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標題: 關於電子羅盤 HMC5843 [打印本頁]

作者: wangamy3 時間: 2013-7-26 15:16
標題: 關於電子羅盤 HMC5843
想請問一下
我在網路上下載了HMC library
放入arduino的library後
會出現問題顯示：In file included from HMC_test.pde:1:
C:\Program Files (x86)\Arduino\libraries\HMC/HMC.h:33:22: error: WProgram.h: No such file or directory
而且搜尋時大部分的資料都是HMC5883
想請問這兩者差在哪???

這是HMC5843下載檔案中的CPP程式
/*
* HMC.cpp - Interface a Honeywell HMC5843 magnetometer to an AVR via i2c
* Version 0.1 - http://eclecti.cc
* Copyright (c) 2009 Nirav Patel
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Code based in part on information from the following:
* http://www.sparkfun.com/datasheets/Sensors/Magneto/HMC5843-v11.c
* http://www.atmel.com/dyn/resources/prod_documents/doc2545.pdf
*/

#include "HMC.h"

/* PUBLIC METHODS */

HMC5843::HMC5843()
{
}

// note that you need to wait at least 5ms after power on to initialize
void HMC5843::init()
{
  PORTC = 0b00110000; // Use the internal pull up resistors

  // Choose 100KHz for the bus.  Formula from 21.5.2 in ATmega168 datasheet.
  TWSR &= ~((1<<TWPS1)&(1<<TWPS0));

TWBR = (unsigned char)(F_CPU/200000l-8);

// Put the HMC5843 into continuous mode

sendStart();

sendByte(0x3C);

sendByte(0x02);

sendByte(0x00);

sendStop();

// note that you need to wait 100ms after this before first calling recieve
}

// This can be called at 100ms intervals to get new data
void HMC5843::getValues(int *x, int *y, int *z)
{
  unsigned char xin, yin, zin;
  // start the reading
  sendStart();
  sendByte(0x3D);
  // read out the 3 values, 2 bytes each.  lsb first, then msb.
  xin = receiveByte();
  *x = (xin<<8)|receiveByte();
  yin = receiveByte();
  *y = (yin<<8)|receiveByte();
  zin = receiveByte();
  *z = (zin<<8)|receiveByte();
  // wrap back around for the next set of reads and close
  sendByte(0x3D);
  sendStop();
}

/* PRIVATE METHODS */

// start i2c as the master
void HMC5843::sendStart(void)
{
  TWCR = (1<<TWINT)|(1<<TWSTA)|(1<<TWEN);
}

// close i2c
void HMC5843::sendStop(void)
{
  waitForReady();
  TWCR = (1<<TWINT)|(1<<TWEN)|(1<<TWSTO);
}

// send a byte when the channel is ready
void HMC5843::sendByte(unsigned char data)
{
  waitForReady();

TWDR = data;

TWCR = (1<<TWINT)|(1<<TWEN);
}

// ask for a byte, wait for it arrive, and return it
unsigned char HMC5843::receiveByte(void)
{
  waitForReady();
  TWCR = ((TWCR&0x0F)|(1<<TWINT)|(1<<TWEA));

waitForReady();

return(TWDR);
}

// get status register. the bits 0 and 1 are zeroed in init. see datasheet
unsigned char HMC5843::readStatus()
{
  waitForReady();
  return(TWSR);
}

// wait for TWINT to be set before touching the other registers.
void HMC5843::waitForReady(void)
{
  // timeout after some time to avoid locking up if something goes wrong
  int timeout = 200;
  while ((!(TWCR & (1<<TWINT))) && (timeout--));
}

// Set the default object
HMC5843 HMC = HMC5843();

然後這是他的副程式
/*
* HMC.cpp - Interface a Honeywell HMC5843 magnetometer to an AVR via i2c
* Version 0.1 - http://eclecti.cc
* Copyright (c) 2009 Nirav Patel
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Code based in part on information from the following:
* http://www.sparkfun.com/datasheets/Sensors/Magneto/HMC5843-v11.c
* http://www.atmel.com/dyn/resources/prod_documents/doc2545.pdf
*/
#include <util/twi.h>
#include "WProgram.h"

#ifndef HMC_h
#define HMC_h

class HMC5843
{
  public:
HMC5843();
void init();
void getValues(int *x, int *y, int *z);
  private:
void sendStart(void);
void sendStop(void);
void sendByte(unsigned char data);
unsigned char receiveByte(void);
unsigned char readStatus(void);
void waitForReady(void);
};

extern HMC5843 HMC;

#endif // HMC_h

作者: vegewell 時間: 2013-7-27 02:22
回復 1# wangamy3

使用非arduinoIDE 1.0版本函式庫注意事項
http://www.aroboto.com/blog/%E4%BD%BF%E7%94%A8%E9%9D%9Earduinoide-1-0%E7%89%88%E6%9C%AC%E5%87%BD%E5%BC%8F%E5%BA%AB-%E6%B3%A8%E6%84%8F%E4%BA%8B%E9%A0%85
-------

由於arduino IDE 在1.0版本的更新有改動到不少的內部結構。

http://arduino.cc/en/Main/ReleaseNotes

相關資訊可以參考官方資料。

目前有遇到的情況有以下:

1. WProgram.h file 更名為 Arduino.h file–>函式庫裡有呼叫到的，要寄得修改回Arduino.h

或者改以下列程式碼取代

#if defined(ARDUINO) && ARDUINO >= 100 #include "Arduino.h" #else #include "WProgram.h" #endif

倘若沒有修改，通常會產生這樣的錯誤訊息 error: WProgram.h: No such file or directory。

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