Hi all, I'm working on a synchronization block to allow the transmitter and receiver to co-locate on the same motherboard and work alternatively, transmitter working for 0.5 second then receiver working for 0.5 second, and then repeat this process.
I'm using USRP1 and LFTX/RX to develop my transmitter and receiver, which work
well when transmitter and receiver are plugged on two USRP1 mother board.
I'm trying to write fpga register FR_MASTER_CTRL to enable transmitter board or
receiver board every 0.5 second, in order to implement tx and rx working
alternatively. The functions defined for enabling tx and rx is shown as
followed.
def write_mode(self):
self._u._write_fpga_reg(FR_MASTER_CTRL, self.mode)
def enable_tx(self, value):
if value:
if self.verbose:
print "Enabling transmitter."
self.mode |=bmFR_MC_ENABLE_TX
self.transmitting = True
else:
if self.verbose:
print "Disabling transmitter."
self.mode &=~bmFR_MC_ENABLE_TX
self.write_mode()
def enalbe_rx(self, value):
if value:
self.mode |=bmFR_MC_ENABLE_RX
self.write_mode()
self.rcvr.start()
self.receiving = True
else:
self.rcvr.stop()
self.mode &=~bmFR_MC_ENABLE_RX
self.write_mode()
self.receiving = False
def start(self):
if self.tx:
self.enable_tx(True)
if self.rx:
self.enable_rx(True)
However, i got an AttributeError
File "/home/john/gnuradio/gr-iono/usrp_ionsonde_control.py", line 197, in
set_reset
self.write_mode()
File "/home/john/gnuradio/gr-iono/usrp_ionsonde_control.py", line 166, in
write_mode
self._u._write_fpga_reg(FR_MASTER_CTRL, self.mode)
File "/usr/local/lib/python2.5/site-packages/gnuradio/gr/hier_block2.py",
line 50, in __getattr__
return getattr(self._hb, name)
AttributeError: 'gr_hier_block2_sptr' object has no attribute '_write_fpga_reg'
What's the problem may be? Could this fpga reg be written every half second or
even 20 microseconds?
Thank you so much for help.
Yan
<<attachment: ynie3.vcf>>
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