NFC Reader/Writer ACR122U PS/SC with SDK

Hello Expert,

I bought ACR122U device and I have SDK with sample code. The device came with PS/SC USB port but the sample code require Com port. Do you know how I can convert PC/SC to be virtual com port ?
Thank you,
trazodoneAsked:
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Gerwin Jansen, EE MVETopic Advisor Commented:
The USB device will present it to the system as a COM port, most likely COM3 or COM4. Is the NFL device not recognized? Do you get any error?
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trazodoneAuthor Commented:
Device has no error and is able to use PCSC function but I did not see any com port presented in windows device manager.
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Gerwin Jansen, EE MVETopic Advisor Commented:
Any unknown hardware in the list with yellow question marks? You do see the USB device? Any reference to that USB device?
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trazodoneAuthor Commented:
No I don't see any yellow question marks. I can see my NFC reader in the list. Please see image attached.
acs.PNG
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Gerwin Jansen, EE MVETopic Advisor Commented:
The NFC reader I have is showing just as a device (like yours) but is showing the COM port (USB->serial) under Ports (COM &LPT) - can you check there if you see a COM port there? Mine is called USB Serial Port (COM4)
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trazodoneAuthor Commented:
After looking around. I did not see any COM port. Please see image attached. Am I missing something?
acs.PNG
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Gerwin Jansen, EE MVETopic Advisor Commented:
Your reader does not 'supply' a serial port apparently, then how can your source code think it needs a serial port? Did you get the source from the manufacturer's site or elsewhere? Sure there is no 'USB' source available?
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trazodoneAuthor Commented:
Hello,

The source code examples came with SDK is required COM port. But some tools from SDK has an option to select both COM port and PCSC.

My reader is ASC ACR122U-A9

Thanks
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Gerwin Jansen, EE MVETopic Advisor Commented:
>> The source code examples came with SDK is required COM port.
You have the correct SDK? It would surprise me if you get a reader with SDK that does not work.

Did you install the correct driver? I guess you did, if not get it here: http://acs.com.hk/en/products/3/acr122u-usb-nfc-reader/

Where did you get the SDK?
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trazodoneAuthor Commented:
Hello,

I have got SDK from my friend. I realized that it is SDK for other model (ACR122S).
Thank you for guiding me.
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trazodoneAuthor Commented:
Thank you.
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