From 6f770d1d69dba0dda9af436af5badbdce8f54c77 Mon Sep 17 00:00:00 2001 From: DJ2LS <75909252+DJ2LS@users.noreply.github.com> Date: Fri, 5 Feb 2021 14:40:32 +0100 Subject: [PATCH] improved data frame processing --- arq.py | 223 +++++++++++++++++++++++++++++------------------------- modem.py | 41 +++++++--- static.py | 13 +++- 3 files changed, 165 insertions(+), 112 deletions(-) diff --git a/arq.py b/arq.py index b5b0023c..62e54fc7 100644 --- a/arq.py +++ b/arq.py @@ -14,6 +14,7 @@ from random import randrange import static import modem import helpers +import main modem = modem.RF() @@ -25,132 +26,168 @@ def arq_ack_timeout(): def data_received(data_in): + + +# arqframe = frame_type + \ # 1 [:1] # frame type and current number of arq frame of (current) burst +# bytes([static.ARQ_TX_N_FRAMES_PER_BURST]) + \ # 1 [1:2] # total number of arq frames per (current) burst +# static.ARQ_N_CURRENT_ARQ_FRAME + \ # 2 [2:4] # current arq frame number +# static.ARQ_N_TOTAL_ARQ_FRAMES + \ # 2 [4:6] # total number arq frames +# static.ARQ_BURST_PAYLOAD_CRC + \ # 2 [6:8] # arq crc +# payload_data # N [8:N] # payload data + + + + + - static.ARQ_N_FRAME = int.from_bytes(bytes(data_in[:1]), "big") - 10 #get number of frame + static.ARQ_N_FRAME = int.from_bytes(bytes(data_in[:1]), "big") - 10 #get number of burst frame static.ARQ_N_RX_FRAMES_PER_BURSTS = int.from_bytes(bytes(data_in[1:2]), "big") #get number of bursts from received frame - - # get total number of arq frames from data frame header - if data_in[8:10] == static.FRAME_BOF: - static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME = int.from_bytes(bytes(data_in[4:6]), "big") - print("----------------------------------------------------------------") - logging.info("ARQ | RX | INCOMMING DATA FRAME ----- ARQ FRAMES: " + str(static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME)) + static.ARQ_RX_N_CURRENT_ARQ_FRAME = int.from_bytes(bytes(data_in[2:4]), "big") #get current number of total frames + static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME = int.from_bytes(bytes(data_in[4:6]), "big") # get get total number of frames + static.ARQ_BURST_PAYLOAD_CRC = data_in[6:8] + + + print("----------------------------------------------------------------") + logging.info("ARQ_N_FRAME: " + str(static.ARQ_N_FRAME)) + logging.info("ARQ_N_RX_FRAMES_PER_BURSTS: " + str(static.ARQ_N_RX_FRAMES_PER_BURSTS)) + logging.info("ARQ_RX_N_CURRENT_ARQ_FRAME: " + str(static.ARQ_RX_N_CURRENT_ARQ_FRAME)) + logging.info("ARQ_N_ARQ_FRAMES_PER_DATA_FRAME: " + str(static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME)) + logging.info("static.ARQ_BURST_PAYLOAD_CRC: " + str(static.ARQ_BURST_PAYLOAD_CRC)) + print("----------------------------------------------------------------") + arq_percent_burst = int((static.ARQ_N_FRAME / static.ARQ_N_RX_FRAMES_PER_BURSTS)*100) - arq_percent_frame = int(((static.ARQ_N_RX_ARQ_FRAMES + static.ARQ_N_FRAME)/static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME)*100) - logging.info("ARQ | RX | ARQ FRAME [" + str(static.ARQ_N_FRAME) + "/" + str(static.ARQ_N_RX_FRAMES_PER_BURSTS) + "] [" + str(arq_percent_burst).zfill(3) + "%] --- TOTAL [" + str(static.ARQ_N_RX_ARQ_FRAMES + static.ARQ_N_FRAME) + "/" + str(static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME) + "] [" + str(arq_percent_frame).zfill(3) + "%]" ) - - + arq_percent_frame = int(((static.ARQ_RX_N_CURRENT_ARQ_FRAME)/static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME)*100) + + logging.info("ARQ | RX | ARQ FRAME [" + str(static.ARQ_N_FRAME) + "/" + str(static.ARQ_N_RX_FRAMES_PER_BURSTS) + "] [" + str(arq_percent_burst).zfill(3) + "%] --- TOTAL [" + str(static.ARQ_RX_N_CURRENT_ARQ_FRAME) + "/" + str(static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME) + "] [" + str(arq_percent_frame).zfill(3) + "%]" ) + #allocate ARQ_RX_FRAME_BUFFER as a list with "None" if not already done. This should be done only once per burst! + # here we will save the N frame of a data frame to N list position so we can explicit search for it + if static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME != len(static.ARQ_RX_FRAME_BUFFER) and static.ARQ_RX_N_CURRENT_ARQ_FRAME == 1: + for i in range(0,static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME+1): + static.ARQ_RX_FRAME_BUFFER.insert(i,None) + + #allocate ARQ_RX_BURST_BUFFER as a list with "None" if not already done. This should be done only once per burst! # here we will save the N frame of a burst to N list position so we can explicit search for it if static.ARQ_N_RX_FRAMES_PER_BURSTS != len(static.ARQ_RX_BURST_BUFFER) and static.ARQ_N_FRAME == 1: for i in range(0,static.ARQ_N_RX_FRAMES_PER_BURSTS+1): static.ARQ_RX_BURST_BUFFER.insert(i,None) - #print(len(static.ARQ_RX_BURST_BUFFER)) - - # now we add the incoming data to the specified position in our list - static.ARQ_RX_BURST_BUFFER[static.ARQ_N_FRAME] = bytes(data_in) + + + + # now we add the incoming data to the specified position in our lists + static.ARQ_RX_BURST_BUFFER[static.ARQ_N_FRAME] = bytes(data_in) + static.ARQ_RX_FRAME_BUFFER[static.ARQ_RX_N_CURRENT_ARQ_FRAME] = bytes(data_in) + + +# -------------------------- ARQ BURST CHECKER + # run only if we recieved all ARQ FRAMES per ARQ BURST burst_total_payload = bytearray() if static.ARQ_N_FRAME == static.ARQ_N_RX_FRAMES_PER_BURSTS: #if received bursts are equal to burst number in frame - #print("len ARQ_RX_BURST_BUFFER: " + str(len(static.ARQ_RX_BURST_BUFFER)-1)) - #print("static.ARQ_N_FRAME: " + str(static.ARQ_N_FRAME)) - #print("static.ARQ_N_RX_FRAMES_PER_BURSTS: " + str(static.ARQ_N_RX_FRAMES_PER_BURSTS)) - - - #for l in range(0,len(static.ARQ_RX_BURST_BUFFER)): - # print(static.ARQ_RX_BURST_BUFFER[l]) - - - #here we get the total payload for the frame + #here we get the total payload for the frame to calculate the crc for n_raw_frame in range(1,len(static.ARQ_RX_BURST_BUFFER)): # we need to check if we have a None or received data in list if static.ARQ_RX_BURST_BUFFER[n_raw_frame] != None: burst_frame = static.ARQ_RX_BURST_BUFFER[n_raw_frame] #get burst frame - burst_payload = burst_frame[4:] #remove frame type and burst CRC + burst_payload = burst_frame[8:] #remove frame type and burst CRC #4 burst_total_payload = burst_total_payload + burst_payload #stick bursts together - + # ------------------ calculate CRC of BURST burst_payload_crc = helpers.get_crc_16(burst_total_payload) # IF BURST CRC IS CORRECT, APPEND BURST TO BUFFER AND SEND ACK FRAME - if burst_payload_crc == data_in[2:4]: - - #update received frames counter - static.ARQ_N_RX_ARQ_FRAMES = static.ARQ_N_RX_ARQ_FRAMES + static.ARQ_N_RX_FRAMES_PER_BURSTS - - #logging.info("ARQ BURST CRC ARE EQUAL!") - static.ARQ_RX_FRAME_BUFFER.append(burst_total_payload) # IF CRC TRUE APPEND burst_total_payload TO ARQ_RX_FRAME_BUFFER - - #BUILDING ACK FRAME ----------------------------------------------- + if burst_payload_crc == data_in[6:8]: + + #BUILDING ACK FRAME FOR BURST ----------------------------------------------- ack_payload = bytes(burst_payload_crc) ack_frame = b'<'+ bytes(burst_payload_crc) # < = 60 ack_buffer = bytearray(static.ARQ_ACK_PAYLOAD_PER_FRAME) ack_buffer[:len(ack_frame)] = ack_frame # set buffersize to length of data which will be send - #TRANSMIT ACK FRAME ----------------------------------------------- - logging.info("ARQ | TX | ARQ BURST ACK [" + str(data_in[1:3].hex()) +"]") + #TRANSMIT ACK FRAME FOR BURST----------------------------------------------- + logging.info("ARQ | TX | ARQ BURST ACK [" + str(data_in[6:8].hex()) +"]") #1:3 modem.transmit_arq_ack(ack_buffer) - # ---------------------------------------------------------------- - + # ---------------------------------------------------------------- static.ARQ_RX_BURST_BUFFER = [] # CLEAR RX BURST BUFFER AFTER SENDING DATA else: #IF burst payload crc and input crc are NOT equal - logging.info("ARQ BURST CRC NOT EQUAL! [" + str(data_in[2:4]) + "]") + logging.info("ARQ BURST CRC NOT EQUAL! [" + str(data_in[6:8]) + "]") static.ARQ_RX_BURST_BUFFER = [] #erase ARQ RX Burst buffer - - # LOOP THOUGH FRAME BUFFER AND STICK EVERYTHING TOGETHER - # WE ALSO CHECK FOR FRAME HEADER AND LAST FRAME - complete_frame = bytearray() - #print(static.ARQ_RX_FRAME_BUFFER) - for frame in range(len(static.ARQ_RX_FRAME_BUFFER)): - complete_frame = complete_frame + static.ARQ_RX_FRAME_BUFFER[frame] - - # -------- DETECT IF WE ALREADY RECEIVED A FRAME HEADER THEN SAVE DATA TO GLOBALS - if complete_frame[4:6].startswith(static.FRAME_BOF) or burst_total_payload[4:6].startswith(static.FRAME_BOF): #5:7 - static.FRAME_CRC = complete_frame[2:4] - static.ARQ_FRAME_BOF_RECEIVED = True - - # -------- DETECT IF WE HAVE ALREADY RECEIVED THE LAST FRAME - if burst_total_payload.rstrip(b'\x00').endswith(static.FRAME_EOF): - static.ARQ_FRAME_EOF_RECEIVED = True - + #if nframes are unequal to expected frames per burst + else: + print("unequal") + pass + +# ---------------------------- FRAME MACHINE + + # --------------- CHECK IF WE ARE MISSING FRAMES ------------------------------------------- + for frame in range(1,len(static.ARQ_RX_FRAME_BUFFER)): + if static.ARQ_RX_FRAME_BUFFER[frame] == None: + print("Missing frames:" + str(frame)) + + # --------------- IF LIST NOT CONTAINS "None" stick everything together + complete_data_frame = bytearray() + if static.ARQ_RX_FRAME_BUFFER.count(None) == 1: ## 1 because position 0 of list will alaways be None in our case + print("ALL DATA RECEIVED!") + + for frame in range(1,len(static.ARQ_RX_FRAME_BUFFER)): + raw_arq_frame = static.ARQ_RX_FRAME_BUFFER[frame] + arq_frame_payload = raw_arq_frame[8:] + + # -------- DETECT IF WE RECEIVED A FRAME HEADER THEN SAVE DATA TO GLOBALS + if arq_frame_payload[2:4].startswith(static.FRAME_BOF): + static.FRAME_CRC = arq_frame_payload[:2] + static.ARQ_FRAME_BOF_RECEIVED = True + + arq_frame_payload = arq_frame_payload.split(static.FRAME_BOF) + arq_frame_payload = arq_frame_payload[1] + + # -------- DETECT IF WE RECEIVED A FRAME FOOTER THEN SAVE DATA TO GLOBALS + if arq_frame_payload.rstrip(b'\x00').endswith(static.FRAME_EOF): + static.ARQ_FRAME_EOF_RECEIVED = True + + arq_frame_payload = arq_frame_payload.split(static.FRAME_EOF) + arq_frame_payload = arq_frame_payload[0] + + # --------- AFTER WE SEPARATED BOF AND EOF, STICK EVERYTHING TOGETHER + + complete_data_frame = complete_data_frame + arq_frame_payload + + #check if Begin of Frame BOF and End of Frame EOF are received, then start calculating CRC and sticking everything together if static.ARQ_FRAME_BOF_RECEIVED == True and static.ARQ_FRAME_EOF_RECEIVED == True: - - # NOW WE TRY TO SEPARATE THE FRAME CRC FOR A CRC CALCULATION - frame_payload = complete_frame.rstrip(b'\x00') #REMOVE x00 - frame_payload = frame_payload[6:-2] #THIS IS THE FRAME PAYLOAD - frame_payload_crc = helpers.get_crc_16(frame_payload) - + + frame_payload_crc = helpers.get_crc_16(complete_data_frame) + #IF THE FRAME PAYLOAD CRC IS EQUAL TO THE FRAME CRC WHICH IS KNOWN FROM THE HEADER --> SUCCESS if frame_payload_crc == static.FRAME_CRC: logging.info("ARQ | RX | DATA FRAME SUCESSFULLY RECEIVED! - TIME TO PARTY") - static.RX_BUFFER.append(frame_payload) + static.RX_BUFFER.append(complete_data_frame) # clearing buffers and resetting counters + static.ARQ_RX_BURST_BUFFER = [] static.ARQ_RX_FRAME_BUFFER = [] static.ARQ_FRAME_BOF_RECEIVED = False static.ARQ_FRAME_EOF_RECEIVED = False - static.ARQ_N_RX_ARQ_FRAMES = 0 + #static.ARQ_N_RX_ARQ_FRAMES = 0 static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME = 0 print("----------------------------------------------------------------") print(static.RX_BUFFER[-1]) + print("----------------------------------------------------------------") # HERE: WE COULD SEND ACK FOR TOTAL FRAME else: logging.info("ARQ | RX | DATA FRAME NOT SUCESSFULLY RECEIVED!") - #print("ARQ FRAME PAYLOAD CRC: " + str(frame_payload_crc)) - #print("ARQ FRAME PAYLOAD: " + str(frame_payload)) - #print("DATA FRAME: " + str(complete_frame)) - #static.ARQ_RX_FRAME_BUFFER = [] # ---> BUFFER ERST LÖSCHEN WENN MINDESTANZAHL AN BURSTS ERHALTEN WORDEN SIND + def ack_received(): @@ -161,30 +198,24 @@ def ack_received(): def transmit(data_out): - static.ARQ_PAYLOAD_PER_FRAME = static.FREEDV_DATA_PAYLOAD_PER_FRAME - 4 #3 ohne ARQ_TX_N_FRAMES_PER_BURST - frame_header_length = 8 + static.ARQ_PAYLOAD_PER_FRAME = static.FREEDV_DATA_PAYLOAD_PER_FRAME - 8 #3 ohne ARQ_TX_N_FRAMES_PER_BURST + frame_header_length = 4 + n_arq_frames_per_data_frame = (len(data_out)+frame_header_length) // static.ARQ_PAYLOAD_PER_FRAME + ((len(data_out)+frame_header_length) % static.ARQ_PAYLOAD_PER_FRAME > 0) # aufrunden 3.2 = 4 #print(static.FREEDV_DATA_PAYLOAD_PER_FRAME) #print(static.ARQ_PAYLOAD_PER_FRAME) #print(n_bursts_prediction) - static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME = n_arq_frames_per_data_frame.to_bytes(2, byteorder='big') #65535 - + ####static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME = n_arq_frames_per_data_frame.to_bytes(2, byteorder='big') #65535 + frame_payload_crc = helpers.get_crc_16(data_out) + #print(frame_payload_crc) # This is the total frame with frame header, which will be send - data_out = static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME + frame_payload_crc + static.FRAME_BOF + data_out + static.FRAME_EOF - # 2 2 2 N 2 - #print("ARQ_N_ARQ_FRAMES_PER_DATA_FRAME" + str(static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME)) + data_out = frame_payload_crc + static.FRAME_BOF + data_out + static.FRAME_EOF + # 2 2 N 2 - - - - #print(data_out) - #print(len(data_out)) - #print(static.ARQ_PAYLOAD_PER_FRAME) - # --------------------------------------------- LETS CREATE A BUFFER BY SPLITTING THE FILES INTO PEACES static.TX_BUFFER = [data_out[i:i+static.ARQ_PAYLOAD_PER_FRAME] for i in range(0, len(data_out), static.ARQ_PAYLOAD_PER_FRAME)] static.TX_BUFFER_SIZE = len(static.TX_BUFFER) @@ -230,10 +261,10 @@ def transmit(data_out): burst_payload = bytearray(static.ARQ_PAYLOAD_PER_FRAME) burst_payload[:len(burst_raw_payload)] = burst_raw_payload # get frame from TX_BUFFER burst_total_payload = burst_total_payload + burst_payload # append single frame to total payload buffer - #print(burst_total_payload) + # ----------- GENERATE PAYLOAD CRC FOR ARQ_TX_N_FRAMES_PER_BURST static.ARQ_BURST_PAYLOAD_CRC = helpers.get_crc_16(burst_total_payload) - + #--------------------------------------------- N ATTEMPTS TO SEND BURSTS IF ACK RECEPTION FAILS for static.TX_N_RETRIES in range(static.TX_N_MAX_RETRIES): logging.info("ARQ | TX | ARQ FRAME --- ATTEMPT [" + str(static.TX_N_RETRIES+1) + "/" + str(static.TX_N_MAX_RETRIES) + "]") @@ -253,28 +284,16 @@ def transmit(data_out): logging.info("ARQ | RX | WAITING FOR ACK") static.ARQ_STATE = 'RECEIVING_ACK' - - - + timer = threading.Timer(static.ARQ_ACK_TIMEOUT_SECONDS, arq_ack_timeout) timer.start() - - # waiting the other way... - #starttimer = time.time() + static.ARQ_ACK_TIMEOUT_SECONDS - #while starttimer > time.time() and static.ARQ_ACK_RECEIVED == 0: - # #print(str(starttimer - time.time())) - # pass - #else: - # static.ARQ_ACK_TIMEOUT = 1 - #static.MODEM_RECEIVE = False # --------------------------- WHILE TIMEOUT NOT REACHED AND NO ACK RECEIVED --> LISTEN while static.ARQ_ACK_TIMEOUT == 0 and static.ARQ_ACK_RECEIVED == 0: time.sleep(0.01) # lets reduce CPU load a little bit #print(static.ARQ_STATE) - - + #--------------- BREAK LOOP IF ACK HAS BEEN RECEIVED if static.ARQ_ACK_RECEIVED == 1: #-----------IF ACK RECEIVED, INCREMENT ITERATOR FOR MAIN LOOP TO PROCEED WITH NEXT FRAMES/BURST @@ -315,6 +334,6 @@ def transmit(data_out): # BURST MACHINE TO DEFINE N BURSTS PER FRAME ---> LATER WE CAN USE CHANNEL MESSUREMENT TO SET FRAMES PER BURST def get_n_frames_per_burst(): - n_frames_per_burst = randrange(1,5) - #n_frames_per_burst = 3 + n_frames_per_burst = randrange(1,15) + #n_frames_per_burst = 1 return n_frames_per_burst diff --git a/modem.py b/modem.py index b72063a4..9b7f1898 100644 --- a/modem.py +++ b/modem.py @@ -90,10 +90,11 @@ class RF(): txbuffer += bytes(mod_out_preamble) txbuffer += bytes(mod_out) txbuffer = txbuffer.rstrip(b'\x00') - + + # -------------- transmit audio self.stream_tx.write(bytes(txbuffer)) - + #-------------------------------------------------------------------------------------------------------- def transmit_arq_ack(self,ack_buffer): @@ -127,10 +128,10 @@ class RF(): txbuffer = txbuffer.rstrip(b'\x00') #lets remove unallocated memory because of wrong buffer :-/ txbuffer += bytes(mod_out) txbuffer = txbuffer.rstrip(b'\x00') #lets remove unallocated memory because of wrong buffer :-/ - # -------------- transmit audio self.stream_tx.write(bytes(txbuffer)) - + self.stream_tx.write(bytes(txbuffer)) + static.ARQ_STATE = 'RECEIVING_DATA' #-------------------------------------------------------------------------------------------------------- # GET ARQ BURST FRAME VOM BUFFER AND MODULATE IT @@ -162,8 +163,30 @@ class RF(): frame_type = bytes([frame_type]) payload_data = bytes(static.TX_BUFFER[static.ARQ_N_SENT_FRAMES + n]) + + n_current_arq_frame = static.ARQ_N_SENT_FRAMES + n + 1 + static.ARQ_TX_N_CURRENT_ARQ_FRAME = n_current_arq_frame.to_bytes(2, byteorder='big') + + n_total_arq_frame = len(static.TX_BUFFER) + static.ARQ_TX_N_TOTAL_ARQ_FRAMES = n_total_arq_frame.to_bytes(2, byteorder='big') + + + + # 1 # frame type and current number of arq frame of burst + # 1 # total number of arq frames per (current) burst + # 2 # current arq frame number + # 2 # total number arq frames + # 2 # arq crc + # N # payload data + + arqframe = frame_type + \ + bytes([static.ARQ_TX_N_FRAMES_PER_BURST]) + \ + static.ARQ_TX_N_CURRENT_ARQ_FRAME + \ + static.ARQ_TX_N_TOTAL_ARQ_FRAMES + \ + static.ARQ_BURST_PAYLOAD_CRC + \ + payload_data - arqframe = frame_type + bytes([static.ARQ_TX_N_FRAMES_PER_BURST]) + static.ARQ_BURST_PAYLOAD_CRC + payload_data + print(arqframe) buffer = bytearray(static.FREEDV_DATA_PAYLOAD_PER_FRAME) # create TX buffer buffer[:len(arqframe)] = arqframe # set buffersize to length of data which will be send @@ -201,8 +224,8 @@ class RF(): signalling_bytes_out = (ctypes.c_ubyte * static.FREEDV_SIGNALLING_BYTES_PER_FRAME) signalling_bytes_out = signalling_bytes_out() #get pointer from bytes_out - - while 1: + # with this we can interrupt receiving + while static.FREEDV_RECEIVE == True: time.sleep(0.01) while static.ARQ_STATE == 'RECEIVING_DATA': @@ -228,7 +251,7 @@ class RF(): #print(modem_stats_snr) if nbytes == static.FREEDV_DATA_BYTES_PER_FRAME: - + # CHECK IF FRAMETYPE IS BETWEEN 10 and 50 ------------------------ frametype = int.from_bytes(bytes(data_bytes_out[:1]), "big") frame = frametype - 10 @@ -265,7 +288,7 @@ class RF(): arq.ack_received() rxstatus = self.c_lib.freedv_get_rx_status(freedv_signalling) - #print(rxstatus) + print(rxstatus) if nbytes == static.FREEDV_SIGNALLING_BYTES_PER_FRAME or rxstatus == 10: self.c_lib.freedv_set_sync(freedv_signalling, 0) #FORCE UNSYNC diff --git a/static.py b/static.py index 48b879d5..8e95db0c 100644 --- a/static.py +++ b/static.py @@ -13,6 +13,7 @@ Created on Wed Dec 23 11:13:57 2020 #AUDIO TIME: 14.750595331192017 #12 # 2 FRAME + PREAMBLE # FreeDV Defaults +FREEDV_RECEIVE = True FREEDV_DATA_MODE = 12 FREEDV_SIGNALLING_MODE = 14 @@ -56,8 +57,18 @@ ARQ_RX_BURST_BUFFER = [] ARQ_RX_FRAME_BUFFER = [] ARQ_RX_FRAME_N_BURSTS = 0 -ARQ_N_RX_ARQ_FRAMES = 0 # total number of received frames +## TX +ARQ_TX_N_CURRENT_ARQ_FRAME = 0 +ARQ_TX_N_TOTAL_ARQ_FRAMES = 0 +## + +## RX ARQ_N_ARQ_FRAMES_PER_DATA_FRAME = 0 #total number of arq frames per data frame +ARQ_RX_N_CURRENT_ARQ_FRAME = 0 +## + +ARQ_N_RX_ARQ_FRAMES = 0 # total number of received frames + ARQ_N_RX_FRAMES_PER_BURSTS = 0 # NUMBER OF FRAMES WE ARE WAITING FOR --> GOT DATA FROM RECEIVED FRAME ARQ_ACK_PAYLOAD_PER_FRAME = 0 # PAYLOAD per ACK frame ARQ_ACK_RECEIVED = 0 # set to 1 if ACK received