Dear all,
First of all, thanks for your answers, they are really helpful.
Unfortunately I still am not sure how to proceed...
ChrisD.Rama, following that procedure, it seems to me that both chips are generating the same signal more than one using the excitation signal generated by the other, isn't it? I guess that the system can operate fine even if those signals are slightly different since they are generated by the same clock and starting at the same instant (thanks to the reset), therefore synchronized.
However, the case I am interested in is different, since there would be a system completely different from the AD2S1210 chip generating the signal, and since they are different systems, sharing the clock does not necessarily imply that the excitation signals will be generated equally, as it is the case if 2 AD2S1210 chips share the clock and are reset at the same time.
Summarizing, would it be possible to "switch off" the excitation generated by the AD2S1210, and let it read an excitation signal generated by a different system, plus the secondary signals from the resolver, and get the angle measurement from that?
Or maybe, as it is done in other chips with the voltage reference, applying a voltage signal directly on the EXC pins which overrides the generated signal?
Or the only solution is to generate a signal exactly equal to the one generated by the chip and starting them at the exact same time? This seems doable with 2 equal chips, but with 2 different systems seems difficult.
Thanks again for the help!