Gr-uhd multi_usrp bug in 3.7.4+

GNU Radio
1

Hi,

Looks like either the syntax for instantiating multi_usrp has changed
(seems unlikely), or a bug was introduced, likely in 7/2-7/4’s recent
gr-uhd refactoring (1eaa96b, 350d285, fe58537, 3c42e79, 691bdaa). Sorry
I
haven’t gotten more specific than that. The attached flowgraph, when
used
with a USRP1 (yes, I know, I’m probably the only guy using one) returns:

RuntimeError: LookupError: IndexError: multi_usrp: TX channel 1 out of
range for configured TX frontends

Prior to the above commits the error does not occur.

Best,
Nick

2

On 09/04/2014 06:17 PM, Nick F. wrote:

Prior to the above commits the error does not occur.
I tried replicating this, not successfully. I don’t have a USRP1,
though. On an X300, it works fine.

Let’s take this discussion to the bug you filed.

M

3

On 09/07/2014 05:38 AM, Martin B. wrote:

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This also happens on a B100 with a TVRX2 card

–
Marcus L.
Principal Investigator
Shirleys Bay Radio Astronomy Consortium