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AP1 RF transeiver can’t work normal

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Total Posts: 523

Joined 2012-11-15

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Hi, friend, I have got some problem in my RF project.

I use nRF24AP1 as the RF chip, and now I can send messages to it to reset,to assign channel, to set channel ID, to set ..., and to open channel, to send broadcast data or acknowledgemented data, and I have received the normal feedback, as RESPONSE_NO_ERROR, EVENT_TX, or EVENT_TRANSFER_TX_FAILED, etc. So I guess the ANT protocol engine in the chip works well.

The problem is the second node which I have configued as slave can't find the master (the transmitter), and I always got the message code EVENT_RX_SEARCH_TIMEOUT, and I have checked the parameters for more than two times and no error found.

I guess maybe the RF transceiver moduler in the chip can't work normally, or the there is something wrong with PCB layout of the antenna matching network?

I have got no Spectrum Analyzer, and therefore I have no idea of this problem, can anyone give me some ideas? thanks!


my configration for the master and slave nodes:
master node:
channel number:0
channel type: 0x10
network number:0
device number:1
device typeID:1
transmission type:1
slave node:
channel number:0
channel type: 0x00
network number:0
device number:0
device typeID:0
transmission type:0      
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Total Posts: 662

Joined 2012-10-09

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Did you assign the same network key to both nodes (network 0)?
Can you receive the data from your master using a USB stick and ANTware?

For assistance with PCB layout of the antenna matching network on the nRF24AP1, please contact Nordic Semiconductor.