Hi,
I got a question on IQ Sampling with the direction_finding_connectionless_tx/rx example.
Settings:
Sample Spacing = 125 ns
Sample Sapcing (Reference Period) = 125 ns
DFEPACKET.MAXCNT = 656
CTE Length = 160 us
Switch Slot/Sample Slot Length: 2 us
=> Number of Sample Slots: 37
So 1 Sample/125 ns means 16 Samples/2 us Sample Slot and additionally 64 Samples during the reference period.
Problem:
Without the guard period and the switching slots, I should be able to get (Number of Sample Slots)*16 + 64 Samples, which evaluates to 656 Samples with 37 Sample Slots.
But I only get 101 Samples.
I am not using an antenna array (so only the chip antenna should do the sampling) , and have reduced the number of antenna patterns to {0x1, 0x2, 0x3} since 3 are mandatory for the code to work. My assumption is that still some antenna switching is performed in the code and I am looseing samples to that.
Question:
What are the correct settings to get IQ samples only from the chip antenna, and if this is not possible, how can this number of 101 Samples be explained that I receive ?
(I also don't necessarily need the IQ samples in the context of direction finding, so I am also happy with a solution that disables the funcionality of this feature.)
Best regards
