SW006012 Microchip Technology, SW006012 Datasheet - Page 204

• Manufacturer Part Number: SW006012
• Description: C COMPILER FOR DSPIC30F FAMILY
• Manufacturer: Microchip Technology
• Type: MPLAB® C30 Compilerr
• Series: PIC24 & DsPICr

Specifications of SW006012

• Supported Families: PIC24, DsPIC30F And DsPIC33F
• Core Architecture: PIC, DsPIC
• Kit Contents: Software And Docs
• Mcu Supported Families: PIC24 MCUs And DsPIC DSCs
• Tool Type: Compiler
• Processor Series: PIC24, dsPIC
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: dsPIC30F
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MPLAB
D.13 PRAGMAS
DS51284F-page 198
®
C30 User’s Guide
MPLAB C18 uses pragmas for sections (code, romdata, udata, idata), interrupts
(high-priority and low-priority) and variable locations (bank, section).
MPLAB C30 uses non-ANSI attributes instead of pragmas.
TABLE D-5:
EXAMPLE D-4:
EXAMPLE D-5:
EXAMPLE D-6:
#pragma udata [name]
#pragma idata [name]
#pragma romdata [name]
#pragma code [name]
#pragma interruptlow
#pragma interrupt
#pragma varlocate bank
#pragma varlocate name
*dsPIC
C18
C30
C18
C30
C18
C30
Note:
Pragma (MPLAB C18)
®
#pragma udata mybss
int __attribute__((__section__(".mybss"))) gi;
#pragma idata myDataSection=0x100;
int __attribute__((address(0x100))) Mabonga = 1;
#pragma romdata const_table
const rom char my_const_array[10] =
const __attribute__((space(auto_psv)))
DSC devices do not have banks.
int gi;
int Mabonga = 1;
The MPLAB C30 compiler does not directly support accessing variables in
program space. Variables so allocated must be explicitly accessed by the
programmer, usually using table-access inline assembly instructions, or
using the program space visibility window. See Section 4.15 “Program
Space Visibility (PSV) Usage” for more on the PSV window.
{0,1,2,3,4,5,6,7,8,9};
char my_const_array[10] = {0,1,2,3,4,5,6,7,8,9};
MPLAB
SPECIFY AN UNINITIALIZED VARIABLE IN A USER SECTION
IN DATA MEMORY
DATA MEMORY
SPECIFY A VARIABLE TO BE PLACED IN PROGRAM
MEMORY
LOCATE THE VARIABLE MABONGA AT ADDRESS 0X100 IN
®
C18 PRAGMAS VS. MPLAB C30 ATTRIBUTES
__
__
__
__
__
__
__
NA*
NA*
attribute
attribute
attribute
attribute
attribute
attribute
attribute
Attribute (MPLAB C30)
__
__
__
__
__
__
__
((section ("name")))
((section ("name")))
((space (prog)))
((section ("name"))),
((space (prog)))
((interrupt))
((interrupt, shadow))
© 2007 Microchip Technology Inc.