NFCのトピックRe: PN7150 NFC Forum Testing Issue

PN7150 NFC Forum Testing Issue

RaghuPiNS — Wed, 30 Dec 2020 18:00:49 GMT

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?

Re: PN7150 NFC Forum Testing Issue

Kan_Li — Wed, 06 Jan 2021 06:58:24 GMT

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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Re: PN7150 NFC Forum Testing Issue

RaghuPiNS — Wed, 06 Jan 2021 14:50:51 GMT

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!

Re: PN7150 NFC Forum Testing Issue

Kan_Li — Thu, 07 Jan 2021 09:34:15 GMT

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