Float to string conversion error on python

[shiraznantogma]

I have this python code as a signal generator. But it keeps giving me string to float conversion error.

import sys
import redpitaya_scpi as scpi
import numpy as np
import matplotlib.pyplot as plt

# Define signal parameters
wave_form = 'sine'
freq = 10000
ampl = 1

# Connect to the Red Pitaya device
rp_s = scpi.scpi(sys.argv[1])

# Reset the signal generator settings
rp_s.tx_txt('GEN:RST')

# Configure the signal generator
rp_s.tx_txt('SOUR1:FUNC ' + str(wave_form).upper())
rp_s.tx_txt('SOUR1:FREQ:FIX ' + str(freq))
rp_s.tx_txt('SOUR1:VOLT ' + str(ampl))

# Enable output
rp_s.tx_txt('OUTPUT1:STATE ON')
rp_s.tx_txt('SOUR1:TRIG:INT')

# Generate a time axis
sample_rate = 125000000 # Sample rate of the Red Pitaya
duration = 0.1 # Duration of the signal in seconds
num_samples = int(sample_rate * duration)
time_axis = np.arange(0, num_samples) / sample_rate

# Query the generated waveform data
try:
rp_s.tx_txt('SOUR1:DATA:DATA?')
data_string = rp_s.rx_txt()
print(data_string)
data_string = data_string.strip('{}\n\r').replace(" ", "").split(',')
print(f"Received data: {data_string}")
data = list(map(float, data_string))
except Exception as e:
print(f"An error occurred: {e}")

data = list(map(float, data_string))
# Plot the generated signal
plt.figure(figsize=(10, 4))
plt.plot(time_axis, data)
plt.xlabel("Time (s)")
plt.ylabel("Amplitude")
plt.title("Generated Signal")
plt.grid(True)
plt.show()

[redpitaya]

Hello shiraznantogma,

Thank you for writing to us.

A couple of commands on the acquisition side are missing in your code which start the acquisition and define the trigger type. Also, the command for acquiring data from the Red Pitaya should be:

ACQ:SOUR1:DATA?

Most likely, this is the reason you are receiving a string ("ERR") instead of the data.

Please check the available SCPI commands and acquisition examples on this link:
https://redpitaya.readthedocs.io/en/lat ... -or-python

The examples will help you with the correct acquisition command sequence.

[shiraznantogma]

Thank you very much

[shiraznantogma]

Hello shiraznantogma,

Thank you for writing to us.

A couple of commands on the acquisition side are missing in your code which start the acquisition and define the trigger type. Also, the command for acquiring data from the Red Pitaya should be:

ACQ:SOUR1:DATA?

Most likely, this is the reason you are receiving a string ("ERR") instead of the data.

Please check the available SCPI commands and acquisition examples on this link:
https://redpitaya.readthedocs.io/en/lat ... -or-python

The examples will help you with the correct acquisition command sequence.

Thank you very much