Hello everyone,
I need to create a bitfile for the X440 usrp (based on the X4_200 variant,
with uhd 4.9.0.0) which takes each rx port split it 2^n ports, each port go
to a ddc then to the eps.
While i managed to accomplish it when the number of the eps is equal/lower
than 8, each time when there is more than 8 eps i successfully passed the
creation of the bitfile but when trying to load (using the
uhd_image_loader) it on the usrp i get the following error at the end:

[ERROR] [RFNOC::GRAPH] Caught exception while initializing graph:
RfnocError: Specified destination address is unreachable: 1:0
Error: RuntimeError: Failure to create rfnoc_graph

I tried many variation (see the attached yml) -which include adding to all
eps True on the CTRL option, i tried to use only 2 eps with 8 in_ports and
more.

What may cause the problem?
it seems in the documation there is no limit for the number of the eps (or
ddc,splitter) as long as I managed to implement it successfully on the fpga.

thank you all in advance.

Attachment: x440_X4_200_1RX_splitTo16_ddc_only2eps_rfnoc_image_core.yml
Description: application/yaml

Attachment: x440_X4_200_1RX_splitTo16_rfnoc_image_core.yml
Description: application/yaml

Attachment: x440_X4_200_2RX_1RX_splitTo8_ddc_1RX_only_ddc_9epsTotal_rfnoc_image_core.yml
Description: application/yaml

Attachment: x440_X4_200_1RX_splitTo16_ddc_rfnoc_image_core.yml
Description: application/yaml

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