Hardware Implementation Pane

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Hardware Implementation Overview Device vendor Device type Number of bits: char Number of bits: short Number of bits: int Number of bits: long Number of bits: float Number of bits: double Number of bits: native Number of bits: pointer Largest atomic size: integer Largest atomic size: floating-point Byte ordering Signed integer division rounds to Shift right on a signed integer as arithmetic shift None Device vendor Device type Number of bits: char Number of bits: short Number of bits: int Number of bits: long Number of bits: float Number of bits: double Number of bits: native Number of bits: pointer Largest atomic size: integer Largest atomic size: floating-point Byte ordering Signed integer division rounds to Shift right on a signed integer as arithmetic shift

Hardware Implementation Overview

Describe the hardware characteristics for the modelled system, including how to set up embedded and emulation hardware settings for both simulation and code generation.

Note   Hardware Implementation pane options do not control hardware or compiler behavior: their purpose is to solely describe hardware and compiler properties to MATLAB software, which uses the information to generate code that is correct for the platform, runs as efficiently as possible, and gives bit-true agreement for the results of integer and fixed-point operations in simulation, production code, and test code.

Configuration

1. Choose the Device type in the Embedded hardware subpane.

2. Set the parameters displayed for the selected device type.

3. Apply the changes.

4. Repeat as needed for Emulation hardware.

Tips

• This pane applies to models of computer-based systems, such as embedded controllers.

• Specifying hardware characteristics enables simulation of the model to detect error conditions that could arise when executing code, such as hardware overflow.

See Also

• Configuring Hardware Properties

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

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Device vendor

Select the manufacturer of the hardware you will use to implement the production version of the system represented by this model.

Settings

Default: Generic

• AMD

• ARM Compatible

• ASIC/FPGA (Embedded hardware subpane only)

• Analog Devices

• Atmel

• Freescale

• Infineon

• Intel

• Microchip

• NEC

• Renesas

• SGI

• STMicroelectronics

• Texas Instruments

• Generic

Tips

• Select the device vendor before you specify the hardware device used to define your system's constraints.

• If your production hardware does not match any of the listed vendors, select Generic.

• The Device vendor and Device type fields both share the same command line parameter: ProdHWDeviceType. When specifying this parameter from the command line, separate the device vendor and device type values using the characters —>. For example: 'Intel->8051 Compatible'.

• To add Device vendor and Device type values to the default set that is displayed on the Hardware Implementation pane, see Register Additional Device Vendor and Device Type Values in the Simulink Coder documentation.

Dependencies

Selecting a value for this parameter allows you to view a list of supported devices from the selected vendor in the Device type drop-down menu.

Command-Line Information

Parameter: ProdHWDeviceType

Type: string

Value: any valid value (see tips)

Default: 'Generic->Unspecified (assume 32-bit Generic)'

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	No impact
Safety precaution	No impact

See Also

• Device type (production hardware)

• Device vendor (test hardware)

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Device type

Select the type of hardware you will use to implement the production version of the system represented by this model.

Settings

Default: Unspecified (assume 32–bit Generic)

Generic options:

• 16-bit Embedded Processor

• 32-bit Embedded Processor

• 32-bit Real-Time Simulator

• 32-bit x86 compatible

• 8-bit Embedded Processor

• Custom

• MATLAB Host Computer (available as an Emulation hardware device and, for MATLAB Coder configuration, as an Embedded hardware device)

• Unspecified (assume 32-bit Generic)

AMD^® options:

• K5/K6/Athlon

ARM^® Compatible options:

• ARM 10

• ARM 11

• ARM 7

• ARM 8

• ARM 9

• ARM Cortex

ASIC/FPGA options: (Embedded hardware subpane only)

• ASIC/FPGA

Analog Devices™ options:

• Blackfin

• SHARC

• TigerSHARC

Atmel^® options:

• AVR

Freescale™ options:

• 32-bit PowerPC

• 68332

• 68HC08

• 68HC11

• ColdFire

• DSP563xx (16-bit mode)

• HC(S)12

• MPC7400

• MPC7xxx

• MPC82xx

• MPC83xx

• MPC85xx

• MPC86xx

• MPC8xx

• S12x

Infineon^® options:

• C16x, XC16x

• TriCore

Intel^® options:

• 8051 Compatible

• x86/Pentium

Microchip:

• PIC18

• dsPIC

NEC^® options:

• V850

Renesas^® options:

• M16C

• M32C

• R8C/Tiny

• SH-2/3/4

SGI:

• UltraSPARC IIi

STMicroelectronics:

• ST10/Super10

Texas Instruments™ options:

• C2000

• C5000

• C6000

• MSP430

• TMS470

Tips

• Select the device vendor before you specify the hardware device type.

• Selecting a device type specifies the hardware device to define your system's constraints:

  • Default hardware properties appear as the initial values.

  • Parameters with only one possible value cannot be changed.

  • Parameters with more than one possible value provide a list of legal values.

  • Static values for each device type are displayed in the following table.

  • Parameters that you can modify are identified with an x.

  Key:	float and double (not listed) always equal 32 and 64, respectively
  	pointer (not listed) matches the value of int
  	Rounds to = Signed integer division rounds to
  	Shift right = Shift right on a signed integer as arithmetic shift
  Device vendor / Device type	Number of bits					Largest atomic size		Byte ordering	Rounds to	Shift right
  	char	short	int	long	native	int	float
  Generic
  Unspecified (assume 32-bit Generic) (default)	8	16	32	32	32	x	x	Unspecified	x	Set
  Custom	x	x	x	x	x	x	x	x	x	x
  16-bit Embedded Processor	8	16	16	32	16	x	x	x	x	Set
  32-bit Embedded Processor	8	16	32	32	32	x	x	x	x	Set
  32-bit Real Time Simulator	8	16	32	32	32	x	x	x	x	Set
  32-bit x86 compatible	8	16	32	32	32	x	x	Little Endian	Zero	Set
  8-bit Embedded Processor	8	16	16	32	8	x	x	x	x	Set
  MATLAB Host Computer	8	16	32	Host specific value (32 or 64)	Host specific value (32 or 64)	x	x	Little Endian	x	Set
  AMD
  K5/K6/Athlon	8	16	32	32	32	x	x	Little Endian	x	Set
  ARM Compatible
  ARM 7/8/9/10	8	16	32	32	32	Long	Float	x	x	x
  ARM 11	8	16	32	32	32	Long	Double	x	x	x
  ARM Cortex	8	16	32	32	32	Char	None	x	x	x
  ASIC/FPGA
  ASIC/FPGA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
  Analog Devices
  Blackfin	8	16	32	32	32	Long	Double	Little Endian	Zero	Set
  SHARC	32	32	32	32	32	Long	Double	Big Endian	Zero	Set
  TigerSHARC	32	32	32	32	32	Long	Double	Little Endian	Zero	Set
  Atmel
  AVR	8	16	16	32	8	x	x	Little Endian	Zero	Set
  Freescale
  32-bit PowerPC	8	16	32	32	32	Long	Double	Big Endian	Zero	Set
  68332	8	16	32	32	32	x	x	Big Endian	x	Set
  68HC08	8	16	16	32	8	x	x	Big Endian	x	Set
  68HC11	8	16	16	32	8	x	x	Big Endian	x	Set
  ColdFire	8	16	32	32	32	x	x	Big Endian	Zero	Set
  DSP563xx (16-bit mode)	8	16	16	32	16	x	x	x	x	Set
  HC(S)12	8	16	16	32	16	x	x	Big Endian	x	Set
  MPC52xx, MPC5500, MPC55xx, MPC5xx, MPC7400, MPC7xxx, MPC82xx, MPC83xx, MPC86xx, MPC8xx	8	16	32	32	32	Long	Double	x	Zero	Set
  MPC85xx	8	16	32	32	32	Long	Float	x	Zero	Set
  S12x	8	16	16	32	16	x	x	Big Endian	x	Set
  Infineon
  C16x, XC16x	8	16	16	32	16	x	x	Little Endian	Zero	Set
  TriCore	8	16	32	32	32	x	x	Little Endian	x	Set
  Intel
  8051 Compatible	8	16	16	32	8	x	x	x	x	Clear
  x86/Pentium	8	16	32	32	32	x	x	Little Endian	x	Set
  Microchip
  PIC18	8	16	16	32	8	x	x	Little Endian	Zero	Set
  dsPIC	8	16	16	32	16	x	x	Little Endian	Zero	Set
  NEC
  V850	8	16	32	32	32	x	x	x	x	x
  Renesas
  M16C	8	16	16	32	16	x	x	Little Endian	x	x
  M32C	8	16	x	32	x	x	x	Little Endian	x	x
  R8C/Tiny	8	16	16	32	16	x	x	Little Endian	x	x
  SH-2/3/4	8	16	32	32	32	x	x	x	x	x
  SGI
  UltraSPARC IIi	8	16	32	32	32	x	x	Big Endian	x	Set
  STMicroelectronics
  ST10/Super10	8	16	16	32	16	x	x	Little Endian	Zero	Set
  Texas Instruments
  C2000	16	16	16	32	16	Int	None	x	Zero	Set
  C5000	16	16	16	32	16	Int	None	Big Endian	Zero	Set
  C6000	8	16	32	40	32	Int	None	x	Zero	Set
  MSP430	8	16	16	32	16	x	x	Little Endian	Zero	Set
  TMS470	8	16	32	32	x	x	x	x	x	x

• If your production hardware does not match any of the listed types, select Unspecified (assume 32-bit Generic) if it has the characteristics of a generic 32-bit microprocessor; otherwise select Custom.

• The Device vendor and Device type fields both share the same command line parameter: ProdHWDeviceType. When specifying this parameter from the command line, separate the device vendor and device type values using the characters —>. For example: 'Intel->8051 Compatible'.

• To add Device vendor and Device type values to the default set that is displayed on the Hardware Implementation pane, see Register Additional Device Vendor and Device Type Values in the Simulink Coder documentation.

Dependencies

The options available in the drop-down menu are determined by the Device vendor parameter.

Selecting ASIC/FPGA enables the Emulation hardware (code generation only) subpane.

Selecting any other device type sets the following device-specific parameters:

• Number of bits: char

• Number of bits: short

• Number of bits: int

• Number of bits: long

• Number of bits: float

• Number of bits: double

• Number of bits: native

• Number of bits: pointer

• Largest atomic size: integer

• Largest atomic size: floating-point

• Byte ordering

• Signed integer division rounds to

• Shift right on a signed integer as arithmetic shift

Whether you can modify a device-specific parameter varies according to device type. Parameters that cannot be modified for a device are greyed out in the GUI display.

Command-Line Information

Parameter: ProdHWDeviceType

Type: string

Value: any valid value (see tips)

Default: 'Generic->Unspecified (assume 32-bit Generic)'

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	No impact
Safety precaution	No impact

See Also

• Device vendor (production hardware)

• Device type (test hardware)

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

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Number of bits: char

Describe the character bit length for the production hardware.

Settings

Default: 8

Minimum: 8

Maximum: 32

Enter a value between 8 and 32.

Tip

All values must be a multiple of 8.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: ProdBitPerChar

Type: integer

Value: any valid value

Default: 8

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	Target specific
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: short

Describe the data bit length for the production hardware.

Settings

Default: 16

Minimum: 8

Maximum: 32

Enter a value between 8 and 32.

Tip

All values must be a multiple of 8.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: ProdBitPerShort

Type: integer

Value: any valid value

Default: 16

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	Target specific
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: int

Describe the data integer bit length for the production hardware.

Settings

Default: 32

Minimum: 8

Maximum: 32

Enter a number between 8 and 32.

Tip

All values must be a multiple of 8.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: ProdBitPerInt

Type: integer

Value: any valid value

Default: 32

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	Target specific
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: long

Describe the data bit lengths for the production hardware.

Settings

Default: 32

Minimum: 32

Maximum: 64

Enter a value between 32 and 64.

Tip

All values must be a multiple of 8 and between 32 and 64.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: ProdBitPerLong

Type: integer

Value: any valid value

Default: 32

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	Target specific
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: float

Describe the bit length of floating-point data for the production hardware (read-only)

Settings

Default: 32

Always equals 32.

Command-Line Information

Parameter: ProdBitPerFloat

Type: integer

Value: 32 (read-only)

Default: 32

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	No impact
Safety precaution	No impact

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: double

Describe the bit-length of double data for the production hardware (read-only).

Settings

Default: 64

Always equals 64.

Command-Line Information

Parameter: ProdBitPerDouble

Type: integer

Value: 64 (read only)

Default: 64

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	No impact
Safety precaution	No impact

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: native

Describe the microprocessor native word size for the production hardware.

Settings

Default: 32

Minimum: 8

Maximum: 64

Enter a value between 8 and 64.

Tip

All values must be a multiple of 8.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: ProdWordSize

Type: integer

Value: any valid value

Default: 32

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	Target specific
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: pointer

Describe the bit-length of pointer data for the production hardware (read-only).

Settings

Default: matches the setting for Number of bits: int

Minimum: 8

Maximum: 32

Command-Line Information

Parameter: ProdBitPerPointer

Type: integer

Value: any valid value (read-only)

Default: matches the setting for ProdBitPerInt

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	No impact
Safety precaution	No impact

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Largest atomic size: integer

Specify the largest integer data type that can be atomically loaded and stored on the production hardware.

Settings

Default: Char

Char

Specifies that char is the largest integer data type that can be atomically loaded and stored on the production hardware.

Short

Specifies that short is the largest integer data type that can be atomically loaded and stored on the production hardware.

Int

Specifies that int is the largest integer data type that can be atomically loaded and stored on the production hardware.

Long

Specifies that long is the largest integer data type that can be atomically loaded and stored on the production hardware.

Tip

This parameter is used, where possible, to optimize away unnecessary double-buffering or unnecessary semaphore protection, based on data size, in generated multirate code.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: ProdLargestAtomicInteger

Type: string

Value: 'Char' | 'Short' | 'Int' | 'Long'

Default: 'Char'

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	Target specific
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Largest atomic size: floating-point

Specify the largest floating-point data type that can be atomically loaded and stored on the production hardware.

Settings

Default: None

Float

Specifies that float is the largest floating-point data type that can be atomically loaded and stored on the production hardware.

Double

Specifies that double is the largest floating-point data type that can be atomically loaded and stored on the production hardware.

None

Specifies that there is no applicable setting or not to use this parameter in generating multirate code.

Tip

This parameter is used, where possible, to optimize away unnecessary double-buffering or unnecessary semaphore protection, based on data size, in generated multirate code.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: ProdLargestAtomicFloat

Type: string

Value: 'Float' | 'Double' | 'None'

Default: 'None'

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	Target specific
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Byte ordering

Describe the byte ordering for the production hardware.

Settings

Default: Unspecified

Unspecified

Specifies that the code determines the endianness of the hardware. This is the least efficient choice.

Big Endian

The most significant byte appears first.

Little Endian

The least significant byte appears first.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: ProdEndianess

Type: string

Value: 'Unspecified' | 'LittleEndian' | 'BigEndian'

Default: 'Unspecified'

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	No impact
Safety precaution	No impact

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Signed integer division rounds to

Describe how to produce a signed integer quotient for the production hardware.

Settings

Default: Undefined

Undefined

Choose this option if neither Zero nor Floor describes the compiler's behavior, or if that behavior is unknown.

Zero

If the quotient is between two integers, the compiler chooses the integer that is closer to zero as the result.

Floor

If the quotient is between two integers, the compiler chooses the integer that is closer to negative infinity.

Tips

• Use the Integer rounding mode parameter on your model's blocks to simulate the rounding behavior of the C compiler that you use to compile code generated from the model. This setting appears on the Signal Attributes pane of the parameter dialog boxes of blocks that can perform signed integer arithmetic, such as the Product block.

• For most blocks, the value of Integer rounding mode completely defines rounding behavior. For blocks that support fixed-point data and the Simplest rounding mode, the value of Signed integer division rounds to also affects rounding. For details, see Rounding in the Simulink Fixed Point User's Guide.

• See Hardware Implementation Options in the Simulink Coder documentation for information on how this option affects code generation.

• The following table illustrates the compiler behavior described by the options for this parameter.

  N	D	Ideal N/D	Zero	Floor	Undefined
  33	4	8.25	8	8	8
  -33	4	-8.25	-8	-9	-8 or -9
  33	-4	-8.25	-8	-9	-8 or -9
  -33	-4	8.25	8	8	8 or 9

Dependency

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: ProdIntDivRoundTo

Type: string

Value: 'Floor' | 'Zero' | 'Undefined'

Default: 'Undefined'

Recommended settings

Application	Setting
Debugging	No impact for simulation and during development. Undefined for production code generation.
Traceability	No impact for simulation and during development. Zero or Floor for production code generation.
Efficiency	No impact for simulation and during development. Zero for production code generation.
Safety precaution	No impact for simulation and during development. Floor for production code generation.

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Shift right on a signed integer as arithmetic shift

Describe how your compiler rounds the result of two signed integers for the production hardware.

Settings

Default: On

On

Generates simple efficient code whenever the Simulink model performs arithmetic shifts on signed integers.

Off

Generates fully portable but less efficient code to implement right arithmetic shifts.

Tips

• Select this parameter if the C compiler implements a signed integer right shift as an arithmetic right shift.

• An arithmetic right shift fills bits vacated by the right shift with the value of the most significant bit, which indicates the sign of the number in twos complement notation.

Dependency

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: ProdShiftRightIntArith

Type: string

Value: 'on' | 'off'

Default: 'on'

Recommended settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	On
Safety precaution	No impact

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

None

Specify whether the test hardware differs from the deployment hardware.

Settings

Default: On

On

Specifies that the hardware used to test the code generated from the model is the same as the production hardware, or has the same characteristics.

Off

Specifies that the hardware used to test the code generated from the model has different characteristics than the production hardware.

Tips

• You can generate code that runs on the test hardware but behaves as if it had been generated for and executed on the deployment hardware.

• The Embedded hardware (simulation and code generation) subpane specifies the deployment hardware properties. The Emulation hardware (code generation only) subpane is used to specify the test hardware properties.

Dependency

Enables the Emulation hardware subpane.

Command-Line Information

Parameter: ProdEqTarget

Type: string

Value: 'on' | 'off'

Default: 'on'

Recommended settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	No impact
Safety precaution	No impact

More information

• Specifying Emulation Hardware Characteristics

• Hardware Implementation Options

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Device vendor

Select the manufacturer of the hardware that will be used to test the code generated from the model.

Settings

Default: Generic

• AMD

• ARM Compatible

• ASIC/FPGA (Embedded hardware subpane only)

• Analog Devices

• Atmel

• Freescale

• Infineon

• Intel

• Microchip

• NEC

• Renesas

• SGI

• STMicroelectronics

• Texas Instruments

• Generic

Tips

• Select the device vendor before you specify the hardware device used to define your system's constraints.

• If your test hardware does not match any of the listed vendors, select Generic.

• The Device vendor and Device type fields both share the same command line parameter: TargetHWDeviceType. When specifying this parameter from the command line, separate the device vendor and device type values using the characters —>. For example: 'Intel->8051 Compatible'.

• To add Device vendor and Device type values to the default set that is displayed on the Hardware Implementation pane, see Register Additional Device Vendor and Device Type Values in the Simulink Coder documentation.

Dependencies

Selecting a value for this parameter allows you to view a list of supported devices from the selected vendor in the Device type drop-down menu.

Command-Line Information

Parameter: TargetHWDeviceType

Type: string

Value: any valid value (see tips)

Default: 'Generic->Unspecified (assume 32-bit Generic)'

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	No impact
Safety precaution	No impact

See Also

• Device type (test hardware)

• Specifying Emulation Hardware Characteristics

• Hardware Implementation Options

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Device type

Select the type of hardware that will be used to test the code generated from the model.

Settings

Default: Unspecified (assume 32–bit Generic)

Generic options:

• 16-bit Embedded Processor

• 32-bit Embedded Processor

• 32-bit Real-Time Simulator

• 32-bit x86 compatible

• 8-bit Embedded Processor

• Custom

• MATLAB Host Computer (available as an Emulation hardware device and, for MATLAB Coder configuration, as an Embedded hardware device)

• Unspecified (assume 32-bit Generic)

AMD options:

• K5/K6/Athlon

ARM Compatible options:

• ARM 10

• ARM 11

• ARM 7

• ARM 8

• ARM 9

• ARM Cortex

ASIC/FPGA options: (Embedded hardware subpane only)

• ASIC/FPGA

Analog Devices options:

• Blackfin

• SHARC

• TigerSHARC

Atmel options:

• AVR

Freescale options:

• 32-bit PowerPC

• 68332

• 68HC08

• 68HC11

• ColdFire

• DSP563xx (16-bit mode)

• HC(S)12

• MPC7400

• MPC7xxx

• MPC82xx

• MPC83xx

• MPC85xx

• MPC86xx

• MPC8xx

• S12x

Infineon options:

• C16x, XC16x

• TriCore

Intel options:

• 8051 Compatible

• x86/Pentium

Microchip:

• PIC18

• dsPIC

NEC options:

• V850

Renesas options:

• M16C

• M32C

• R8C/Tiny

• SH-2/3/4

SGI:

• UltraSPARC IIi

STMicroelectronics:

• ST10/Super10

Texas Instruments options:

• C2000

• C5000

• C6000

• MSP430

• TMS470

Tips

• Select the device vendor before you specify the hardware device type.

• Selecting a device type specifies the hardware device to define your system's constraints:

  • Default hardware properties appear as the initial values.

  • Parameters with only one possible value cannot be changed.

  • Parameters with more than one possible value provide a list of legal values.

  • Static values for each device type are displayed in the following table.

  • Parameters that you can modify are identified with an x.

  Key:	float and double (not listed) always equal 32 and 64, respectively
  	pointer (not listed) matches the value of int
  	Rounds to = Signed integer division rounds to
  	Shift right = Shift right on a signed integer as arithmetic shift
  Device vendor / Device type	Number of bits					Largest atomic size		Byte ordering	Rounds to	Shift right
  	char	short	int	long	native	int	float
  Generic
  Unspecified (assume 32-bit Generic) (default)	8	16	32	32	32	x	x	Unspecified	x	Set
  Custom	x	x	x	x	x	x	x	x	x	x
  16-bit Embedded Processor	8	16	16	32	16	x	x	x	x	Set
  32-bit Embedded Processor	8	16	32	32	32	x	x	x	x	Set
  32-bit Real Time Simulator	8	16	32	32	32	x	x	x	x	Set
  32-bit x86 compatible	8	16	32	32	32	x	x	Little Endian	Zero	Set
  8-bit Embedded Processor	8	16	16	32	8	x	x	x	x	Set
  MATLAB Host Computer	8	16	32	Host specific value (32 or 64)	Host specific value (32 or 64)	x	x	Little Endian	x	Set
  AMD
  K5/K6/Athlon	8	16	32	32	32	x	x	Little Endian	x	Set
  ARM Compatible
  ARM 7/8/9/10	8	16	32	32	32	Long	Float	x	x	x
  ARM 11	8	16	32	32	32	Long	Double	x	x	x
  ARM Cortex	8	16	32	32	32	Char	None	x	x	x
  ASIC/FPGA
  ASIC/FPGA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
  Analog Devices
  Blackfin	8	16	32	32	32	Long	Double	Little Endian	Zero	Set
  SHARC	32	32	32	32	32	Long	Double	Big Endian	Zero	Set
  TigerSHARC	32	32	32	32	32	Long	Double	Little Endian	Zero	Set
  Atmel
  AVR	8	16	16	32	8	x	x	Little Endian	Zero	Set
  Freescale
  32-bit PowerPC	8	16	32	32	32	Long	Double	Big Endian	Zero	Set
  68332	8	16	32	32	32	x	x	Big Endian	x	Set
  68HC08	8	16	16	32	8	x	x	Big Endian	x	Set
  68HC11	8	16	16	32	8	x	x	Big Endian	x	Set
  ColdFire	8	16	32	32	32	x	x	Big Endian	Zero	Set
  DSP563xx (16-bit mode)	8	16	16	32	16	x	x	x	x	Set
  HC(S)12	8	16	16	32	16	x	x	Big Endian	x	Set
  MPC52xx, MPC5500, MPC55xx, MPC5xx, MPC7400, MPC7xxx, MPC82xx, MPC83xx, MPC86xx, MPC8xx	8	16	32	32	32	Long	Double	x	Zero	Set
  MPC85xx	8	16	32	32	32	Long	Float	x	Zero	Set
  S12x	8	16	16	32	16	x	x	Big Endian	x	Set
  Infineon
  C16x, XC16x	8	16	16	32	16	x	x	Little Endian	Zero	Set
  TriCore	8	16	32	32	32	x	x	Little Endian	x	Set
  Intel
  8051 Compatible	8	16	16	32	8	x	x	x	x	Clear
  x86/Pentium	8	16	32	32	32	x	x	Little Endian	x	Set
  Microchip
  PIC18	8	16	16	32	8	x	x	Little Endian	Zero	Set
  dsPIC	8	16	16	32	16	x	x	Little Endian	Zero	Set
  NEC
  V850	8	16	32	32	32	x	x	x	x	x
  Renesas
  M16C	8	16	16	32	16	x	x	Little Endian	x	x
  M32C	8	16	x	32	x	x	x	Little Endian	x	x
  R8C/Tiny	8	16	16	32	16	x	x	Little Endian	x	x
  SH-2/3/4	8	16	32	32	32	x	x	x	x	x
  SGI
  UltraSPARC IIi	8	16	32	32	32	x	x	Big Endian	x	Set
  STMicroelectronics
  ST10/Super10	8	16	16	32	16	x	x	Little Endian	Zero	Set
  Texas Instruments
  C2000	16	16	16	32	16	Int	None	x	Zero	Set
  C5000	16	16	16	32	16	Int	None	Big Endian	Zero	Set
  C6000	8	16	32	40	32	Int	None	x	Zero	Set
  MSP430	8	16	16	32	16	x	x	Little Endian	Zero	Set
  TMS470	8	16	32	32	x	x	x	x	x	x

• If your test hardware does not match any of the listed types, select Unspecified (assume 32-bit Generic) if it has the characteristics of a generic 32-bit microprocessor; otherwise select Custom.

• The Device vendor and Device type fields both share the same command line parameter: TargetHWDeviceType. When specifying this parameter from the command line, separate the device vendor and device type values using the characters —>. For example: 'Intel->8051 Compatible'.

• To add Device vendor and Device type values to the default set that is displayed on the Hardware Implementation pane, see Register Additional Device Vendor and Device Type Values in the Simulink Coder documentation.

Dependencies

The options available in the drop-down menu are determined by the Device vendor parameter.

Selecting a device type sets the following device-specific parameters:

• Number of bits: char

• Number of bits: short

• Number of bits: int

• Number of bits: long

• Number of bits: float

• Number of bits: double

• Number of bits: native

• Number of bits: pointer

• Largest atomic size: integer

• Largest atomic size: floating-point

• Byte ordering

• Signed integer division rounds to

• Shift right on a signed integer as arithmetic shift

Whether you can modify a device-specific parameter varies according to device type. Parameters that cannot be modified for a device are greyed out in the GUI display.

Command-Line Information

Parameter: TargetHWDeviceType

Type: string

Value: any valid value (see tips)

Default: 'Generic->Unspecified (assume 32-bit Generic)'

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	No impact
Safety precaution	No impact

See Also

• Device vendor (test hardware)

• Specifying Emulation Hardware Characteristics

• Hardware Implementation Options

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: char

Describe the character bit length for the hardware used to test code.

Settings

Default: 8

Minimum: 8

Maximum: 32

Enter a value between 8 and 32.

Tip

All values must be a multiple of 8.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: TargetBitPerChar

Type: integer

Value: any valid value

Default: 8

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	Target specific
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Specifying Emulation Hardware Characteristics

• Hardware Implementation Options

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: short

Describe the data bit length for the hardware used to test code.

Settings

Default: 16

Minimum: 8

Maximum: 32

Enter a value between 8 and 32.

Tip

All values must be a multiple of 8.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: TargetBitPerShort

Type: integer

Value: any valid value

Default: 16

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	Target specific
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Specifying Emulation Hardware Characteristics

• Hardware Implementation Options

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: int

Describe the data integer bit length of the hardware used to test code.

Settings

Default: 32

Minimum: 8

Maximum: 32

Enter a number between 8 and 32.

Tip

All values must be a multiple of 8.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: TargetBitPerInt

Type: integer

Value: any valid value

Default: 32

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	Target specific
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Specifying Emulation Hardware Characteristics

• Hardware Implementation Options

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: long

Describe the data bit lengths for the hardware used to test code.

Settings

Default: 32

Minimum: 32

Maximum: 64

Enter a value between 32 and 64. (The value 64 is selected by default if you run MATLAB software on a 64-bit host computer and select the MATLAB host as the test hardware — that is, TargetHWDeviceType equals 'Generic->MATLAB Host Computer'.)

Tip

All values must be a multiple of 8 and between 32 and 64.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: TargetBitPerLong

Type: integer

Value: any valid value

Default: 32

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	Target specific
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Specifying Emulation Hardware Characteristics

• Hardware Implementation Options

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: float

Describe the bit length of floating-point data for the hardware used to test code (read-only).

Settings

Default: 32

Always equals 32.

Command-Line Information

Parameter: TargetBitPerFloat

Type: integer

Value: 32 (read-only)

Default: 32

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	No impact
Safety precaution	No impact

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: double

Describe the bit-length of double data for the hardware used to test code (read-only).

Settings

Default: 64

Always equals 64.

Command-Line Information

Parameter: TargetBitPerDouble

Type: integer

Value: 64 (read only)

Default: 64

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	No impact
Safety precaution	No impact

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: native

Describe the microprocessor native word size for the hardware used to test code.

Settings

Default: 32

Minimum: 8

Maximum: 64

Enter a value between 8 and 64. (The value 64 is selected by default if you run MATLAB software on a 64-bit host computer and select the MATLAB host as the test hardware — that is, TargetHWDeviceType equals 'Generic->MATLAB Host Computer'.)

Tip

All values must be a multiple of 8.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: TargetWordSize

Type: integer

Value: any valid value

Default: 32

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	Target specific
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Specifying Emulation Hardware Characteristics

• Hardware Implementation Options

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Number of bits: pointer

Describe the bit-length of pointer data for the hardware used to test code (read-only).

Settings

Default: matches the setting for Number of bits: int

Minimum: 8

Maximum: 32

Command-Line Information

Parameter: TargetBitPerPointer

Type: integer

Value: any valid value (read only)

Default: matches the setting for TargetBitPerInt

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	No impact
Safety precaution	No impact

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Largest atomic size: integer

Specify the largest integer data type that can be atomically loaded and stored on the hardware used to test code.

Settings

Default: Char

Char

Specifies that char is the largest integer data type that can be atomically loaded and stored on the hardware used to test code.

Short

Specifies that short is the largest integer data type that can be atomically loaded and stored on the hardware used to test code.

Int

Specifies that int is the largest integer data type that can be atomically loaded and stored on the hardware used to test code.

Long

Specifies that long is the largest integer data type that can be atomically loaded and stored on the hardware used to test code.

Tip

This parameter is used, where possible, to optimize away unnecessary double-buffering or unnecessary semaphore protection, based on data size, in generated multirate code.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: TargetLargestAtomicInteger

Type: string

Value: 'Char' | 'Short' | 'Int' | 'Long'

Default: 'Char'

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	Target specific
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Largest atomic size: floating-point

Specify the largest floating-point data type that can be atomically loaded and stored on the hardware used to test code.

Settings

Default: None

Float

Specifies that float is the largest floating-point data type that can be atomically loaded and stored on the hardware used to test code.

Double

Specifies that double is the largest floating-point data type that can be atomically loaded and stored on the hardware used to test code.

None

Specifies that there is no applicable setting or not to use this parameter in generating multirate code.

Tip

This parameter is used, where possible, to optimize away unnecessary double-buffering or unnecessary semaphore protection, based on data size, in generated multirate code.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: TargetLargestAtomicFloat

Type: string

Value: 'Float' | 'Double' | 'None'

Default: 'None'

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	Target specific
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Hardware Implementation Options

• Specifying Embedded Hardware Characteristics

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Byte ordering

Describe the byte ordering for the hardware used to test code.

Settings

Default: Unspecified

Unspecified

Specifies that the code determines the endianness of the hardware. This is the least efficient choice.

Big Endian

The most significant byte comes first.

Little Endian

The least significant byte comes first.

Note   For guidelines to observe when configuring Embedded hardware controls for code generation, see Hardware Implementation Options in the Simulink Coder documentation.

Dependencies

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: TargetEndianess

Type: string

Value: 'Unspecified' | 'LittleEndian' | 'BigEndian'

Default: 'Unspecified'

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	No impact
Safety precaution	No impact for simulation and during development. Match operation of compiler and hardware for code generation.

See Also

• Specifying Emulation Hardware Characteristics

• Hardware Implementation Options

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Signed integer division rounds to

Describe how to produce a signed integer quotient for the hardware used to test code.

Settings

Default: Undefined

Undefined

Choose this option if neither Zero nor Floor describes the compiler's behavior, or if that behavior is unknown.

Zero

If the quotient is between two integers, the compiler chooses the integer that is closer to zero as the result.

Floor

If the quotient is between two integers, the compiler chooses the integer that is closer to negative infinity.

Tips

• Use the Integer rounding mode parameter on your model's blocks to simulate the rounding behavior of the C compiler that you use to compile code generated from the model. This setting appears on the Signal Attributes pane of the parameter dialog boxes of blocks that can perform signed integer arithmetic, such as the Product block.

• For most blocks, the value of Integer rounding mode completely defines rounding behavior. For blocks that support fixed-point data and the Simplest rounding mode, the value of Signed integer division rounds to also affects rounding. For details, see Rounding in the Simulink Fixed Point User's Guide.

• See Hardware Implementation Options in the Simulink Coder documentation for information on how this option affects code generation.

• The following table illustrates the compiler behavior described by the options for this parameter.

  N	D	Ideal N/D	Zero	Floor	Undefined
  33	4	8.25	8	8	8
  -33	4	-8.25	-8	-9	-8 or -9
  33	-4	-8.25	-8	-9	-8 or -9
  -33	-4	8.25	8	8	8 or 9

Dependency

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: TargetIntDivRoundTo

Type: string

Value: 'Floor' | 'Zero' | 'Undefined'

Default: 'Undefined'

Recommended settings

Application	Setting
Debugging	No impact for simulation and during development. Undefined for production code generation.
Traceability	No impact for simulation and during development. Zero or Floor for production code generation.
Efficiency	No impact for simulation and during development. Zero for production code generation.
Safety precaution	No impact for simulation and during development. Floor for production code generation.

See Also

• Specifying Emulation Hardware Characteristics

• Hardware Implementation Options

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Shift right on a signed integer as arithmetic shift

Describe how your compiler rounds the result of two signed integers for the hardware used to test code.

Settings

Default: On

On

Generates simple efficient code whenever the Simulink model performs arithmetic shifts on signed integers.

Off

Generates fully portable but less efficient code to implement right arithmetic shifts.

Tips

• Select this parameter if your C compiler implements a signed integer right shift as an arithmetic right shift.

• An arithmetic right shift fills bits vacated by the right shift with the value of the most significant bit, which indicates the sign of the number in twos complement notation. It is equivalent to dividing the number by 2.

• This setting affects only code generation

Dependency

• Selecting a device using the Device vendor and Device type parameters sets a device-specific value for this parameter.

• This parameter is enabled only if it can be modified for the currently selected device.

Command-Line Information

Parameter: TargetShiftRightIntArith

Type: string

Value: 'on' | 'off'

Default: 'on'

Recommended settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	On
Safety precaution	No impact

See Also

• Specifying Emulation Hardware Characteristics

• Hardware Implementation Options

• Configuration Parameters Dialog Box

• Hardware Implementation Pane

Back to Top

Diagnostics Pane: Stateflow

Model Referencing Pane

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