MCUXpresso GeneralのトピックRe: Parameter Setting Tx Antenna

Parameter Setting Tx Antenna

sachin_singh — Mon, 23 Sep 2019 12:26:52 GMT

Hi,

I am working on the PN7462AU card reader for card reader.

I am facing multiple time card detection of same card which is present in antenna field (also while keeping remained in contact direct with antenna plate to it detect multiple times).

I am using "PN7462AU-FW_v05.07.01_Full" SDK for it.

For theses I have made some changes in "phFlashBoot.c" files with following :

/* PMU TXLDO initialization */
wStatus = phhalPmu_TxLdoInit(1, 0x05, 0x00, gpkphCfg_EE_Boot_TxLdoParams->wWaitTime,
gpkphCfg_EE_Boot_TxLdoParams->bOverCurrentEnable);
PH_BREAK_ON_FAILURE(wStatus);

So, Is their something that I am missing and beacuse of that I am getting error for multiple time card detection in range of communication as I mentioned above.

All your support and response are highly appreciative and grateful.

Looking forward for kind support and solutions ... !!!

Thanks

Re: Parameter Setting Tx Antenna

Kan_Li — Thu, 26 Sep 2019 07:56:49 GMT

Did you use OM27462 in your test? Did you comment out the changes that you made and try again? The default parameters for TXLDO configuration is as below:

Looks like different from your settings, Have you modified the hardware of the board as well? Please kindly clarify.

Have a great day,
Kan

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Re: Parameter Setting Tx Antenna

sachin_singh — Thu, 26 Sep 2019 09:59:56 GMT

Hi Kan_Li‌,

Glade to your reply on thread ... !!!

Yes, I have used OM27462CDKP this one.

And after that I start work on the custom board, In which I have made the above change.

On making above changes I was able to detect card in custom board, otherwise it was unable to detect Mifare Classic card of 1k.

After making all these changes it starts to detect the card, but the same card detects multiple times at same time in range of antenna.

After applying your suggested changes into register it stopped detecting the cards.

And yes I am using custom board. (Suggest me if, I have to change some parameter if required any)

It might be possible is there any changes in the settings of hardware on board as well too.

Please share your valuable point suggestion for the error ...

Looking forward for your response .. !!!

Regards

Re: Parameter Setting Tx Antenna

Kan_Li — Fri, 27 Sep 2019 05:21:26 GMT

Is it possible to share the custom board schematic for a review? I will try to reproduce your issue on my OM27462 board.

Have a great day,
Kan