ダイナミックC - エラーwriteUserBlockArrayを使用して（）

Question

編集 - ここではいくつかのリソースは、コメントに反応している：

costate：http://bamafolks.com/randy/students/embedded/dynamicC_mtask.html

writeUserBlockArray：http://ftp1.digi.com/support/documentation/html/DynCFunctionReference/12fun595.htm#1259708

私は取得していますエラーは `-1 ：無効なアドレスまたは範囲 '。

#define MAX_SAMPLES 20 
#define REPORT_AFTER 3 

main() 
{ 
    int i; 
    int report; 

    int write_result; 
    int read_result; 

    struct temp_struct { 
     float celcius; 
     float fahrenheit; 
    } temperature_data; 

    struct temp_struct save_data[MAX_SAMPLES]; 
    struct temp_struct read_data[MAX_SAMPLES]; 
    unsigned int save_lens[MAX_SAMPLES]; 

    float *pTempC, *pTempF; 

    pTempC = &temperature_data.celcius; 
    pTempF = &temperature_data.fahrenheit; 

    i = 0; 
    report = 0; 

    brdInit(); 

    while(1) 
    { 
     costate 
     { 
      sampleTemp(&temperature_data.celcius, &temperature_data.fahrenheit); 

      save_data[i].celcius = *pTempC; 
      save_data[i].fahrenheit = *pTempF; 
      save_lens[i] = sizeof(temperature_data); 

      if(i==MAX_SAMPLES) i=0; else i++; 
      report=1; // Sample has been taken, a report can be produced 
      waitfor(DelaySec(SAMPLE_DELAY_SECS)); 
     } 

     // If REPORT_AFTER set to 3, this executed every third sample taken. 
     // "report" the last set of data saved by printing out 
     if(report && i%REPORT_AFTER==0 && i!=0) 
     { 
      write_result = writeUserBlockArray(i-REPORT_AFTER, save_data, save_lens, REPORT_AFTER); 
      // Read data to check it was saved correctly 
      read_result = readUserBlockArray(read_data, save_lens, REPORT_AFTER, i-REPORT_AFTER); 

      // Print out all data saved here. 

      report = 0; // Do not report again until another sample has been taken. 
      break; // Stops after first report. Can be removed later 
     } // end if 
    } // end while 
} // end main 

float sampleTemp(float *tempC, float *tempF) 
{ 
    auto float Tk,  //calculated temperature kelvins 
        Draw;  //raw data value 
    auto int i; 

    printf("Getting temperature\n\n"); 

    Draw = anaIn(7, SINGLE, GAIN_1); 

    //calculate temperature in kelvins 
    Tk = (Bt*Tkstd)/(Tkstd * (log(fabs((-Draw*Rs)/(Rtstd*(Draw-(Dmax*Gain)))))) + Bt); 

    *tempC = Tk - 273.15;    //convert to celcius 
    *tempF = 1.8*(Tk - 255.37);  //calculate fahrenheit 

    return 0; 
} 

これはすべて関連コードです。私は一貫して無効なアドレスまたは範囲を象徴するwriteUserBlockArray()メソッドから返された-1を返しています。

私はそれがダイナミック-Cであるという事実はあまり違いはなく、問題のある方法の概要は、これだとは思わない：

writeUserBlockArray(addrOffset, arraySources, arraySourceSizes, numSources); 

私はCに新しいですし、私はと間違って何かをやっていると思います私は配列にデータを保存していますか？

ありがとうございます。

Answer 1

問題は、メモリにデータの配列を書き込もうとしていたことでした。 writeUserBlockArray（...）メソッドを使用する実際の方法は、ポインタの配列を指定することです。

新しい、作業、コード：

#define SAMPLE_DELAY_SECS 5 
#define MAX_SAMPLES 20 
#define REPORT_AFTER 3 

main() 
{ 
    int temp; 

    int i; // Iteration # 
    int report; // Whether to produce a report or not 

    int write_result; // The numerical result of the write-to-memory operation 
    int read_result; // The numerical result of the read-from-memory operation 

    // Define a structure which can be used to hold both temperature measurements 
    struct temp_struct { 
     float celcius; 
     float fahrenheit; 
    } temperature_data; 

    void *save_pointers[MAX_SAMPLES]; // An array of pointers pointing to the data to be saved in memory 
    struct temp_struct save_data[MAX_SAMPLES]; // Array of actual data which can be loaded with the read operation 
    unsigned int save_lens[MAX_SAMPLES]; // An array of the size (in bytes) of each element in the save_data array 

    i = 0; 
    report = 0; 

    brdInit(); // Needs to be called before any operations are performed with the hardware. 

    while(1) 
    { 
     /* 
     * Costate is a way of multitasking in Dynamic-C. By using a costate block in 
     * conjunction with the waitfor keyword, the block can be paused until it 
     * has finished waiting. 
     * 
     * Further info: 
     * http://bamafolks.com/randy/students/embedded/dynamicC_mtask.html 
     */ 
     costate 
     { 
     // Method taken from: http://read.pudn.com/downloads107/sourcecode/embed/441399/Samples/RCM3700/Tcpip/RabbitWeb/TEMPERATURE.C__.htm 
     sampleTemp(&temperature_data.celcius, &temperature_data.fahrenheit); 

     save_pointers[i] = &temperature_data; 
     save_lens[i] = sizeof(temperature_data); 

     printf("save_data[%d].celcius is %f\n", i, save_data[i].celcius); 
     printf("save_data[%d].fahrenheit is %f\n\n", i, save_data[i].fahrenheit); 

     if(i==MAX_SAMPLES) i = 0; else i++; 

     report=1; // Sample has been taken, a report can be produced 
     waitfor(DelaySec(SAMPLE_DELAY_SECS)); 
     } 

     /* 
     * This IF block is used to produce a report every so often, either by 
     * emailing out some data, updating the web interface or simply printing 
     * it to the screen. 
     * 
     * A report will be produced when: 
     * a) a new sample has been taken (report) 
     * b) the desired number of samples has been reached (i%REPORT_AFTER==0) 
     * c) it is not the very first sample to be taken (i!=0) 
     */ 
     if(report && i%REPORT_AFTER==0 && i!=0) // For every third sample 
     { 
     /* 
      * writeUserBlockArray(address_offset (unsigned int), 
      *    sources (array), 
      *    source_sizes (array), 
      *    num_sources (int)); 
      * Documentation: 
      * http://ftp1.digi.com/support/documentation/html/DynCFunctionReference/12fun595.htm#1259708 
      */ 
     write_result = writeUserBlockArray(i-REPORT_AFTER, save_pointers, save_lens, REPORT_AFTER); 

     /* 
      * readUserBlockArray(destinations (array), 
      *   destination_sizes (array), 
      *   num_sources (int), 
      *   address_offset (unsigned int)); 
      * Documentation: 
      * http://ftp1.digi.com/support/documentation/html/DynCFunctionReference/12fun441.htm#1259907 
      */ 
     read_result = readUserBlockArray(save_data, save_lens, REPORT_AFTER, i-REPORT_AFTER); 

     printf("Write Result: %d\nRead Result: %d\n\n", write_result, read_result); 

     printf("Most recent data...\n"); 
     for(temp = 0; temp < REPORT_AFTER; temp++) 
     { 
     printf("save_data[%d].C: %f\n", temp, save_data[temp].celcius); 
      printf("save_data[%d].F: %f\n", temp, save_data[temp].fahrenheit); 
     } 

     report = 0; // Do not report again until another sample has been taken. 
     }// End if 
    }// End while 
}// End main