MATLAB SIMULINK FIXED POINT 6 Manuale Utente Scaricare il pdf (Pagina 10)

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TargetLink Data Types Application Note September 2004

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Simulink TargetLink Results

Saved Simulink data

type was

int8

int16

int32

uint8

uint16

uint32

single

double

, or

boolean

TargetLink data type is

Int8, Int16,

Int32, UInt8, UInt16,

UInt32,.Float32, Float64, Boolean

or a user-defined type whose base

type is one of these types.

The Simulink data type is

written to the block. The

TargetLink LSB and offset are

not used.

Saved Simulink data

type was specified with

sfix

function call, or

uint

sint

ufrac

sfrac

function call and

[LSB offset] is not [2

or [2

-wordwidth

0],

respectively.

TargetLink data type is

Int8, Int16,

Int32, UInt8, UInt16,

UInt32,.Float32, Float64, Boolean

or a user-defined type.

Int8 -> sfix(8)

Int16 -> sfix(16)

Int32 -> sfix(32)

UInt8 -> ufix(8)

UInt16 -> ufix(16)

UInt32 -> ufix(32)

Float32 -> float(‘single’)

Float64 -> float(‘double’)

[LSB offset] -> [Slope Bias]

If the LSB or offset is different

across vector, the first values are

written and a warning is issued.

Saved Simulink data

type was specified with

uint

sint

function call, and [LSB

offset] is [2

0].

TargetLink data type is

Int8, Int16,

Int32, UInt8, UInt16, UInt32

or a

user-defined type with integer base

type.

Int8 -> sint(8)

Int16 -> sint(16)

Int32 -> sint(32)

UInt8 -> uint(8)

UInt16 -> uint(16)

UInt32 -> uint(32)

Saved Simulink data

type was specified with

ufrac

sfrac

function call, and [LSB

offset] is [2

-wordwidth

0].

TargetLink data type is

Int8, Int16,

Int32, UInt8, UInt16, UInt32

or a

user-defined type with integer base

type.

Int8 -> sfrac(8)

Int16 -> sfrac(16)

Int32 -> sfrac(32)

UInt8 -> ufrac(8)

UInt16 -> ufrac(16)

UInt32 -> ufrac(32)

SaturateOnIntegerOver

flow

output.checkmin

and

output.cheeckmax

If Simulink type is integer:

SaturateOnIntegerOverflow

set to the value of

output.checkmin

output.checkmin ==

output.checkmax

. Otherwise, a

warning is issued.

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MATLAB SIMULINK FIXED POINT 6 Manuale Utente Pagina 10

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