This design uses the chain down-converter 5/7 and up-converter 7/5 using streaming interfaces. There is no repetition count indicated in the graph code.
make VERSION=0 clean stream aie
As exposed in the console window, the default repetition rate for the two kernels is 1:
************************************************************************
INFO: [aiecompiler 77-5917] Repetition count for G.G2_norep.k1 is 1.
INFO: [aiecompiler 77-5917] Repetition count for G.G2_norep.k2 is 1.
************************************************************************
You can run the simulation with a time limitation:
make STOP=10000 aiesim_stop
The Trace view appears in the following image:
The previous image shows that the down-converter is running four times for the four iterations, but the up-converter is waiting for new data. The down-converter gets 2240 samples and produces 1600 samples. The up-converter is waiting for 2240 samples, but gets only 1600. Therefore, it waits for the remaining block of data, thus generating a stream stall event.