NFCのトピックRe: G2iM+ Read TID with Serial Number

G2iM+ Read TID with Serial Number

RayT — Fri, 08 Sep 2023 06:10:26 GMT

Hi,

I've got issues with reading the complete TID (with Serial Number) from the G2iM+ Chips. I'm using an Alien ALR-9900 and do an inventory scan, but the TID is cut after the Model number.

For the Alien reader I use the GetTagList command.

I expect to read:
E200 680B 0000 400B 1234 5678 ABCD
Class+Msk XTID SERIAL_NUMBER......

I just get:
E200 680B

This means after the XTID Header and Serial Number is missing.

If I read the specific memory, the Serial Number is included (e.g. G2Read=2,0,0 with the Alien reader).

I need this number to identify the tags at inventory scan and hope somebody can help.

Thanks in advance!

Re: G2iM+ Read TID with Serial Number

Fabian_R — Tue, 12 Sep 2023 23:18:58 GMT

Hello, my name is Fabian,

I appreciate your interest in our products.

Could you please provide a little more information regarding this issue? What tool are you using for sending the commands?

How is the UCODE configured?

Is there any chance you could share a log of the command exchange?

Re: G2iM+ Read TID with Serial Number

RayT — Wed, 13 Sep 2023 07:34:55 GMT

Hello @Fabian_R, thanks for the reply.

Sure - here is more information:

I use Python with a telnet connection to an Alien ALR-9900 reader with this config:

Login with Username and Password and send these commands to config the reader
AntennaSequence=0\n
AcqG2TagData=1 32 1\n
TagListFormat=Custom\n
TagListCustomFormat=Tag:%k RSSI:%m Data:${G2DATA1}\n

Then I send the command Get TagList\n and get just a part from the TID (without the serial number).

I did not configure the UCODE in a special way, so they are all like I purchased them.
I assumed this should work - did I miss a part of the datasheet (UCODE G2iM and G2iM+ (nxp.com)?

The only log I have available it the following output (but it doesn't show much new):

Alien>Get TagList
Tag:E200680B0000000000000000 RSSI:2970.9 Data:0040

Alien>Get TagList
Tag:E200680B0000000000000000 RSSI:1771.2 Data:0040

Alien>Get TagList
Tag:E200680B0000000000000000 RSSI:1661.7 Data:0040

Alien>Get TagList
Tag:E200680B0000000000000000 RSSI:2076.9 Data:8040

Alien>Get TagList
Tag:E200680B0000000000000000 RSSI:3393.4 Data:8040

So I guess I miss some configuration of the UCODE from the datasheet?

Greets, Tobias