ST25 NFC/RFID tags and readers

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Resolved! Demo CR95HF-A ISO 15963 max range

Posted on January 23, 2014 at 11:23Hi, I'm trying to achieve the maximum reading range from my demoboard CR95HF-A with a ISO 15693 tag (LRi2K). Until now I've obtained best results with modulation-index 10% and gain 34dB by writing 0x50 to ARC_B reg...

pieretti by Associate II
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Resolved! M24LR04E-R time to ready from power-up?

Posted on March 17, 2014 at 12:24Hi all, I'm looking for an indication of worst-case time-to-ready: i.e. from power-up - assume external VCC, not induced power - to fully commandable from I2C. I've searched the datasheet (DocID022208 rev from end t...

Resolved! Bug in CR95HF development software

Posted on March 19, 2014 at 13:44First of all: I really like the software for DEMO-CR95HF-A. But there is an issue with the scripting tool: The command CR95HF_ISO14443-A_SEND_APDU, 00A4040007a0000000030000 should be translated intoCR95HFDLL_SENDRECV...

Resolved! m24lr64e first time programming/ reading

Posted on March 06, 2014 at 14:50Hi, We have a custom board made using M64LR64E. Using an android phone, without powering up, will the EEPROM work directly as a NFC tag? Or should it be programmed/ configured first using I2C? We are unable to detec...

muralik by Associate
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Resolved! presence of multiple tags

Posted on March 05, 2014 at 21:04Hi. I am using CR95HF. I need to identify the presence of multiple  iso15693 tags ( placed on the same time ). I need to know how the amount of tags only. Is ther a command or algorithm ?. Please Advise. Ephraim Oved...

eoved by Associate
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Resolved! write time ?

Posted on February 17, 2014 at 09:54hi , 1.what is the page size in M24SR-16  ?  in the datasheet its declared  that    write time for page in I2C = 5ms , write time for up to 264 bytes =150ms 2.Is it normal after writing 5 bytes to the  M24SR , i a...

eyals111 by Associate II
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Resolved! Coil calculation on a multilayer print

Posted on August 16, 2013 at 14:59Hi all Are there any instructions to calculate multilayer coil's like this: http://www.st.com/web/en/catalog/tools/FM116/SC1444/PF251920?s_searchtype=keyword. I would like to do the same but with 4 Layers. Thank's ...