Re: [Discuss-gnuradio] Custom C++ blocks on E310

Hi again,

Attached is the code that I’m using if anyone would like to try to replicate my issue. The test_msg_py.py file contains the custom python block code for a simple message sink. The test_msg_impl.cc, test_msg_impl.h, and test_msg.h files contain the custom C++ code for a message sink. The test.py file contains a simple flowgraph that connects a message strobe to my custom message sink blocks. When I run test.py with either of the blocks on my desktop, it works correctly. However, when I run test.py after cross compiling on the E310, it works correctly with the test_msg_py block and produces the following error with the test_msg block:

Could not find port: in in:

system

Bus error

Thanks,

Jessica

From: Discuss-gnuradio [mailto:discuss-gnuradio-bounces+address@hidden On Behalf Of Jessica Iwamoto
Sent: Wednesday, May 10, 2017 9:53 AM
To: address@hidden
Subject: [Discuss-gnuradio] Custom C++ blocks on E310

Hi all,

I have built custom C++ blocks that work on my PC, but don’t work when cross compiled for the E310. Specifically, I am trying to build a custom C++ block with a message port and cross compile it for the E310. I am using version 3.7.12 of GNU radio and the latest version of the SDK/toolchain for the E310. I have built a simple message sink block with just a message input port and put it in a flowgraph with a message strobe. My code runs correctly on my PC but when I run it on the E310, I get the error:

Could not find port: msg in:

system

Bus error

I am able to create custom python blocks with message ports and run them on the E310 and my PC with no issues. Additionally, I am unable to create custom C++ blocks with normal input and output streams on the E310 (the program seg faults when I try to connect the custom block to another block), but they run correctly on my PC. Any suggestions on what could be causing this?

Thanks,

Jessica

From:	Jessica Iwamoto
Subject:	Re: [Discuss-gnuradio] Custom C++ blocks on E310
Date:	Thu, 11 May 2017 22:15:45 +0000