"AEM FREE Board 28V Sum" (APP/LHK)

View Options: (help)

Focus:	Maintenance / Operation
Structures:	Abstract / Concrete

Ancestry:

0x000	pkt	DiagPduEnv0
0x066	str	AEMDAQENV dab
0x06A	bf	AEMFR28ISUM sumv

Definition:

Alignment:	2-byte boundary
APID:	638/0x27E
Attribute(s):
C type:	unsigned short
Length:	16 bits (2 bytes)
Offset:	0x06A

Description:

The sum of the high voltage (28V) currents measured over all FREE boards.

Layout: (hide detail; help)

Start	Stop	Size		Item Type and Name
0	11	12		ADCV val
12	15	4		ADCS stat

AEMFR28ISUM (bf)
|  ADCV val (0-11)
|  ADCS stat (12-15)

typedef struct _LHK_AEMFR28ISUM_Bfl {

    #if ENDIANNESS_IS_BIG

    /* ADC raw value */
    unsigned short       val:12;

    /* ADC status bits */
    unsigned short       stat:4;

    #elif ENDIANNESS_IS_LITTLE

    /* ADC status bits */
    unsigned short       stat:4;

    /* ADC raw value */
    unsigned short       val:12;

    #else

    #error _FILE_ ENDIANNESS NOT DEFINED

    #endif

} __attribute__((packed)) LHK_AEMFR28ISUM_Bfl;

typedef union _LHK_AEMFR28ISUM {

    /* underlying unsigned short */
    unsigned short                  us;

    /* struct mapped bitfield */
    struct _LHK_AEMFR28ISUM_Bfl     bf;

} LHK_AEMFR28ISUM;

Fields:

ADCS (index)

Attribute(s):  

Brief:  "ADC status bits"

Instance(s):  stat

A 4 bit value representing an ADC read/evaluation status.

ADCV (index)

Attribute(s):  

Brief:  "ADC raw value"

Instance(s):  val

A 12 bit raw ADC value.