Hi,
We are trying to connect a XBEE 3 module with a FPGA and encountered following behavior :
With TH module FW 200C (firmware compatibility = 1): we could have SPI running (boot message, AT commands, RF packet received, …)
With same TH module (same wiring) FW 2012 : SPI is not working, ATTN never asserts. If DOUT is driven low, the module does not even boot properly
With a micromodule FW 200D (firmware compatibility = 2) : ATTN asserts after 5ms but never return data on MISO … and never de-asserts.
With same micromodule FW 2012 : ATTN never asserts… Even after sending commands of bunch of xFF with CLK…
The thing is that we could only find some recent modules on the market with firmware compatibility = 2.
Did any one ever faced that kind of issue?
Thanks for your support,
Regards,
Pierre