Other Parts Discussed in Thread: MSP-EXP430G2ET, DLP-7970ABP
I'm using the DLP-RFID2, which references this firmware design guide:
I'm attempting to read from a 14443-A tag.
First, I send the A0 REQA command which returns the tag's UID and SSI.
Then I send the A2 SELECT command with the discovered UID. This command doesn't seem to return the SAK, or anything for that matter. This might be pertain to this forum response that I found:
If I then try an NFC Type 2 Read, I don't get anything back.
However, if I send the A0 REQA and follow that up with a Type 2 Read, I can successfully read from the tag.
My questions are as follows:
1) Does the SELECT command do anything? If not, is there a way to get it to do something?
2) Can the REQA command find more than two tags simultaneously?