ok-dmr/ok-dmrlib

DMR PDUs, elements, FEC and CRC library, including proprietary DMR protocols of Hytera and Motorola

ok-dmrlib's Issues

Make Test Commands Gives an Error

I am getting the below error :-

'PYTHONPATH' is not recognized as an internal or external command,
operable program or batch file.
make: *** [Makefile:4: test] Error 1

Can you please GUIDE

add odd parity option to VBTC3211 as in B.2.2.2 Reverse Channel Single Burst BPTC

@kantooon fyi

Forked from #8 as a feature request

Usage Info

@smarek OK as per your suggestion on my previous issue within this repo. I am able to build the code.

Can you help me to understand how this source code can be used to implement DMR?

It contains all the protocols required in DMR [Tier 1, 2 and 3]

How to generate data transmission

Hi, I want to do generic data transmission over tier 2 with mmdvm for RF.
But sadly I have no idea how to start because of missing documentation. If I would know, at which files to look, for connecting to mmdvm, to transmit/receive generic data, I probably could figure it out by myself, but I don't know where to look.
More documentation or even better some simple examples, for example just sending hello world and receiving it, would be much appreciated.
Thx

Help with embedded outbound Reverse Channel information

Hi, I'm trying to implement in MMDVMHost the DMR tier III reverse channel commands for MS de-key and MS power control.
I use ok-dmrlib to generate the 32 bit PDUs, but the radios do not respond to the commands so there seems to be some issue with my code.
I figured out by myself that in VBPTC3211 I have to invert the parity bits row to odd in the set_parity() method and changed it accordingly. I'm not so sure about CRC7 configuration.
I wonder if you could help me troubleshoot my ok-dmrlib code below. Otherwise, the EMB fields are set with LCSS 0, PI 1 and correct colour code. The PDU is only transmitted in voice burst F so that seems fine as well.

 ba = bitarray('0100')
 CRC7_conf = BitCrcConfiguration(
        width_bits=7,
        polynomial=0x27,
        init_value=0x00,
        final_xor_value=0x7A,
        reverse_input_bytes=False,
        reverse_output_bytes=False,
    )
    crc7_calc = BitCrcCalculator(CRC7_conf, True)
    crc7_nm = crc7_calc.calculate_checksum(ba)
    print(crc7_nm)
    ba = ba + crc7_nm
    out = VBPTC3211.encode(ba)
    print(out)
    pad = bitarray('0000')
    padl = bitarray('0000')
    pad.extend(out)
    pad.extend(padl)
    all_bytes = bits_to_bytes(pad)
    readable = all_bytes.hex(',').split(',')
    x = str()
    for i in readable:
        x += "0x" + i + ', '
    print(x)

Help with installation needed

Hello,

I am not a tech guy that much so I need some help with installing it. Could you please leave your email address or another contactable form so I can contact you?

Thank you