SW006013 Microchip Technology, SW006013 Datasheet - Page 217

• Manufacturer Part Number: SW006013
• Description: MPLAB C Compiler For DsPIC DSCs
• Manufacturer: Microchip Technology
• Series: DsPIC30F/33Fr
• Type: MPLAB® C Compilerr

Specifications of SW006013

• Supported Families: DsPIC30F, DsPIC33F
• Core Architecture: DsPIC
• Kit Contents: Software And Docs
• Mcu Supported Families: DsPIC30F And DsPIC33F
• Tool Function: Compiler
• Tool Type: Compiler
• Processor Series: dsPIC
• Lead Free Status / RoHS Status: na
• For Use With/related Products: dSPIC DSCs
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

© 2008 Microchip Technology Inc.
_itoaQ15
Description:
Include:
Prototype:
Argument:
Return Value:
_itofQ15
Description:
Include:
Prototype:
Argument:
Return Value:
_Q15log
Description:
Include:
Prototype:
Argument:
Return Value:
_Q15log10
Description:
Include:
Prototype:
Argument:
Return Value:
This function converts the each decimal digit of a Q15 value to its rep-
resentation in ASCII. For example, 1 is converted to 0x31 which is the
ASCII representation of 1.
<libq.h>
void _itoaQ15(_Q15 x, char *s);
x
2
s
None.
This function converts a Q15 value into its corresponding floating point
value.
<libq.h>
float _itofQ15(_Q15 x);
x
2
This function returns a floating point equivalent number. The corre-
sponding floating point range is -1 to 0.99996..
This function finds the natural log of a Q15 value.
<libq.h>
_Q15 _Q15log(_Q15 x);
x
2
This function returns the natural log of x in Q15 format. This value
ranges from -32768 to -1.
This function finds the log (base 10) of a Q15 value.
<libq.h>
_Q15 _Q15log10(_Q15 x);
x
2
This function returns the log of x in Q15 format. This value ranges from
-32768 to 0.
15
15
15
15
-1. The value of this argument ranges from -32768 to 32767.
-1. The value of this argument ranges from -32768 to 32767.
-1. The value of this argument ranges from 12055 to 32767.
-1. The value of this argument ranges from 3277 to 32767.
a fixed point number in Q15 format, which ranges from -2
a buffer holding values in ASCII, at least 8 characters long.
a fixed point number in Q15 format, which ranges from -2
a fixed point number in Q15 format, which ranges from -2
a fixed point number in Q15 format, which ranges from -2
DS51456E-page 213
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