"Structure to capture rad750 input PID states" (APP/LHK)

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Focus:	Maintenance / Operation
Structures:	Abstract / Concrete

Definition:

Alignment:	1-byte boundary
APID:	554/0x22A
Attribute(s):
C type:	unsigned char
Length:	8 bits (1 byte)

Description:

Structure to capture rad750 input PID states

Layout: (hide detail; help)

Start	Stop	Size		Item Type and Name
0	4	5		Paduc5 rsv
5	5	1		PID pid2
6	6	1		PID pid1
7	7	1		PID pid0

ConfigPID (bf)
|  Paduc5 rsv (0-4)
|  PID pid2 (5) ... pid0 (7)

typedef struct _LHK_ConfigPID_Bfl {

    #if ENDIANNESS_IS_BIG

    /* Explicit 5 bit pad in unsigned char */
    unsigned char        rsv:5;

    /* PID status */
    unsigned char        pid2:1;

    /* PID status */
    unsigned char        pid1:1;

    /* PID status */
    unsigned char        pid0:1;

    #elif ENDIANNESS_IS_LITTLE

    /* PID status */
    unsigned char        pid0:1;

    /* PID status */
    unsigned char        pid1:1;

    /* PID status */
    unsigned char        pid2:1;

    /* Explicit 5 bit pad in unsigned char */
    unsigned char        rsv:5;

    #else

    #error _FILE_ ENDIANNESS NOT DEFINED

    #endif

} __attribute__((packed)) LHK_ConfigPID_Bfl;

typedef union _LHK_ConfigPID {

    /* underlying unsigned char */
    unsigned char                   uc;

    /* struct mapped bitfield */
    struct _LHK_ConfigPID_Bfl       bf;

} LHK_ConfigPID;

Fields:

Paduc5 (index)

Attribute(s):  

Brief:  "Explicit 5 bit pad in unsigned char"

Instance(s):  rsv

Explicit 5 bit pad in unsigned char

PID (index)

Attribute(s):  

Brief:  "PID status"

Instance(s):  pid0, pid1, pid2

Contains the status of a RAD750 programmable input discrete

Used by:

SiuStats