topic Re: About EMVCo L1 reset test in NFC

About EMVCo L1 reset test

SeanHu — Thu, 11 Dec 2025 06:09:57 GMT

Hi expert,

We encountered some abnormal responses when running the EMVCo L1 test project TAB113 (Reset Test) using a PN722x.

We tried inputs of 0x20, 0x00, 0x01, 0x01 and 0x20, 0x00, 0x01, 0x00, but the results were unsatisfactory.

Could you please provide the NCI commands for this reset test project? Or do you have any suggestions for this test project?

Thank you.

Re: About EMVCo L1 reset test

jimmychan — Mon, 15 Dec 2025 06:44:17 GMT

Your CMD is CORE RESET. I think the TAB113 is the RF Reset test.

Re: About EMVCo L1 reset test

SeanHu — Mon, 15 Dec 2025 07:02:01 GMT

Hi Jimmy,

Yes, we need a command to do RF Reset test.

Can you provide me NCI command to do the RF reset?

Thank you.

Re: About EMVCo L1 reset test

jimmychan — Mon, 15 Dec 2025 07:50:44 GMT

Please check the 14.7 SWITCH_RF_FIELD_CMD in PN722X NFC controller

Re: About EMVCo L1 reset test

SeanHu — Mon, 15 Dec 2025 15:41:52 GMT

Hi Jimmy,

Could you explain to me the purpose of payload field "Field On Config" ?

I don't understand the meaning of "Use collision avoidance" and "Disable collision avoidance".
Thank you.

Re: About EMVCo L1 reset test

SeanHu — Tue, 16 Dec 2025 08:21:27 GMT

Hi Jimmy,

I follow the 14.7 SWITCH_RF_FIELD_CMD in PN722X NFC controller , I add a function in kernel driver which writes {0x2F, 0x3F, 0x03, 0x32, 0x02, 0x00} to PN7220. The test result still failed.

I upload the test log for your referenct, do you have any comment on this error?

Thank you.

Re: About EMVCo L1 reset test

SeanHu — Tue, 23 Dec 2025 02:05:23 GMT

Hi Jimmy,

I followed the data sheet to issue LOAD_RF_CONFIG_CMD : 0x2F, 0x0E, 0x02, 0xFF, 0xFF. And I got following response : 0x4E, 0x0E, 0x01, 0x00.

And then I issued the SWITCH_RF_FIELD_CMF : 0x2F, 0x3F, 0x03, 0x32, 0x02, 0x00. And I got following response : 0x4F, 0x3F, 0x01, 0xF3, which indicate that "Invalid Load RF Configuration - LOAD_RF_CONFIG_CMD needs to be successful".

But from the previous command response, the LOAD_RF_CONFIG_CM was return "STATUS OK"

Do you have any suggestions for this unsuccessful response?