PN7462AU reads ISO14443A card

[tuannguyen-aiot]

Currently PN7462 after reading ISO14443A card.
And when I take the card out of the tray, it takes about 3 seconds for the reader to receive the phExCcid_UsbCcid_CardRemoved signal.
Is there a way to customize this interval to 1 second or get the phExCcid_UsbCcid_CardRemoved signal as soon as the card is removed from the tray?

[KellyLi]

Hello @tuannguyen-aiot 

This situation requires online debugging to identify where the time is taking longer so that it is easy to find a solution to the problem. Therefore, it is recommended that you online debug the code to determine where it takes a long time to run.

BR

kelly

[tuannguyen-aiot]

I see this test function takes about 2 seconds, however I can't get into the function to debug

[KellyLi]

Hello @tuannguyen-aiot 

could you share the exact example of what you are using? in order to double-check in my side.

BR

kelly

[tuannguyen-aiot]

At example PN7462AU_ex_phExCcid, the order of operations for reading ISO14443 A tag will be as follows:

phExCcid_Poll_Main;

phExCcid_Handle_USB_Process;

phExCcid_Check_Presence_L4_Card;

status = phpalI14443p4_PresCheck(psDiscLoopParams->pPal14443p4DataParams);

status = phpalI14443p4_Sw_PresCheck((phpalI14443p4_Sw_DataParams_t *)pDataParams);

    PH_CHECK_SUCCESS_FCT(statusTmp, phhalHw_Exchange(

        pDataParams->pHalDataParams,

        PH_EXCHANGE_DEFAULT,

        bIsoFrame,

        wIsoFrameLen,

        &pIsoFrameResp,

        &wIsoFrameLen));

        status = phhalHw_PN7462AU_Exchange((phhalHw_PN7462AU_DataParams_t *)pDataParams,

                                            wOption,

                                            pTxBuffer,

                                            wTxLength,

                                            ppRxBuffer,

                                            pRxLength

                                            );

status = phhalRf_PCD_Exchg(pDataParams->pTxBuffer,

&pDataParams->pRxBuffer[pDataParams->wRxBufStartPos],

pDataParams->wTxBufLen,

&gphhalRf_RxParams);

At command position
status = phhalRf_PCD_Exchg(pDataParams->pTxBuffer,
&pDataParams->pRxBuffer[pDataParams->wRxBufStartPos],
pDataParams->wTxBufLen,
&gphhalRf_RxParams);

The program will wait here for 2 seconds to check the status of the card to see if it has been removed from the tray or not

[tuannguyen-aiot]

What are these PH_LOG commands? Can I comment them to speed up the program

[KellyLi]

Hello @tuannguyen-aiot 

Yes, it can be commented, but actually, it has been commented out in our routine. You can check whether the macro definition NXPBUILD__PH_LOG is enabled in your code. Disable NXPBUILD__PH_LOG and then these APIs can be commented out.

BR

kelly

[tuannguyen-aiot]

Hello, is there anyone?