SW3683-v05.07.01和SW3683-v05.19.00 PN7462AU_ex_phExCcid关于ISO15693的bug

[onlineit]

单步执行发现在这里出现了问题：

            /** Assign the General Slot as CL and CL Slot as ICODE Card. */
            gphExCcid_sUsb_SlotInfo.bSlotType   = PH_EXCCID_USBCCID_CL_CHANNEL_NO;
            gphExCcid_sUsb_SlotInfo.bCLSlotType = PH_EXCCID_USBCCID_CL_TYPE_V;

            /** Get the ATR Information. */
            //phExCcid_UsbCcid_ATR_Felica_Mifare_ICode(0);

            /** Call the USB Processing Functions of the CCID Class. */
            phExCcid_Handle_USB_Process(psDiscLoopParams);

程序执行phExCcid_Handle_USB_Process(psDiscLoopParams)语句后将gphExCcid_sUsb_SlotInfo.bSlotType清零了，所以又不断地循环读卡，停不下来。但mifare和1443A-4的卡片又是正常的，不知道是什么问题？？？

SW3683-v05.07.01这个版本也是一样的结果，和SW3683-v05.19.00结果一样，在PN7462B开发板上，放上ISO15693的卡片，能读到8字节UID号，但四个指示灯（红绿黄蓝）停不下来，一直在闪，放mifare1卡和ISO14443A-4的CPU卡就可以停下来。感觉代码当中有错误，破坏了变量gphExCcid_sUsb_SlotInfo，让gphExCcid_sUsb_SlotInfo.bSlotType变成了0x00。

官方的PN7462AU_ex_phExCcid例程只测试了TypeA，其它都有点问题，bug挺多，有些地方莫名的错误。

比如：

 phExCcid_Handle_USB_Process(psDiscLoopParams);

在执行TypeA时，这条语句就没有问题，在执行ISO15693时，把结构体变量gphExCcid_sUsb_SlotInfo的值清零了，造成寻卡时卡放上去还是不断地读卡，

gphExCcid_sUsb_SlotInfo.bSlotType   被赋值为 PH_EXCCID_USBCCID_CHANNEL_NONE。

希望NXP官方能解决这个问题！！！

[Kan_Li]

I looked into the code, and found it is cleared only when the card is removed.

maybe your sample card has some issue?

Have a great day,
Kan

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[onlineit]

是因为执行函数phExCcid_Check_Presence_TypeV_Card时检测不到卡然后才执行phExCcid_UsbCcid_CardRemoved，问题出在卡检测函数检测不到卡，单步执行发现调用phpalSli15693_Inventory函数第一次、第二次都返回0x0000,第三次返回0x0201，需要将射频重新开关或调用phhalHw_FieldReset才能每次检测到卡，这个问题国外也有人遇到过，好象也没有解决。

链接如下：

https://community.nxp.com/thread/440898

引用如下：

To be more precise after phhalHw_FieldReset() I first called phpalSli15693_Inventory() and I got UID.

Then I call phpalSli15693_StayQuiet() - it is fine also, and I'm assuming this command is received only by "winner" tag.

Then I call phpalSli15693_Inventory again and got 0x0201 error. 

Maybe I should send phpalSli15693_StayQuiet only for UID received by inventory but there is no phpalSli15693_StayQuiet with UID parameter... 

[Kan_Li]

Thanks for the report! I am checking with the expert team for this issue, and will let you know when I have any more info.

Thanks for your patience!

Have a great day,
Kan

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