TAGnology_TAGid -125kHz_Protocol.pdf - RFID Webshop

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Communication Reader-Host Rev. 1.2 February 1999 3.7.7 HT1_Halt_Selected Puts the selected HITAG 1 transponder into Halt Mode, which means that this transponder remains silent until it leaves and reenters the RF field. You can reset a transponder previously turned off by HaltSelected using the command HFReset or putting it out of RF field. C-Function: void HT1_Halt_Selected (void); Header-File: Hitag1.H Serial protocol: HOST - READ/WRITE DEVICE 0x02 'H' 0x4A READ/WRITE DEVICE - HOST 0x02 Status BCC Status: 0 ... no error -1 ... SERIAL ERROR -8 ... ACKNOWLEDGEMENT ERROR Protokoll HTRM801 V1.2/C Page 22 (107)
February 1999 Rev. 1.2 Communication Reader-Host 3.7.8 HT1_Read_Page Reads a page (4 bytes) of a selected HITAG 1 transponder. If no transponder is selected, a NOTAG message will be generated even if there is a transponder in the communication field of the antenna. Using the byte -crypto- you define whether you want to work in Plain or in Crypto Mode. Access to the secret area is only possible in Crypto Mode after a mutual authentication. If -crypto- equals 1 (Crypto Mode) and you did not run an authentication procedure before, Status will be set to -9. C-Function: void HT1_Read_Page (BYTE_T crypto, BYTE_T pagenr, char *data); Header-File: Hitag1.H Serial protocol: HOST - READ/WRITE DEVICE 0x04 'P' crypto pagenr BCC crypto: pagenr: 0x00 ... Plain Mode 0x01 ... Crypto Mode page number READ/WRITE DEVICE - HOST n+2 Status data[0] ....... data[3] BCC n = 0 if an error occurred (error code in Status). n = 4 if data were read from a transponder (Status = 0). Status: 0 ... no error -1 ... SERIAL ERROR -3 ... NOTAG -9 ... CRYPTOBLOCK NOT INIT Page 23 (107) Protokoll HTRM801 V1.2/C
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TAGnology_TAGid -125kHz_Protocol.pdf - RFID Webshop

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