Hello, to try out RFNoC on my X440 under UHD 4.8 I followed this instruction:
https://kb.ettus.com/Getting_Started_with_RFNoC_in_UHD_4.0 Building the default FPGA Image via x440_X4_1600_rfnoc_image_core.yml works. But when I try to continue with “Example: Adding an FFT Block“ it doesn’t work anymore. 1\.) Although the tutorial states that “All SEPs are automatically connected to the CHDR crossbar, so this effectively connects the FFT block to the crossbar, allowing it to communicate with anything on the RFNoC network.“, I will get an error that it needs an 10x10 matrix for crossbar_routes. So I fixed this with the following matrix: crossbar_routes: \# eth0 eth2 dma ep1 ep3 \# eth1 eth3 ep0 ep2 - \[ 1, 0, 0, 0, 0, 1, 1, 1, 1, 1 \] # eth0 (QSFP Port 0, Lane 0) - \[ 0, 1, 0, 0, 0, 1, 1, 1, 1, 1 \] # eth1 (QSFP Port 0, Lane 1) - \[ 0, 0, 1, 0, 0, 1, 1, 1, 1, 1 \] # eth2 (QSFP Port 0, Lane 2) - \[ 0, 0, 0, 1, 0, 1, 1, 1, 1, 1 \] # eth3 (QSFP Port 0, Lane 3) - \[ 0, 0, 0, 0, 1, 1, 1, 1, 1, 1 \] # dma - \[ 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 \] # ep0 (radio0.0) - \[ 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 \] # ep1 (radio1.0) - \[ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0 \] # ep2 (replay0.0) - \[ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0 \] # ep3 (replay1.0) - \[ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0 \] # ep3 (fft) 2) The image build fails after roughly 7 hours, with the error: CRITICAL WARNING: \[Route 35-39\] The design did not meet timing requirements. Please run report_timing_summary for detailed reports. Do you know where I did a mistake in understanding the tutorial? Thanks!
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