RFID application.(Reader and Tag)

[Pradeep Chl]

I have a RFID application in which there is a Reader and a tag. The Reader reads the tag information once the tag is in the Reader's range. The tag is an active tag.

The Reader has MCU-STM32F407ZET6 and RF Transceiver nRF24L01P-R7 while the tag has nRF24LU1P-F32Q32-T.

Does these two chips(nRF chips) talk to each other. ? What kind of communication protocol should be used.? Is it possible to have the library of the communication protocol and also test code.?

I am using a Linux platform (bare metal programming) to compile my code. (NOT Keil or IAR Embedded)

[awneil]

Yes, there is an answer (and a comment to back it up) - look again: devzone.nordicsemi.com/.../

Your question doesn't seem to make sense:

Are you trying to design this system?

Or is this an existing system that you're working on?

Or what?

Have you studied the documentation for the nRF chips?

• www.nordicsemi.com/.../nRF24L01P

• www.nordicsemi.com/.../nRF24LU1P

[Pradeep Chl]

Yes, there is an answer to the one pointed by you. But I was referring to the one pointed by RK.

[Pradeep Chl]

I am reading about Enhanced Shock burst protocol in the data sheet pointed by nRF24L01+. I am not designing the system. I have to understand the protocol between the two chips. Are the two chips designed for communication with each other? Is it possible to have the library of the communication protocol and test code.?

[awneil]

As already explained in the other answers, they are radio transceivers - it is up to the system designer to choose & implement whatever protocol they wish to achieve their design goals.

If you're not designing the system, then you will have to ask the designer about their design!

[Hung Bui]

Hi Pradeep,

Yes, they can talk to each other. All our nRF24L, nRF5x chip can talk to each other as they work in the same ISM band 2.4GHz.

The nRF24L01P is pretty easy to use, you can simply base on the datasheet to know how to use Shockburst protocol.

For the nRF24LU1+, we provide the nRFGo SDK with example for Enhanced Shockburst protocol. It should work out of the box.

I assume you will connect the nRF24LU1+ to a PC or something via USB when operating.

I'm not aware of something ready on Linux that you can use to compile code for the nRF24Lx.