MPLAB C Compiler for PIC24 MCUs and dsPIC DSCs ... - Microchip

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16-Bit C Compiler User’s Guide P parameter ‘identifier’ declared void Parameters may not be declared void. parameter ‘identifier’ has incomplete type Parameters must have complete types. parameter ‘identifier’ has just a forward declaration Parameters must have complete types; forward declarations are insufficient. parameter ‘identifier’ is initialized It is lot legal to initialize parameters. parameter name missing The macro was expecting a parameter name. Check for two commas without a name between. parameter name missing from parameter list Parameter names must be included in the parameter list. parameter name omitted Parameter names may not be omitted. param types given both in param list and separately Parameter types should be given either in the parameter list or separately, but not both. parse error The source line cannot be parsed; it contains errors. pointer value used where a complex value was expected Do not use pointer values where complex values are expected. pointer value used where a floating point value was expected Do not use pointer values where floating-point values are expected. pointers are not permitted as case values A case value must be an integer-valued constant or constant expression. predicate must be an identifier #assert or #unassert require a single identifier as the predicate. predicate’s answer is empty The #assert or #unassert has a predicate and parentheses but no answer inside the parentheses, which is required. previous declaration of ‘identifier’ This message identifies the location of a previous declaration of identifier that conflicts with the current declaration. identifier previously declared here This message identifies the location of a previous declaration of identifier that conflicts with the current declaration. identifier previously defined here This message identifies the location of a previous definition of identifier that conflicts with the current definition. prototype declaration Identifies the line number where a function prototype is declared. Used in conjunction with other error messages. DS51284H-page 176 © 2008 Microchip Technology Inc.
R Diagnostics redeclaration of ‘identifier’ The identifier is multiply declared. redeclaration of ‘enum identifier’ Enums may not be redeclared. ‘identifier’ redeclared as different kind of symbol Multiple, inconsistent declarations exist for identifier. redefinition of ‘identifier’ The identifier is multiply defined. redefinition of ‘struct identifier’ Structs may not be redefined. redefinition of ‘union identifier’ Unions may not be redefined. register name given for non-register variable ‘name’ Attempt to map a register to a variable which is not marked as register. register name not specified for ‘name’ File scope variable ‘name’ declared as a register variable without providing a register. register specified for ‘name’ isn’t suitable for data type Alignment or other restrictions prevent using requested register. request for member ‘identifier’ in something not a structure or union Only structure or unions have members. It is not legal to reference a member of anything else, since nothing else has members. requested alignment is not a constant The argument to the aligned attribute must be a compile-time constant. requested alignment is not a power of 2 The argument to the aligned attribute must be a power of two. requested alignment is too large The alignment size requested is larger than the linker allows. The size must be 4096 or less and a power of 2. return type is an incomplete type Return types must be complete. S save variable ‘name’ index not constant The subscript of the array ‘name’ is not a constant integer. save variable ‘name’ is not word aligned The object being saved must be word aligned save variable ‘name’ size is not even The object being saved must be evenly sized. save variable ‘name’ size is not known The object being saved must have a known size. © 2008 Microchip Technology Inc. DS51284H-page 177
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MPLAB ® C COMPILER FOR PIC24 MCUs
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Table of Contents A.5 Identifiers .
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INTRODUCTION MPLAB ® C COMPILER FO
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CONVENTIONS USED IN THIS GUIDE The
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THE MICROCHIP WEB SITE Preface C Re
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1.1 INTRODUCTION 1.2 HIGHLIGHTS MPL
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1.5 COMPILER FEATURE SET Compiler O
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Differences Between 16-Bit Device C
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Using the Compiler on the Command L
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3.6 ENVIRONMENT VARIABLES Using the
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4.1 INTRODUCTION 4.2 HIGHLIGHTS 4.3
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4.5 MEMORY SPACES Run Time Environm
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Run Time Environment 1. It is possi
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4.8 SOFTWARE STACK Run Time Environ
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FIGURE 4-2: CALL OR RCALL Stack gro
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4.11 FUNCTION CALL CONVENTIONS Run
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Run Time Environment The compiler a
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4.14.2 String Literals as Arguments
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6.1 INTRODUCTION MPLAB ® C COMPILE
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6.3 PMP POINTERS Additional C Point
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6.4 EXTERNAL POINTERS 6.3.3 Define
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ead_external16 Additional C Pointer
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Additional C Pointer Types } else {
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7.5 USING SFRS Device Support Files
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7.6 USING MACROS Device Support Fil
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EXAMPLE 7-2: EEDATA ACCESS VIA PSV
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Interrupts When using the interrupt
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8.4.1 dsPIC30F DSCs (Non-SMPS) Inte
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8.4.3 PIC24F MCUs Interrupt Vectors
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Interrupts TABLE 8-3: INTERRUPT VEC
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Interrupts TABLE 8-4: INTERRUPT VEC
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85 _Interrupt85 _AltInterrupt85 Res
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8.8 ENABLING/DISABLING INTERRUPTS I
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Interrupts 2. Unsafe: read bar inte
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LATGbits.LATG2 = 0; /* No problem l
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Mixing Assembly Language and C Modu
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Mixing Assembly Language and C Modu
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Page 137 and 138: A.5 IDENTIFIERS A.6 CHARACTERS Impl
Page 139 and 140: Implementation-Defined Behavior The
Page 141 and 142: A.15 PREPROCESSING DIRECTIVES Imple
Page 143 and 144: A.17 SIGNALS A.18 STREAMS AND FILES
Page 145 and 146: A.24 GETENV A.25 SYSTEM A.26 STRERR
Page 147 and 148: B.1 INTRODUCTION MPLAB ® C COMPILE
Page 149 and 150: __builtin_btg Built-in Functions De
Page 151 and 152: __builtin_clr_prefetch Argument: xp
Page 153 and 154: __builtin_dmaoffset Built-in Functi
Page 155 and 156: __builtin_fbcl Built-in Functions A
Page 157 and 158: __builtin_modsd Argument: dividend
Page 159 and 160: __builtin_mpy Error Messages An err
Page 161 and 162: __builtin_mulss Built-in Functions
Page 163 and 164: __builtin_psvoffset Built-in Functi
Page 165 and 166: __builtin_subab Built-in Functions
Page 167 and 168: __builtin_tblwth Built-in Functions
Page 169 and 170: C.1 INTRODUCTION C.2 ERRORS MPLAB
Page 171 and 172: Diagnostics ambiguous abbreviation
Page 173 and 174: Diagnostics cast specifies function
Page 175 and 176: F Diagnostics ‘identifier’ fail
Page 177 and 178: Diagnostics initializer for static
Page 179 and 180: Diagnostics invalid use of undefine
Page 181: N Diagnostics negative width in bit
Page 185 and 186: Diagnostics symbol ‘symbol’ not
Page 187 and 188: Diagnostics void expression between
Page 189 and 190: Diagnostics anonymous union declare
Page 191 and 192: Diagnostics comparison between sign
Page 193 and 194: duplicate ‘const’ The ‘const
Page 195 and 196: Diagnostics function might be possi
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Page 199 and 200: Diagnostics library function ‘ide
Page 201 and 202: P Diagnostics parameter has incompl
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Page 205 and 206: Diagnostics too many arguments for
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Page 217 and 218: E.1 INTRODUCTION E.2 HIGHLIGHTS MPL
Page 221 and 222: G.1 PREAMBLE MPLAB ® C COMPILER FO
Page 223 and 224: G.3 VERBATIM COPYING G.4 COPYING IN
Page 225 and 226: GNU Free Documentation License incl
Page 229 and 230: Glossary File Registers On-chip dat
Page 231 and 232: Glossary Machine Language A set of
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Glossary Stack, Software Memory use
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Symbols __builtin_add..............
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-fpack-struct .....................
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-idirafter.........................
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Peephole Optimization..............
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-Wsequence-point...................
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MPLAB C Compiler for PIC24 MCUs and dsPIC DSCs ... - Microchip

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