I’ve seen a few threads touching on real time flow graph switching but I
haven’t been able to implement a solution to my particular problem.
2 USRPs + 4 RFX900 boards + 1 RF Source at 864MHz (European SRD band)
I want to run three specific programs one after another in real time.
- First program: USRP A transmits a calibration routine to the USRP B
- Second program: USRP B transmits a calibration routine to the USRP A
- Third program: Normal operation, the calibrated USRP A and USRP B
transmission from the RF
The purpose of the calibration routines is to determine the phase
between two RFX900 receiver oscillators in each USRP kit.
Currently when I run the three programs I have to disconnect each flow
before connecting up the next flow graph.
By tearing down the calibration flow graphs the RFX900 oscillator phases
reset to a random value and so the phases are unknown during normal
I would like to determine a way of moving from the calibration programs
normal operation without undoing the receiver frequency tuning.
A run time switch between the all possible sources and sinks would do
this would mean that all blocks could be instantiated from the start and
would would remain so during calibration and normal operation.
Any ideas/solutions would be greatly appreciated.
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