User's Manual
Table Of Contents
- TRF7970A Evaluation Module (EVM)
- 1 TRF7970A EVM Description
- 2 Using the TRF7970A EVM With PC GUI
- 2.1 USB Driver
- 2.2 TRF7970A EVM GUI Startup
- 2.3 ISO15693 Tab
- 2.3.1 Inventory (Command Code 0x01)
- 2.3.2 Read Single Block (Command Code 0x20)
- 2.3.3 Write Single Block (Command Code 0x21)
- 2.3.4 Lock Block (Command Code 0x22)
- 2.3.5 Read Multiple Blocks (Command Code 0x23)
- 2.3.6 Write Multiple Blocks (Command Code 0x24)
- 2.3.7 Stay Quiet (Command Code 0x02)
- 2.3.8 Select (Command Code 0x25)
- 2.3.9 Reset to Ready (Command Code 0x26)
- 2.3.10 Write AFI (Command Code 0x27)
- 2.3.11 Lock AFI (Command Code 0x28)
- 2.3.12 Write DSFID (Command Code 0x29)
- 2.3.13 Lock DSFID (Command Code 0x2A)
- 2.3.14 Get System Information (Command Code 0x2B)
- 2.3.15 Get Multiple Block Security Status (Command Code 0x2C)
- 2.3.16 TI Custom Commands
- 2.4 ISO14443A Tab
- 2.5 ISO14443B Tab
- 2.6 FeliCa Tab
- 2.7 Find Tags Tab
- 2.8 Registers Tab
- 2.9 NFC-PP Tab
- 2.10 Test Tab
- 3 Abbreviations
- 4 References
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Using the TRF7970A EVM With PC GUI
In time sensitive applications in which the number of tags that are presented to the field should be one at
one time but could be from 1 to n, polling or looking for tags using the single slot method first might be
effective. If a collision is detected, the firmware could then change the tag request flags to sixteen slot
method and then proceed as described here.
To perform sixteen slot Inventory using the GUI:
1. Select the radio button for Inventory.
2. Select the Tag Flags accordingly (see Figure 5 for one example).
3. Click Set Protocol.
4. Place tags or transponders near enough to the TRF7970A EVM antenna to be read.
5. Click Execute.
See Figure 5 and Figure 6 for example results of multiple tags in the field without and with collisions,
respectively.
NOTE: For graphics brevity, only four tags are shown.
Figure 5. Sixteen Slot Inventory Command (Four Tags in Field With No Collision)
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SLOU321– August 2011 TRF7970A Evaluation Module (EVM)
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