Great Scott Gadgets HackRF - Reading and Writing Device Registers

Great Scott Gadgets HackRF

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HackRF

62 Chapter 18. Multiple device hardware level synchronization

Table of Contents

Default Chapter3
- Table of Contents3
1 Getting Started with Hackrf and GNU Radio7
- Try Your Hackrf with Pentoo Linux7
- Software Setup8
- Examples8
2 Hackrf_Sweep9
- Usage9
- Output Fields9
3 Operating System Tips11
- Package Managers11
- Building from Source12
4 Hackrf One15
- Features15
- Differences between Jawbreaker and Hackrf One15
- Enclosure Options16
- Using Hackrf One's Buttons16
- SMA, Not RP-SMA16
- Transmit Power17
- Receive Power17
- External Clock Interface (CLKIN and CLKOUT)17
- Hardware Documentation18
- Expansion Interface18
5 Opera Cake23
- Using Opera Cake23
- Opera Glasses24
6 Updating Firmware25
- Updating the SPI Flash Firmware25
- Updating the CPLD25
- Only if Necessary: DFU Boot26
- Only if Necessary: Recovering the SPI Flash Firmware26
- Obtaining DFU-Util26
7 Faq29
- I Can't Seem to Access My Hackrf under Linux29
- Hackrf_Set_Sample_Rate Fails31
- What Is the Big Spike in the Center of My Received Spectrum31
- How Do I Deal with the DC Offset32
- Purchasing Hackrf32
- Making Sense of Gain Settings32
- System Requirements33
- Leds33
- Half-Duplex, Full-Duplex33
- What Is the Receive Sensibility of Hackrf34
- Troubleshooting34
8 Hackrf Hacks35
9 Getting Help37
10 Tips and Tricks39
- USB Cables (and Why to Use a Noise Reducing One)39
- Sampling Rate and Baseband Filters39
11 Firmware Development Setup41
12 Lpc43Xx Debugging43
- Black Magic Probe43
- LPC-Link43
- St-Link/V243
- Run ARM GDB45
13 Lpc43Xx SGPIO Configuration47
- Frequently Asked Questions47
14 Lpc43Xx USB DFU Notes49
- Setup49
- Usage Notes49
- Jellybean Notes50
15 Lpc43Xx USB Implementation51
- Initial Experimentation and Discovery51
16 Hardware Components53
- Block Diagrams54
17 Clocking57
18 Multiple Device Hardware Level Synchronization59
- Purpose59
- Related Work59
- Requirements59
- Opening Your Hackrf60
- Connect the Clocks60
- Identify the Pin Headers61
- Wire up the Pin Headers63
- Upgrade65
- Testing with Hackrf_Transfer65
- What Next66
19 Software Support69
- Software with Hackrf Support69
- GNU Radio Based69
- Direct Support69
- Can Use Hackrf Data69
- Hackrf Tools70
- Handling Hackrf Data70
20 Libhackrf API71
- Setup, Initialization and Shutdown71
- Using the Radio73
- Reading and Writing Registers74
- Updating Firmware75
- Board Identifiers76
- Miscellaneous77
- Data Structures77
- Enumerations78
21 Jawbreaker81
- Features81
- Set Your Jawbreaker Free81
- SMA, Not RP-SMA82
- Transmit Power82
- Hardware Documentation82
- Expansion Interface82
22 Design Goals89
23 Future Hardware Modifications91
- Antenna91
- Baseband91
- Cpld91
- Clocking91
- Usb92
- Power Management92
- Regulators92
- Buttons92
- Shielding92
- Footprints92
- Shield Support93
24 Lemondrop Bring up95
- Si5351 I2C95
25 LPC4350 SGPIO Experimentation101
- SGPIO Examples101