[USRP-users] E310 - Maximal rate for rx_samples_to_file example

רועי royk at eng.gov.il
Mon Mar 21 06:37:03 EDT 2016


What is the maximal sampling rate possible for sampling to a file without getting overflows (E310)?

I ran the rx_samples_to_file example on the E310 with the default sampling rate (1MHz), and after about a minute I started getting overflows ("O"s).

Additional info:

1.       The E310 image is "fido-rfnoc-test" (http://files.ettus.com/e3xx_images/alpha/fido-rfnoc-test/)

2.       The FPGA image is "uhd-images_003.010.rfnoc-282-gab4e9eaa" (http://files.ettus.com/binaries/images/)

3.       The "rx_samples_to_file" example was cross-compiled from "rfnoc-devel" branch (https://github.com/EttusResearch/uhd/tree/rfnoc-devel), following the instructions in http://files.ettus.com/manual/page_usrp_e3x0.html#e3x0_sdk.

4.       The micro SD card is UHS speed class 1 (10MB/s).

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