox Register ...............................................................................................................................23

Table 18: PMU Configuration Register ...................................................................................................................................24

Table 19: I

C Address Pointer Register ..................................................................................................................................24

Table 20: I

C Data Port Register ............................................................................................................................................25

Table 21: I

C Init Configuration Register ................................................................................................................................25

Table 22: MCPU Power Management Control Register .........................................................................................................26

2.3.3 Hardware Configuration Registers .................................................................................................................................26

Table 23: HW/FW Configuration Register 0............................................................................................................................26

Table 24: HW/FW Configuration Register 1............................................................................................................................26

Table 25: HW/FW Configuration Register 2............................................................................................................................27

Table 26: HW/FW Configuration Register 3............................................................................................................................27

2.3.4 Other I

C Host Registers ................................................................................................................................................28

Table 27: Module Chip ID Register .........................................................................................................................................28

Table 28: Patch Memory Configuration Control Register .......................................................................................................28

3 Programming Guide .....................................................................................................................................................................29

3.1 Programming Flow Charts .............................................................................................................................................29

Figure 15: Power-up Initialization ...........................................................................................................................................29

3.1.1 Single Measure ..............................................................................................................................................................30

Figure 16: Single Measure Flow Chart ...................................................................................................................................30

4 Performance ................................................................................................................................................................................31

4.1 Measurement Conditions and Accuracy ........................................................................................................................31