Hi everyone
I want to make a receiver that can send the received data back to the
transmitter.
So I defined my top block as follows:
class my_top_block(gr.top_block):
def __init__(self, modulator, demodulator, rx_callback, options):
gr.top_block.__init__(self)
options.tx_freq=24e8
options.rx_freq=25e8
options.bitrate=5e5
options.tx_gain=17.5
options.rx_gain=49.5
# Get the modulation's bits_per_symbol
args = modulator.extract_kwargs_from_options(options)
symbol_rate = options.bitrate /
modulator(**args).bits_per_symbol()
self.sink = uhd_transmitter(options.args, symbol_rate,
options.samples_per_symbol,
options.tx_freq, options.tx_gain,
options.spec, options.antenna,
options.verbose)
self.source = uhd_receiver(options.args, symbol_rate,
options.samples_per_symbol,
options.rx_freq, options.rx_gain,
options.spec, options.antenna,
options.verbose)
options.samples_per_symbol = self.source._sps
self.txpath = transmit_path(modulator, options)
self.rxpath = receive_path(demodulator, rx_callback, options)
self.connect(self.txpath, self.sink)
self.connect(self.source, self.rxpath)
The problem is that if I define self.source after self.sink, I can only
receive data, while if I define self.sink after self.source, I can only
send data.
My device is USRP N210.
Best regards!
Dong Wang
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