Floating Point Co-Processor uM-FPU v3.1

Product Description

Description: The new uM-FPU v3.1 by Micromega has all the proven features of the v3 with some interesting new GPS NMEA string parsing features. The uM-FPU v3.1 chip interfaces to virtually any microcontroller using a SPI, I²C, or serial interface, making it ideal for applications requiring floating point math, including sensor readings, robotic control, GPS, data transformations and other embedded control applications. The uM-FPU v3.1 chip supports 32-bit IEEE 754 compatible floating point and 32-bit integer operations. The uM-FPU v3.1 is RoHS compliant, operates from a 2.7V, 3.3V or 5V supply, and is available in 18-pin DIP, SOIC-18 or QFN-44 packages.

Interface examples are available for BASIC Stamp, Javelin, PICAXE, 16F87x, ARMmite, and ARMexpress controllers.

Features:

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  18-pin DIP


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  Supports both I²C, SPI, and serial interfaces


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  256 byte instruction buffer


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  128 general purpose 32-bit registers for storing floating point or long integer values


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  8 temporary 32-bit registers to support parentheses in calculations


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  2048 bytes Flash memory for user-defined functions


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  1024 bytes EEPROM for data storage or user-defined functions


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  10 to 20 times faster than uM-FPU V2 for all floating point operations


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  Up to 70 times faster for advanced instructions


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  Supports 2.7V, 3.3V and 5V supply voltage


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  I²C compatible interface up to 400 kHz


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  SPI compatible interface up to 15 MHz


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  Expanded instruction set, matrix operations, A/D conversion, string handling


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  Easy migration from uM-FPU V2


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  See What's New in V3 for more details on new features

Floating Point Operations:

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  Tons of new functions


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  Set, Add, Subtract, Multiply, Divide


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  Sqrt, Log, Log10, Exp, Exp10, Power, Root


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  Sin, Cos, Tan


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  Asin, Acos, Atan, Atan2


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  Floor, Ceil, Round, Min, Max, Fraction


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  Negate, Abs, Inverse


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  Convert Radians to Degrees


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  Convert Degrees to Radians


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  Compare, Status

Long Integer Operations:

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  Set, Add, Subtract, Multiply, Divide, Unsigned Divide


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  Negate, Abs


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  Compare, Unsigned Compare, Status

Conversion Functions:

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  Convert 8-bit and 16-bit integers to floating point


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  Convert 8-bit and 16-bit integers to long integer


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  Convert long integer to floating point


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  Convert floating point to long integer


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  Convert floating point to ASCII


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  Convert floating point to formatted ASCII


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  Convert long integer to ASCII


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  Convert long integer to formatted ASCII


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  Convert ASCII to floating point


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  Convert ASCII to long integer

Documents:

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  uM-FPU-v3.1 Datasheet


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  uM-FPU-v3.1 Instruction Set


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  Reference documentation


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  Micromega Website