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【实例简介】nRF24L01P官方资料

Contents
1 Introduction ............................................................................................... 7
1.1 Features............................................................................................... 8
1.2 Block diagram ...................................................................................... 9
2 Pin Information.......................................................................................... 10
2.1 Pin assignment..................................................................................... 10
2.2 Pin functions......................................................................................... 11
3 Absolute maximum ratings...................................................................... 12
4 Operating conditions................................................................................ 13
5 Electrical specifications ........................................................................... 14
5.1 Power consumption.............................................................................. 14
5.2 General RF conditions ......................................................................... 15
5.3 Transmitter operation........................................................................... 15
5.4 Receiver operation............................................................................... 16
5.5 Crystal specifications ........................................................................... 19
5.6 DC characteristics................................................................................ 20
5.7 Power on reset..................................................................................... 20
6 Radio Control ............................................................................................ 21
6.1 Operational Modes............................................................................... 21
6.1.1 State diagram .................................................................................. 21
6.1.2 Power Down Mode .......................................................................... 22
6.1.3 Standby Modes................................................................................ 22
6.1.4 RX mode.......................................................................................... 23
6.1.5 TX mode.......................................................................................... 23
6.1.6 Operational modes configuration..................................................... 24
6.1.7 Timing Information........................................................................... 24
6.2 Air data rate.......................................................................................... 25
6.3 RF channel frequency.......................................................................... 25
6.4 Received Power Detector measurements............................................ 25
6.5 PA control............................................................................................. 26
6.6 RX/TX control....................................................................................... 26
7 Enhanced ShockBurst™ .......................................................................... 27
7.1 Features............................................................................................... 27
7.2 Enhanced ShockBurst™ overview....................................................... 27
7.3 Enhanced Shockburst™ packet format................................................ 28
7.3.1 Preamble ......................................................................................... 28
7.3.2 Address ........................................................................................... 28
7.3.3 Packet control field .......................................................................... 28
7.3.4 Payload............................................................................................ 29
7.3.5 CRC (Cyclic Redundancy Check) ................................................... 30
7.3.6 Automatic packet assembly............................................................. 31
7.3.7 Automatic packet disassembly ........................................................ 32
7.4 Automatic packet transaction handling ................................................ 33
7.4.1 Auto acknowledgement ................................................................... 33
7.4.2 Auto Retransmission (ART)............................................................. 33
Revision 1.0 Page 5 of 78
nRF24L01 Product Specification
7.5 Enhanced ShockBurst flowcharts ........................................................ 35
7.5.1 PTX operation.................................................................................. 35
7.5.2 PRX operation ................................................................................. 37
7.6 MultiCeiver™........................................................................................ 39
7.7 Enhanced ShockBurst™ timing ........................................................... 42
7.8 Enhanced ShockBurst™ transaction diagram ..................................... 45
7.8.1 Single transaction with ACK packet and interrupts.......................... 45
7.8.2 Single transaction with a lost packet ............................................... 46
7.8.3 Single transaction with a lost ACK packet....................................... 46
7.8.4 Single transaction with ACK payload packet................................... 47
7.8.5 Single transaction with ACK payload packet and lost packet.......... 47
7.8.6 Two transactions with ACK payload packet and the first
ACK packet lost .............................................................................. 48
7.8.7 Two transactions where max retransmissions is reached............... 48
7.9 Compatibility with ShockBurst™ .......................................................... 49
7.9.1 ShockBurst™ packet format............................................................ 49
8 Data and Control Interface ....................................................................... 50
8.1 Features............................................................................................... 50
8.2 Functional description .......................................................................... 50
8.3 SPI operation ....................................................................................... 50
8.3.1 SPI commands ................................................................................ 50
8.3.2 SPI timing ........................................................................................ 52
8.4 Data FIFO ............................................................................................ 55
8.5 Interrupt................................................................................................ 56
9 Register Map.............................................................................................. 57
9.1 Register map table............................................................................... 57
10 Peripheral RF Information........................................................................ 64
10.1 Antenna output..................................................................................... 64
10.2 Crystal oscillator................................................................................... 64
10.3 nRF24L01 crystal sharing with an MCU............................................. 64
10.3.1 Crystal parameters .......................................................................... 64
10.3.2 Input crystal amplitude and current consumption............................ 64
10.4 PCB layout and decoupling guidelines................................................. 65
11 Application example ................................................................................. 66
11.1 PCB layout examples........................................................................... 67
12 Mechanical specifications........................................................................ 71
13 Ordering information ................................................................................ 73
13.1 Package marking ................................................................................. 73
13.2 Abbreviations ....................................................................................... 73
13.3 Product options .................................................................................... 73
13.3.1 RF silicon......................................................................................... 73
13.3.2 Development tools........................................................................... 73
14 Glossary of Terms..................................................................................... 74
Appendix A - Enhanced ShockBurst™ - Configuration and
communication example .........................................................................75
Enhanced ShockBurst™ transmitting payload..................................... 75
Revision 1.0 Page 6 of 78
nRF24L01 Product Specification
Enhanced ShockBurst™ receive payload............................................ 76
Appendix B - Configuration for compatibility with nRF24XX................ 77
Appendix C - Constant carrier wave output for testing......................... 78
Configuration........................................................................................ 78

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├── nRF24L01P官方资料.pdf
└── 好例子网_nRF24L01P官方资料.rar

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