[USRP-users] problem with RFNoC probing

Jason Matusiak jason at gardettoengineering.com
Wed Jul 19 17:58:31 EDT 2017

Ah, that does sound like the issue. How do i know it is done initializing? You dont do something similar in the siggen block thoigh, right?
Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Jonathon Pendlum <jonathon.pendlum at ettus.com> Date: 7/19/17  5:34 PM  (GMT-05:00) To: Jason Matusiak <jason at gardettoengineering.com> Cc: "USRP-users at lists.ettus.com" <usrp-users at lists.ettus.com> Subject: Re: [USRP-users] problem with RFNoC probing 
Is your source block always trying to outputting packets? If so, your block could be trying to send packets while noc_shell is initializing. The easy fix is to add an enable register to hold off your block until after initialization.
On Wed, Jul 19, 2017 at 9:44 AM, Jason Matusiak via USRP-users <usrp-users at lists.ettus.com> wrote:
Could this have something to do with tlast?  I don't feel like it is the XML files, so I am limited to looking at the verilog, but it is pretty similar to my other blocks, so I am not sure what the problem could be.

It is odd to me that the probing is enough to cause issues, I am not sure what all gets executed in Verilog when the probe occurs.

On 07/17/2017 03:36 PM, Jason Matusiak wrote:

I am not sure what is going on, but while working on my new RFNoC block, I can't probe my X310 anymore.  When I do, I get this error:

[INFO] [CORES] Performing timer loopback test...

[ERROR] [UHD] Exception caught in safe-call.

  in virtual ctrl_iface_impl::~ctrl_iface_impl()

  at /home/jmat/rfnoc/src/uhd/host/lib/rfnoc/ctrl_iface.cpp:76

this->peek32(0); -> EnvironmentError: IOError: Block ctrl (CE_00_Port_30) packet parse error - EnvironmentError: IOError: Expected SID: 02:30>00:00  Received SID: 02:60>00:00

terminate called after throwing an instance of 'uhd::io_error'

  what():  EnvironmentError: IOError: [0/Radio_0] sr_write() failed: EnvironmentError: IOError: Block ctrl (CE_01_Port_40) packet parse error - EnvironmentError: IOError: Expected packet index: 1003 Received index: 1002

Aborted (core dumped)

Any idea where things are going off the rails?


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