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added preamble transmission

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DJ2LS 2021-01-16 14:29:49 +01:00 committed by GitHub
parent a316126725
commit fa49e90c9b
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1 changed files with 0 additions and 11 deletions
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modem.py
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@ -80,10 +80,6 @@ class RF():
FREEDV_DATAC3_THREAD = threading.Thread(target=self.receive, args=[12], name="DATAC3 Decoder")
FREEDV_DATAC3_THREAD.start()
#time.sleep(2)
#self.transmit(7,b'000000000000')
#self.transmit(7,b'ABCDEFGHIJKL')
#--------------------------------------------------------------------------------------------------------
@ -112,17 +108,10 @@ class RF():
payload_per_frame = bytes_per_frame -2
n_nom_modem_samples = self.c_lib.freedv_get_n_nom_modem_samples(freedv)
n_tx_modem_samples = self.c_lib.freedv_get_n_tx_modem_samples(freedv)*2 #get n_tx_modem_samples which defines the size of the modulation object
mod_out = ctypes.c_short * n_tx_modem_samples
mod_out = mod_out()
if mode < 10:
##preamble = bytes(payload_per_frame)
preamble = b'111111111111'
data_out = preamble + data_out
#data_out += data_out
data_list = [data_out[i:i+payload_per_frame] for i in range(0, len(data_out), payload_per_frame)] # split incomming bytes to size of 30bytes, create a list and loop through it
data_list_length = len(data_list)
for i in range(data_list_length): # LOOP THROUGH DATA LIST