ST ST25RU3993 User manual

March 2022 UM2268 Rev 6 1/68
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UM2268
User manual
ST25RU3993 evaluation board software
Introduction
This document describes the ST25RU3993 Reader Suite, a graphical user interface (GUI)
software (STSW-ST25RU001) for the ST25RU3993 evaluation boards.
The ST25RU3993 evaluation board is ST’s fully integrated Gen2/ISO18000-63 compatible
UHF RFID reader ICs.
Additionally, a quick start guide includes a list of basic steps recommended to configure the
demonstration reader for the most common applications.
www.st.com

Contents UM2268
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Contents
1 Quick start guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Hardware preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Software installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.3 First connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.4 Firmware (FW) update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2 Main window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1 Reader and Scan information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.1.1 Reader information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.1.2 Scanned tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.1.3 Tag information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.2 Inventory Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.3 Scan panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.4 Select panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.5 Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.6 Region info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.7 Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.7.1 Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.7.2 View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.7.3 Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.8 Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.8.1 Trace browser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.8.2 Unique Tag plot dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.8.3 Tag list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.8.4 Tag Associations - Global Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.8.5 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.9 Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.10 Context menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.10.1 ST25RU3993 Reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.10.2 Scanned Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3 Register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

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4 Reader Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.1 Settings tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.1.1 General panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.1.2 Frequency selection panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.1.3 Frequency hopping panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.1.4 Tx Options panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4.1.5 Carrier Sense panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.1.6 Rx Options panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.1.7 Gen2 settings panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.1.8 Gen2 Anti-collision settings panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.2.1 Diagnostic Sweep Function panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4.2.2 Frequency Diagnosis panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.2.3 Direct Commands panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.2.4 Supply Options panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.3 Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4.3.1 Tuning File panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4.3.2 Automatic PreTuning before Scan panel . . . . . . . . . . . . . . . . . . . . . . . . 51
4.3.3 Automatic re-tuning during Scan panel . . . . . . . . . . . . . . . . . . . . . . . . . 52
4.3.4 Manual tuning (Reflected power radar) . . . . . . . . . . . . . . . . . . . . . . . . . 53
5 Tag settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
5.1 Information panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5.2 Functions panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5.2.1 Access Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5.2.2 Tag Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5.2.3 Set EPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
5.2.4 Set Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.2.5 Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5.2.6 Kill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.2.7 Generic command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.2.8 Tag authenticate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

List of figures UM2268
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List of figures
Figure 1. Hardware configuration of evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 2. ST25RU3993 GUI software installation wizard steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3. ST25RU3993 Reader Suite desktop icon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 4. ST25RU3993 Reader Suite - Connect Reader. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 5. ST25RU3993 Reader Suite - Connected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 6. Communication problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 7. Device manager - Detected ST25RU3993 reader board . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 8. ST25RU3993 Reader Suite - Firmware Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 9. ST25RU3993 firmware upgrade - Manual Device selection. . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 10. ST25RU3993 Reader Suite - Main window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 11. Reader information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 12. Reader and Scan information - Scanned tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 13. Scanned tags - Tag information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 14. Inventory - Round info panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 15. Scan panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 16. Select panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 17. Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 18. Region panel - EU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 19. Control menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 20. View menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 21. Help menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 22. Trace browser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 23. Unique Tag plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 24. Tag list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 25. Tag Associations - Global Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 26. Settings window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 27. Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 28. Context menu - ST25RU3993 Reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 29. Context menu – Scanned Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 30. Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 31. Reader Settings - Settings tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 32. Alternate antenna selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 33. TID location in Scanned Tags - Tag information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 34. Frequency panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 35. Channel list dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 36. Frequency hopping panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 37. Tx Option panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 38. Carrier sense panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 39. Adjust Sensitivity dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 40. RX filter dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 41. Rx option panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 42. Gen2 link setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 43. Gen2 Anti-collision setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 44. Adjust Q configuration dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 45. Reader Settings - Diagnostics tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 46. Diagnostic sweep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 47. Reader Settings - Tuning tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 48. Reflected Power Radar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

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Figure 49. Reflected Power Radar - Tuned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Figure 50. Tag Settings dialog window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 51. Tag memory table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Figure 52. Tag memory additional information table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 53. Set EPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 54. Set Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Figure 55. Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Figure 56. Kill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Figure 57. Generic command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Figure 58. Bit Sequence Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Figure 59. Tag Authenticate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 60. ISO29167-10 TAM1 Tag Authenticate Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 61. ISO29167-10 TAM2 Tag Authenticate Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Figure 62. ISO29167-13 TA.1 Tag Authenticate Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Figure 63. ISO29167-13 TAR Tag Authenticate Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

List of tables UM2268
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List of tables
Table 1. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

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1 Quick start guide
1.1 Hardware preparations
•Connect the coaxial cable with the antenna and with the antenna port 1 on the reader.
The antenna port 1 is activated by default. The antenna port 2 can be used as well but
it needs to be configured as output in the reader settings dialog.
•Connect the ST25RU3993 evaluation board to the host PC running the GUI via a
micro-USB cable.
Additionally, the ST25RU3993-HPEV requires to connect the DC power supply to the DC
jack (J14).
Note: Always make sure that a 50 Ωantenna or some other 50 Ωload is connected to the active
antenna port when RF power is switched ON.
Figure 1. Hardware configuration of evaluation board
Antenna coaxial cable (SMB)
USB connector DC supply (6V)

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1.2 Software installation
•To install the ST25RU3993 Reader Suite software, click on the installation file
ST25RU3993_GUI_vx-x-x-x.exe
•Follow the instructions of the software installation wizard
•Clicking on Finish at the end of the installation process, per default it starts the
ST25RU3993 Reader Suite
Figure 2. ST25RU3993 GUI software installation wizard steps

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1.3 First connection
In case the ST25RU3993 Reader Suite is not already running, start the ST25RU3993
Reader Suite.
Figure 3. ST25RU3993 Reader Suite desktop icon
Click on the Connect Reader button on the lower right corner of the main window, or go to
the menu Control and select Connect Reader. Alternatively, use the keyboard shortcut key
by pressing [Ctrl+A].
Figure 4. ST25RU3993 Reader Suite - Connect Reader
The application automatically scans all available COM ports for a connected ST25RU3993
evaluation board and displays the first detected connected board.
The ST25RU3993 Reader Suite also displays the version information and the status of the
connected board.

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Figure 5. ST25RU3993 Reader Suite - Connected
Note: The ST25RU3993 Reader Suite and the firmware of the connected board must have the
same version number. The version number of the GUI can be found by clicking on ‘About’
from the Help Menu. If version numbers do not match, the GUI prompts a notification to
update FW of the board. Follow the on-screen information and upgrade the FW using the
binary file located in the Firmware folder of the GUI installation folder.
If no ST25RU3993 based evaluation reader board is detected, an error notification is
displayed.
Figure 6. Communication problem
If the FW version is matching and still an error notification is displayed, check the USB cable
and verify that the ST25RU3993 evaluation reader is detected by the Windows®Device
Manager.

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Figure 7. Device manager - Detected ST25RU3993 reader board

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1.4 Firmware (FW) update
To update the firmware of the ST25RU3993 evaluation reader:
•Connect the ST25RU3993 reader board to the PC.
•Launch the firmware upgrade process by clicking on “Firmware Update”, which is
located in the ‘Help’ menu. Alternatively use the keyboard shortcut key [ALT+F].
Figure 8. ST25RU3993 Reader Suite - Firmware Update
•Follow the on-screen instructions.
•Select the COM port to which the ST25RU3993 board is connected to.
Figure 9. ST25RU3993 firmware upgrade - Manual Device selection
•After selecting the FW binary file that should be programmed, the update progress bar
displays the remaining time until finished.
Note: It is not required to click on the connect reader button in the GUI prior to the update of the
board FW.
Note: While the update process is ongoing do not disconnect the reader from the host computer. If
the update process is interrupted or fails the FW update can be restarted since STM32’s
on-board ROM bootloader is used.

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2 Main window
The ST25RU3993 Reader Suite is a dialog-based Windows GUI with the main window as
central user interface element. The main window is structured into the following GUI groups
•Menu
•Toolbar
•Reader and Scan info: Information of most recent inventory scan
•Inventory statistics: Reader and inventory configuration settings as well as real time
inventory round statistics
•Scan: Start/Stop inventory scan
•Control: Control actions
•Select: Configuration of the Gen2/ISO18000-63 or GBT29768 Select command to pre-
filter tags during the inventory scan
•Region: Shows the currently active region
Figure 10. ST25RU3993 Reader Suite - Main window

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2.1 Reader and Scan information
2.1.1 Reader information
It shows the information related to the current scan activity.
Figure 11. Reader information
Where:
•Unique Tags: Number of unique tags found by the reader during current or last scan
•Read count: Number of tag reads performed since application start or last reset of the
tag list.
•First Tag found after: Timestamp of first found Tag during this inventory scan. The
timestamp is relative to the inventory scan start.
•Last Tag found after: Timestamp of the tag found last.
•Reads per second [tags reads/sec]: Actual tag read rate averaged across all
inventoried tags of the current scan.
With a right click on the reader entry (ST25RU3993 Reader) a pop-up menu appears
providing access to the Reader Settings, the Register Map and allows to save and recall
reader settings. Conveniently the Reader Settings and the Register. The map can be
accessed through the buttons above the main window as well.
2.1.2 Scanned tags
The scanned Tags list shows the list of the inventoried Tags EPC values found during the
current scan. The list is updating itself and removes EPC entries from tags that couldn’t be
read anymore for a certain time. Before EPC entries are removed from the list, the entries
become grayed out.

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Figure 12. Reader and Scan information - Scanned tags
The EPC entries are organized in a tree-view and further Tag information can be accessed
by expanding the EPC entries.
2.1.3 Tag information
By expanding an EPC entry in the Scanned tags list further information about the Tag can
be accessed. The content of the additional information can be configured via the View
menu.
Figure 13. Scanned tags - Tag information

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Where:
•XPC: If supported by the Tag, the XPC value is displayed.
•Tag Identifier: The Tag TID information is displayed only if the protocol selection option
in the Reader Settings is switched to either:
– Gen2 – N with TID
– GB – 29768 with TID
•Timestamp: The last time the tag was inventoried relative to the start of the inventory
scan operation.
•Read Count: Number of inventories for this Tag
•Tag Information: AGC and I/Q values for this Tag
•Input Power: Either the linear or logarithmic RSSI value information for this Tag. The
values can be switched with the View menu
2.2 Inventory Statistics
The Inventory Statistics give real time information of reader parameters and anti-collision
slot status during an active scan.
Figure 14. Inventory - Round info panel
Where:
•Receiver Gain: The current receiver gain. The receiver gain value may change when
adaptive sensitivity is enabled during scan
•Frequency: The current RF carrier frequency that is used. The RF carrier frequency
changes with the defined allocation time when frequency hopping is enabled.

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Note: When exercising radiated transmissions local radio regulations and requirements must be
followed.
•Tuning State: Current status of carrier cancellation circuit
•Current Q: Current Q value of the anti-collision algorithm.
•Power Detector: DC Voltage of power detector.
•Empty Slots: Total number of empty slots during the inventory scan
•Collision Count: Number of slots with Tag collisions in total.
By enabling the extended statistic display from Menu view and clicks on Round Statistics,
more details are shown:
•Preamble Err: Number of detected Gen2 preamble communication errors in total.
•CRC Err: Number of detected CRC communication errors in total
•RxCnt Err: Number of detected RxCnt communication errors in total
•Hdr Err: Number of detected Header errors in total.
2.3 Scan panel
By clicking on the Start Scan button the reader starts to scan for tags.
Figure 15. Scan panel
On the right-hand side of the scan button there is an entry field to define the duration of the
scan operation after which transmission is stopped again.
There are two options:
•Seconds: After the defined time the scan operation is stopped automatically. The
maximum number that can be entered is 600.
Note: If a zero value is entered the scanning operation continues indefinitely.
•#rounds: After the defined number of inventory rounds are completed the scan
operation is stopped. The maximum number that can be entered is 600.
The progress bar indicates how much time or how many inventory rounds are left, to
perform, until the scanning automatically stops.
2.4 Select panel
With the select panel a Gen2 select command can be configured. The select command can
be configured either for EPC or TID values. The user can enter a mask, a mask start
address, and a length parameter. The Select command is sent before each inventory round
to pre-filter tags.

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Figure 16. Select panel
Where:
•Select: Enables/disables the selection of tags depending on the EPC/TID mask
entered
•EPC or TID: Defines the tag memory bank mask is compared
•Start address: Starts the byte at which the tag memory bank is compared. The default
value is 0.
For example: tag EPC = 2e-11-33; to select 11-33, the starting address is 1.
•Invert Mask: Allow to use the ~SL flag in query command SEL field
2.5 Control panel
Figure 17. Control panel
The control panel allows to trigger the following actions:
•Handle Actions: Activate/Deactivate tag actions if associated in the Global Actions
window. The user may associate a certain action if a tag has been successfully read.
For example: Play a sound if a certain tag has been read.
•Clear Tags: Clears tag entries from the main window. Useful to refresh the tag entries
while scanning for tags.
•Disconnect/Connect Reader: Disconnects or Connects a reader via UART.

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2.6 Region info
The ST25RU3993 Reader Suite automatically selects the frequency profiles, which is
needed to comply with local radio regulations and displays the current detected region in the
Region info area. The following image show the icon displayed when the ST25RU3993
Reader Suite is used in Europe.
Figure 18. Region panel - EU
It is possible to override the regional configuration within the Reader Settings dialog.
Note: When exercising radiated transmissions, local radio regulations and requirements must be
followed.

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2.7 Menu
2.7.1 Control
Figure 19. Control menu
Where:
•Connect/Disconnect Reader: Connects or disconnects the ST25RU3993 Reader
Suite with the ST25RU3993 evaluation board. Depending on the connection status, the
button connects or disconnects from the board.
•Start Scan: Starts scanning for tags.
•Clear Tags: Clears tag entries.
•Handle Actions: Enables GUI actions that could be associated with tags.
For example: GUI displays a picture or plays a sound upon reading a specific tag EPC.
•Reader Settings: Set the Reader configuration