Ufix 2

USB Flash Driver Format Tool Ufix-II for 4GB/8GB/16GB/32GB/64GB/128GB USB 2.0. Search Downloads.

Warning

The SpinalHDL fixed point support is only partially used/tested, if you find any bugs with it or you think that some functionality is missing, please create a github issue. Also, please do not use undocumented features in production code.

Description¶

The UFix and SFix types correspond to a vector of bits that can be used for fixed point arithmetic.

Declaration¶

The syntax to declare a fixed point number is as follows:

Unsigned Fixed Point¶

Syntax

bit width

resolution

max

min

UFix(peak:ExpNumber, resolution:ExpNumber)

peak-resolution

2^resolution

2^peak-2^resolution

0

UFix(peak:ExpNumber, width:BitCount)

width

2^(peak-width)

2^peak-2^(peak-width)

0

Signed Fixed Point¶

Syntax

bit width

resolution

max

min

SFix(peak:ExpNumber, resolution:ExpNumber)

peak-resolution+1

2^resolution

2^peak-2^resolution

-(2^peak)

SFix(peak:ExpNumber, width:BitCount)

width

2^(peak-width-1)

2^peak-2^(peak-width-1)

-(2^peak)

Format¶

The chosen format follows the usual way of defining fixed point number format using Q notation. More information there).

For example Q8.2 will mean an fixed point of 8+2 bits, where 8 bit are used for the natural part and 2 bits for the fractional part.If the fixed point number is signed, one more bit is used for the sign.

The resolution is defined as being the smallest power of two that can be represented in this number.

Examples¶

Assignments¶

Valid Assignments¶

An assignment to a fixed point value is valid when there is no bit loss. Any bit loss will result in an error.

If the source fixed point value is too big, the .truncated function will allow you toresize the source number to match the destination size.

Example¶

From a Scala constant¶

Scala BigInts or Doubles can be used as constants when assigning to UFix or SFix signals.

Example¶

Raw value¶

The integer representation of the fixed point number can be read or written using theraw property.

Example¶

Operators¶

The following operators are available for the UFix type

Arithmetic¶

Operator

Description

Returned resolution

Returned amplitude

x + y

Addition

Min(x.resolution, y.resolution)

Max(x.amplitude, y.amplitude)

x - y

Subtraction

Min(x.resolution, y.resolution)

Max(x.amplitude, y.amplitude)

x * y

Multiplication

x.resolution * y.resolution)

x.amplitude * y.amplitude

x >> y

Arithmetic shift right, y : Int

x.amplitude >> y

x.resolution >> y

x << y

Arithmetic shift left, y : Int

x.amplitude << y

x.resolution << y

x >> y

Arithmetic shift right, y : Int

x.amplitude >> y

x.resolution

x << y

Arithmetic shift left, y : Int

x.amplitude << y

x.resolution

Comparison¶

Operator

Description

Return type

x y

Equality

Bool

x =/= y

Inequality

Bool

x > y

Greater than

Bool

x >= y

Greater than or equal

Bool

x > y

Less than

Bool

x >= y

Rm 944 usb drivers for mac free

Less than or equal

Bool

Type cast¶

Operator

Description

Return

x.asBits

Binary cast to Bits

Bits(w(x) bits)

x.asUInt

Binary cast to UInt

UInt(w(x) bits)

x.asSInt

Binary cast to SInt

SInt(w(x) bits)

x.asBools

Cast into a array of Bool

Vec(Bool,width(x))

x.toUInt

Return the corresponding UInt (with truncation)

UInt

x.toSInt

Return the corresponding SInt (with truncation)

SInt

x.toUFix

Return the corresponding UFix

UFix

x.toSFix

Return the corresponding SFix

SFix

Misc¶

Name

Return

Description

x.maxValue

Return the maximum value storable

Double

x.minValue

Return the minimum value storable

Double

x.resolution

x.amplitude * y.amplitude

Double

Freeware
Windows
5.1 MB
365,484

Features:

  • Applicable for PNY/HP 4GB/8GB/16GB/32GB flash drive products.
  • The speed profomance might go down if you execute the program from the normal use or while beginning purchased.

What's New:

  • Fixes when bad blocks over original setting will cause UFD (USB Flash Disk) to be read only. Use this tool can increase reserve bad block and solve read only problem.

Note:

  • User must backup all data in the UFD because Ufix III will format UFD when execution.

Download Key:

  • USB Flash Driver Format Tool Ufix-V for 8GB/16GB/32GB/64GB/128GB USB 3.0
  • USB Flash Driver Format Tool Ufix-III for 4GB/8GB/16GB/32GB USB 2.0
  • USB Flash Driver Format Tool Ufix-II for 4GB/8GB/16GB/32GB/64GB/128GB USB 2.0

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