参数资料
型号: DSPIC33FJ256MC710T-I/PT
厂商: Microchip Technology
文件页数: 44/90页
文件大小: 0K
描述: IC DSPIC MCU/DSP 256K 100TQFP
产品培训模块: dsPIC33F DMAC
Asynchronous Stimulus
标准包装: 1,200
系列: dsPIC™ 33F
核心处理器: dsPIC
芯体尺寸: 16-位
速度: 40 MIP
连通性: CAN,I²C,IrDA,LIN,SPI,UART/USART
外围设备: 欠压检测/复位,DMA,电机控制 PWM,QEI,POR,PWM,WDT
输入/输出数: 85
程序存储器容量: 256KB(256K x 8)
程序存储器类型: 闪存
RAM 容量: 30K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 3.6 V
数据转换器: A/D 24x10b/12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 100-TQFP
包装: 带卷 (TR)
配用: AC164333-ND - MODULE SKT FOR PM3 100QFP
MA330013-ND - MODULE PLUG-IN DSPIC33 100TQFP
DV164033-ND - KIT START EXPLORER 16 MPLAB ICD2
DM240001-ND - BOARD DEMO PIC24/DSPIC33/PIC32
2005 Microchip Technology Inc.
Preliminary
DS70155C-page 47
dsPIC33F
11.1
Math Library
The dsPIC33F Math Library is the compiled version of
the math library that is distributed with the highly
optimized, ANSI-compliant dsPIC33F MPLAB C30 C
Compiler (SW006012). It contains advanced single and
double-precision
floating-point
arithmetic
and
trigonometric functions from the standard ‘C’ header
file (math.h). The library delivers small program code
size and data size, reduced cycles and high accuracy.
Features
The math library is callable from either MPLAB
C30 or dsPIC33F assembly language.
The functions are IEEE-754 compliant, with
signed zero, signed infinity, NaN (Not a Number)
and denormal support and operated in the “Round
to Nearest” mode.
Compatible with MPLAB ASM30 and MPLAB
LINK30, which are available at no charge from
Microchip’s web site.
Table 11-2 shows the memory usage and performance
of the Math Library. Table 11-3 lists the math functions
that are included.
TABLE 11-2:
MEMORY USAGE AND
PERFORMANCE
TABLE 11-3:
MATH FUNCTIONS
Memory Usage (bytes)(1,2)
Code size
5250
Data size
4
Performance (cycles)(1,3)
add
122
sub
124
mul
109
div
361
Rem
385
Sqrt
492
Note 1:
Results are based on using dsPIC33F
MPLAB C30 C Compiler (SW006012),
version 1.20.
2:
Maximum “Memory Usage” when all
functions in the library are loaded. Most
applications will use less.
3:
Average 32-bit floating-point performance
results.
Single and Double-Precision Floating-Point Functions
Arithmetic Functions
add, subtract, multiply, divide, remainder
Root and Power Functions
pow, sqrt
Trigonometric and Hyperbolic Functions
acos, asin, atan, atan2, cos, cosh, sin, sinh, tan, tanh
Logarithmic and Exponential Functions
exp, log, log10, frexp, ldexp
Rounding Functions
ceil, floor
Absolute Value Functions
fabs
Modular Arithmetic Functions
fmod, modf
Comparison and Conversions
comparison, integer and floating-point conversions
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