bursts dat files

Sebastien Lorquet sebastien at lorquet.fr
Mon Dec 10 15:11:27 UTC 2012


it means that no padding is used to align struct field on word boundaries.
This is a normal way to do things when a struct is to be written in a file or
any other data stream.

Regards
Sebastien

Le 10/12/2012 14:46, g.roelant at telenet.be a écrit :
>
> Is this the structure of the dat files?
>
>  
>
> struct l1ctl_burst_ind {
> uint32_t frame_nr;
> uint16_t band_arfcn;    /* ARFCN + band + ul indicator               */
> uint8_t chan_nr;        /* GSM 08.58 channel number (9.3.1)          */
> uint8_t flags;          /* BI_FLG_xxx + burst_id = 2LSBs             */
> uint8_t rx_level;       /* 0 .. 63 in typical GSM notation (dBm+110) */
> uint8_t snr;            /* Reported SNR >> 8 (0-255)                 */
> uint8_t bits[15];       /* 114 bits + 2 steal bits. Filled MSB first */
> } __attribute__((packed));
>
> what does packed mean?
>
> --------------------------------------------------------------------------------
> *Van: *"g roelant" <g.roelant at telenet.be>
> *Aan: *"osmocomBB" <baseband-devel at lists.osmocom.org>
> *Verzonden: *Maandag 10 december 2012 12:36:49
> *Onderwerp: *bursts dat files
>
>
> Hi,
>
>  
>
> I'm using the sylvain/burst_ind branch and ccch_scan.
>
> this produces bursts files.
>
>  
>
> with which application can i view them? what is the format of these dat files?
>
>  
>
> i cannot open them with wireshark...
>
>  
>
> any hints?
>
>  
>
> kind regards
>
>  
>
>

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