Category: Software
Using ADI IIO Software I can transmit my own waveform but I wanted to use the py-adi iio library for doing show.
As per the guides for py-adi i wrote a code to transmit my own waveform (for testing purposes, I just made a sine wave for the time being)
import adi import numpy as np # Create radio sdr = adi.DAQ2(uri="ip:192.168.1.21") sdr.tx_enabled_channels = [0, 1] # Create a sinewave waveform N = 1024 fs = float(sdr.sample_rate) fc = 40000000 ts = 1 / float(fs) t = np.arange(0, N * ts, ts) i = np.cos(2 * np.pi * t * fc) * 2 ** 14 q = np.sin(2 * np.pi * t * fc) * 2 ** 14 iq = i + 1 * q fc = -30000000 i = np.cos(2 * np.pi * t * fc) * 2 ** 14 q = np.sin(2 * np.pi * t * fc) * 2 ** 14 iq2 = i + 1 * q # Send data to both channels sdr.tx([iq, iq2])
But every time i got this error:
IndexError Traceback (most recent call last)
/tmp/ipykernel_4053/1445205679.py in <module>
19 iq2 = i + 1 * q
20 # Send data to both channels
---> 21 sdr.tx([iq, iq2])
~/anaconda3/lib/python3.9/site-packages/adi/rx_tx.py in tx(self, data_np)
538
539 if not self.__txbuf:
--> 540 self.disable_dds()
541 self._tx_buffer_size = len(data) // stride
542 self._tx_init_channels()
~/anaconda3/lib/python3.9/site-packages/adi/dds.py in disable_dds(self)
81 def disable_dds(self):
82 """Disable all DDS channels and set all output sources to zero."""
---> 83 self.dds_enabled = np.zeros(self._num_tx_channels * 2, dtype=bool)
84
85 @property
~/anaconda3/lib/python3.9/site-packages/adi/dds.py in dds_enabled(self, value)
121 @dds_enabled.setter
122 def dds_enabled(self, value):
--> 123 self.__update_dds("raw", value)
124
125 def dds_single_tone(self, frequency, scale, channel=0):
~/anaconda3/lib/python3.9/site-packages/adi/dds.py in __update_dds(self, attr, value)
56 return
57 if attr == "raw":
---> 58 chan.attrs[attr].value = str(int(value[indx]))
59 else:
60 chan.attrs[attr].value = str(value[indx])
IndexError: index 4 is out of bounds for axis 0 with size 4
Can you help me out please?
