py-hackrf-ctypes/README.md

pyhackrf-ctypes

pyhackrf-ctypes is a Python wrapper for libhackrf.
I create this project because i want a simple Python interface to my hackrf board. At First I use pyusb to directly get the data from HackRF, then I found pyusb can only move data at a rate of 5MiB/S, too slow for HackRF.
So finally i choose ctypes .

Dependencies

• libusb

• Python 2.7.x/3.3+

• libhackrf

• NumPy

  sudo apt-get install python-dev,libusb-1.0-0 libhackrf

Examples

import pylibhackrf ,ctypes

hackrf = pylibhackrf.HackRf()

if hackrf.is_open == False:
    hackrf.setup()
    hackrf.set_freq(hackrf_settings.centre_frequency)
    hackrf.set_sample_rate(hackrf_settings.sample_rate)
    hackrf.set_amp_enable(False)
    hackrf.set_lna_gain(hackrf_settings.if_gain)
    hackrf.set_vga_gain(hackrf_settings.bb_gain)    
    hackrf.set_baseband_filter_bandwidth(hackrf_settings.bb_bandwidth)  

def callback_fun(hackrf_transfer):
    array_type = (ctypes.c_ubyte*length)
    values = ctypes.cast(hackrf_transfer.contents.buffer, ctypes.POINTER(array_type)).contents
    #iq data here
    iq = hackrf.packed_bytes_to_iq(values)    
    return 0

hackrf.start_rx_mode(callback_fun)

Todo

There are a few remaining functions in libhackrf haven't been wrapped.

License

All of the code contained here is licensed by the GNU General Public License v3.