PN7150 NFC Forum Testing Issue

[RaghuPiNS]

We are using PN7150 in a design. And we are int the process of testing with respect to NFC Forum.

And its failing with on the below tests.

Our test setup is a custom PCB with an antenna and PN7150. And for the testing we are using with a Raspbery PI and your linux_libnfc-nci  drivers [Configured with respect to your kit]. And for this particular test we are using the Demo app provided in your software stack.

And it is failing the following Analogue test by the NFC forum

• Power Reception Test
• Modulation Polling Device to Listening Device
• Load Modulation Amplitude
• Radio Frequency Power and Signal Interface

Did somebody have a similar issue with this chipset? Can anyone point us in the right direction?

[Kan_Li]

Hello @RaghuPiNS ,

For NFC Forum Analog testing, the usual Linux libnfc-nci demo application should be fine. 

Regarding Type F testing, it may be required to set the SENSF_REQ baudrate to 424kbps (it is 212kbps by default). This can be done libnfc-nxp-pn548.conf file updating PF_BIT_RATE @0x18 parameter (see below in bold

#############################################################################
# Core configuration settings

NXP_CORE_CONF={ 20, 02, 2B, 0D,
   28, 01, 00,
   21, 01, 00,
   30, 01, 08,
   31, 01, 03,
   33, 04, 01, 02, 03, 04,
   54, 01, 06,
   50, 01, 02,
   5B, 01, 00,
   60, 01, 0E,
   80, 01, 01,
   81, 01, 01,
   82, 01, 0E,
   18, 01, 02
}

Hope that helps,

Have a great day,
Kan

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[RaghuPiNS]

Thanks for  your solution. We are trying it right now

The device is failing for all the below tests

• Power Reception Test for NFC-B at Minimum
• Power Reception Test for NFC-B at Nominal Conditions
• Power Reception Test for NFC-B at Maximum Conditions
• Power Reception Test for NFC-V at Minimum Conditions
• Power Reception Test for NFC-V at Nominal Conditions
• Power Reception Test for NFC-V at Maximum Conditions
• Signal Interface Polling Device to Listening Device
• Modulation Polling Device to Listening Device at Limit Conditions– NFC-B
• Load Modulation Amplitude for NFC-B
• Load Modulation Amplitude for NFC-F
• Load Modulation Amplitude for NFC-V
• Polling Device Test Cases:
• Radio Frequency Power and Signal Interface:
• Power Transfer Polling Device to Listening Device
• Reset Characteristics Measurement
• Signal Interface Polling Device to Listening Device
• Modulation Polling Device to Listening Device – NFC-A
• Modulation Polling Device to Listening Device – NFC-B
• Modulation Polling Device to Listening Device – NFC-F
• Load Modulation Amplitude Reception Test for NFC-A
• Load Modulation Amplitude Reception Test for NFC-B
• Load Modulation Amplitude Reception Test for NFC-F

Does the device has to configured for each test?

Do you have a software example?
Thanks!

[Kan_Li]

Hi @RaghuPiNS ,

The device needn't be configured for each test, the above changes should be enough. and the DemoApp can be used for that purpose. Maybe you can try with OM5578 and compare? 

Have a great day,
Kan

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- We are following threads for 7 weeks after the last post, later replies are ignored
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