Re: [Discuss-gnuradio] controlling flowgraph

[Nemanja Savic]

When want to use method Start, that is defined for top_block_gui class, i always get this error:

AttributeError: 'gr_top_block_sptr' object has no attribute 'Start'
address@hidden GRC]$ gvim /usr/local/lib64/python2.6/site-packages/gnuradio/gr/top_block.py

But it is clear that tb is of top_block_gui, and there is no error for using Run method.

Why is this so?

On Fri, Oct 11, 2013 at 3:26 PM, Nemanja Savic <address@hidden> wrote:

I still can't find solution so any suggestion would be good.

Best,
Nemanja

On Thu, Oct 10, 2013 at 5:26 PM, Nemanja Savic <address@hidden> wrote:

Ok, I have found button :), but the problem is now following. Part of my script looks like this:

def aaa(a):
    global state
    state = 1

state = 1
data = ""> if __name__ == '__main__':
    parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
    (options, args) = parser.parse_args()
    tb = top_block()
    while(True):
        if state == 1:
            print "aa"
            state = 0
            data.append(0)
            tb.blocks_vector_source_x_0.set_data(data)
            tb.run()
            print tb.blocks_vector_sink_x_0.data()

aaa is callback function called when the button is pressed.

What i want to achieve is following:

when flowgraph starts i don't want any transmiton, I just want to see gui.

when i press the button, then one frame should be sent.

when i press again the button another frame should be sent.
...

Is this possible? In example above I don't see gui at all.

On Thu, Oct 10, 2013 at 12:40 PM, Nemanja Savic <address@hidden> wrote:

Hi all guys,

I wanted to implement a ask transmitter and a button for triggering transmition of a single frame of data. My idea was to do that with a sort of state machine and a button, but as far as i can see there is no button in wx gui blocks. How do uo usually do this?

Many thanks,

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Nemanja Savić

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Nemanja Savić

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Nemanja Savić

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Nemanja Savić