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EMS-TU-Ilmenau / sllurp

LLRP interface implemented in Python
GNU General Public License v3.0
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SPI Commands #4

Closed smosanu closed 1 year ago

smosanu commented 2 years ago

Hello,

Please help me with any helpful direction on how to interface with the SPI Commands of an RFID tag. I am using an Impinj R1000 and can test with reader.startAccess(readWords/writeWords) the register values and Temperature sensor data of an EM4325 (datasheet). However, I would like to use it in the mode "EM4325 as SPI Master and another component as SPI Slave". Fr that, I have to interface with the tag using SPI Commands that are enabled by the SendSPI Command with Command Code "E002". However, sllurp seems to have no such attribute "command code". I attempted to use the Register File Pages to write to and read from, though not successfully.

Am I missing something? Anyone knows how to switch the write/read commands to SPI commands?

Thank you!

beustens commented 1 year ago

sllurp implements the LLRP protocol to access the reader. The reader can access the tag via EPC Gen2 protocol over air. SPI is not an air protocol and completely unrelated to this project, you have to connect a microcontroller to the RFID chip itself on its SPI interface (pins 3, 4, 5, 6) and implement the communication.