[英]Issue with compiling Arduino IDE sketch, gets * multiple definition of `__vector_15' * error
[英]Arduino sketch, multiple definition error
我試圖將以前創建的草圖分解為類和草圖,但遇到了一些麻煩。 我正在擴展為正在使用的主板設計的鍵盤類的功能,但是編譯器一直抱怨功能的多種定義。
這是我的草圖,.h和.cpp:
草圖
#include <DigiKeyboard.h>
#include "MacroKeyboard.h"
//constants
#define LED 1
#define SWITCH 0
//configuration
#define PAUSE_ON_ENTER true
const char command[] PROGMEM = "test string";
MacroKeyboard kb(command, SWITCH);
void setup() {
//tie switch to high
pinMode(SWITCH, OUTPUT);
digitalWrite(SWITCH, HIGH);
// set pins to correct uh whatever
pinMode(LED, OUTPUT);
pinMode(SWITCH, INPUT);
}
void loop() {
DigiKeyboard.update();
kb.update();
}
。H:
#ifndef MacroKeyboard_h
#define MacroKeyboard_h
#include "Arduino.h"
#define ON LOW
#define OFF HIGH
#define SCANCODE_DIFF 8
class MacroKeyboard {
const char* command;
int pin;
bool isPressed = false;
public:
MacroKeyboard(const char*, int);
void parseLetter(int);
void update();
};
#endif
.cpp:
#include <DigiKeyboard.h>
#include "MacroKeyboard.h"
MacroKeyboard::MacroKeyboard(const char* macro_position, int pin_number){
command = macro_position;
pin = pin_number;
}
void MacroKeyboard::parseLetter(int letter){
unsigned int scancode = pgm_read_byte_near(ascii_to_scan_code_table + letter - SCANCODE_DIFF);
unsigned int keycode = scancode & ((1 << 7) - 1); // masking off shift bit
unsigned int mods = 0;
unsigned int shift = (scancode & (1 << 7)) >> 7;
mods |= (shift == 1) ? MOD_SHIFT_LEFT : 0;
DigiKeyboard.sendKeyStroke(keycode, mods);
}
void MacroKeyboard::update(){
if(digitalRead(pin) == ON && !isPressed){
isPressed = true;
for (int i = 0; i < strlen(command); i++){
char letter = pgm_read_byte_near(command + i);
parseLetter(letter);
}
}
if (digitalRead(pin) == OFF && isPressed){
isPressed = false; // debounce
}
}
我得到的錯誤是這樣的:
MacroKeyboard\MacroKeyboard.cpp.o: In function `usbFunctionSetup':
C:\Program Files (x86)\Digistump_Arduino\hardware\digistump\avr\libraries\DigisparkKeyboard/DigiKeyboard.h:216: multiple definition of `usbFunctionSetup'
MacroKeyboardTest.cpp.o:C:\Program Files (x86)\Digistump_Arduino\hardware\digistump\avr\libraries\DigisparkKeyboard/DigiKeyboard.h:216: first defined here
MacroKeyboard\MacroKeyboard.cpp.o: In function `MacroKeyboard::MacroKeyboard(char const*, int)':
C:\Program Files (x86)\Digistump_Arduino\hardware\digistump\avr\libraries\DigisparkKeyboard/DigiKeyboard.h:170: multiple definition of `DigiKeyboard'
MacroKeyboardTest.cpp.o:C:\Program Files (x86)\Digistump_Arduino\hardware\digistump\avr\libraries\DigisparkKeyboard/DigiKeyboard.h:199: first defined here
MacroKeyboard\MacroKeyboard.cpp.o:(.progmem.data.usbDescriptorHidReport+0x0): multiple definition of `usbDescriptorHidReport'
MacroKeyboardTest.cpp.o:(.progmem.data.usbDescriptorHidReport+0x0): first defined here
collect2: error: ld returned 1 exit status
Error compiling.
我究竟做錯了什么?
您使用的庫以一種奇怪的方式編寫。 在文件DigiKeyboard.h
,有這樣的定義((注釋我的)):
// Declares a global variable.
// If you include this file in more than one cpp file it will cause linker error.
DigiKeyboardDevice DigiKeyboard = DigiKeyboardDevice();
// Defines a non-inline function
// Again, multiple definitions error if the file is included in several source files.
uchar usbFunctionSetup(uchar data[8]) {
// code
}
因此,您必須通過將此.h文件僅包含到一個.cpp文件中來使用它。
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