"Symbol Value Dump" (SVC/MEM)

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Focus:	Maintenance / Operation
Structures:	Abstract / Concrete

Context:

Description:

Dump of a symbol's 32-bit value.

Layout:  (hide detail; help)

Symbol Value Dump (LMEMSYMVAL) Telemetry Packet Format
0x	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
000	Version=0			T=0	SH	APID=0x312
002	SF		Sequence Count
004	Packet Length=65
006	Timestamp
00E	TIDBF idents
010	TSYMVAL symValue
014	TSYMNAMESIZE nameSize								TPAD8 pad8
016	TPAD16 pad16
018	TSYMNAMECHAR name[0-47]

LMEMSYMVAL (pkt)
|  TIDBF idents (bf)
|  |  TLATUNIT latUnit (0-3)
|  |  TTRANID tranID (4-15)
|  TSYMVAL symValue (fld)
|  TSYMNAMESIZE nameSize (fld)
|  TPAD8 pad8 (fld)
|  TPAD16 pad16 (fld)
|  TSYMNAMECHAR name[0-47] (fld)

typedef struct _MEM_LMEMSYMVAL_Tlm {

    /* Telemetry header */
    char                 hdr[14];

    /* LAT Unit and Transaction ID Bitfield */
    MEM_TIDBF            idents;

    /* Symbol Value */
    unsigned int         symValue;

    /* Symbol Name Length */
    unsigned char        nameSize;

    /* 8-Bit Padding */
    unsigned char        pad8;

    /* 16-Bit Padding */
    unsigned short       pad16;

    /* Symbol Name Character */
    unsigned char        name[48];

} MEM_LMEMSYMVAL_Tlm;

Fields:

TIDBF (index)

Attribute(s):  

Brief:  "LAT Unit and Transaction ID Bitfield"

Instance(s):  idents

Bitfield containing the ID of the LAT unit that sent the telemetry and the transaction identifier of the telecommand that requested the telemetry.

TPAD16 (index)

Attribute(s):  

Brief:  "16-Bit Padding"

Instance(s):  pad16

Explicit padding of 16 bits.

TPAD8 (index)

Attribute(s):  

Brief:  "8-Bit Padding"

Instance(s):  pad8

Explicit padding of 8 bits.

TSYMNAMECHAR (index)

Attribute(s):  

Brief:  "Symbol Name Character"

Instance(s):  name

Character within a symbol name.

TSYMNAMESIZE (index)

Attribute(s):  

Brief:  "Symbol Name Length"

Instance(s):  nameSize

Length of symbol name, in bytes.

TSYMVAL (index)

Attribute(s):  

Brief:  "Symbol Value"

Instance(s):  symValue

Value of symbol.