Hi
I've used a CC2500 module(not my hardware design) in a project for several years now and they seem to work OK.
I recently needed to place the parts directly onto a PCB as space did not allow for a module.
I'm not an RF designer but followed the various application notes etc. as closely as possible.
The problem that I have is that I am getting GDO0 transitions in RX mode.
I'm seeing that the SYNC word is matching (which triggers GDO0), SFD set, and PQT reached, but there is no active transmitter.
When I check the FIFO RXBytes, I get 0, most of the time.
If the receiver is just picking up noise, how often would both the pre-amble and SYNC match?
Is this possible if I have a mismatched antenna?
Can nearby WiFi cause this?
I have tried changing channels, no difference.
The code is based in previous work which has been running for years, but a processor/project change could have introduced an error.
I've searched through other posts, but can't find an exact match for the problem.
Any suggestions?
Thanks
Andre
