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HTTP server + MMC + FAT

 
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joven



Joined: 30 Jan 2007
Posts: 56
Location: Viana do Castelo - Portugal

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HTTP server + MMC + FAT
PostPosted: Sun Feb 17, 2008 12:27 pm     Reply with quote
Hi

I'm trying put ethernet and MMC with fat32 work together.

I'm using the example 15 from tcp/ip stack for show the text inside of txt file.

When compile give-me many errors on the driver "mmcsd.c".
The error is "*** Error 12 "D:\projpic\dhcpmonitor\mmcsd.c" Line 354(25,34): Undefined identifier mmcsd_spi"

Code:

//////////////////////////////////////////////////////////////////////////////
//
// ex15.c - Example 15 from the Embedded Internet/Embedded Ethernet tutorial
//
// A webserver that accepts GET and POST commands.
//
// NOTE: Change the code in IPAddrInit() to your desired IP address, which
//       is based on your network.
//
//////////////////////////////////////////////////////////////////////////////

#define STACK_USE_ICMP  1
#define STACK_USE_ARP   1
#define STACK_USE_TCP   1
#define STACK_USE_HTTP  1
#define STACK_USE_DHCP  1
#include "ccstcpip.h"
#include <stdlib.h> // for atoi32


#include "cmd_mmc.c"
char  HTML_inicial_PAGE[100]="tudo bem?";
//here is this examples / page
const char  HTML_INDEX_PAGE[]="
<HTML><BODY BGCOLOR=#FFFFFF TEXT=#000000>
<IMG SRC=\"http://www.ccsinfo.com/pix/CCSlogotiny.gif\"><P>
<H1>CCS HTTP/CGI EXAMPLE</H1>
<FORM METHOD=GET>
<P>LCD: <INPUT TYPE=\"text\" NAME=\"lcd\" size=20 maxlength=16>
<BR>LED1:<INPUT type=\"radio\" name=\"led1\" value=1>ON &nbsp; &nbsp; &nbsp;
<INPUT type=\"radio\" name=\"led1\" value=0 checked>OFF
<BR>LED2:<INPUT type=\"radio\" name=\"led2\" value=1>ON &nbsp; &nbsp; &nbsp;
<INPUT type=\"radio\" name=\"led2\" value=0 checked>OFF
<BR><INPUT TYPE=\"submit\"></FORM>
<P><A HREF=\"/analog\">Analog Readings</A>
</BODY></HTML>
";

const char  HTML_ANALOG_PAGE[]="
<HTML><BODY BGCOLOR=#FFFFFF TEXT=#000000>
<IMG SRC=\"http://www.ccsinfo.com/pix/CCSlogotiny.gif\">
<H1>PICNET ADC READINGS</H1>
<P>%0
<BR>%1
<P><A HREF=\"/\">Change LCD/LEDs</A>
</BODY></HTML>
";

//this is a callback function to the HTTP stack.  see http.c
//this demo provides to web "pages", an index (/) and an about page (/about)
int32 http_get_page(char *file_str) {
   int32 file_loc=0;
   static char index[]="/";
   static char about[]="/analog";

   printf("\r\nRequest %s ",file_str);

   if (stricmp(file_str,index)==0)
      file_loc=label_address(HTML_INDEX_PAGE);

   else if (stricmp(file_str,about)==0)
      file_loc=label_address(HTML_ANALOG_PAGE);

   if (file_loc)
      printf("(FILE=%LU)",file_loc);
   else
      printf("(File Not Found)");

   return(file_loc);
}

//this is a callback function to the HTTP stack. see http.c
// this demo provides handling for two formatting chars, %0 and %1.
//  %0 is ADC for channel 0, %1 is ADC for channel 1.
int8 http_format_char(int32 file, char id, char *str, int8 max_ret) {
   char new_str[20];
   int8 len=0;
   int8 i;

   *str=0;

   switch(id) {
      case '0':
         set_adc_channel(0);
         delay_us(100);
         i=read_adc();
         strcpy(new_str,HTML_inicial_PAGE);
         //sprintf(new_str,"<B>AN1 = </B>0x%X",i);
         len=strlen(new_str);
         break;

      case '1':
        #if STACK_USE_CCS_PICNET
         set_adc_channel(1);
         delay_us(100);
         i=read_adc();
         sprintf(new_str,"<B>AN1 = </B>0x%X",i);
         len=strlen(new_str);
        #else
         len=0;
        #endif
         break;

   }

   if (len) {
      if (len>max_ret) {len=max_ret;}
      memcpy(str,new_str,len);
   }

   return(len);
}

//this is a callback function to the HTTP stack. see http.c
//in this example it verifies that "pwd" is "master", if it is
//then it sets led1 and led2 ("led1" and "led2") based on their value
//and changes the lcd screen ("lcd").
void http_exec_cgi(int32 file, char *key, char *val) {
   static char led1_key[]="led1";
   static char led2_key[]="led2";
   static char lcd_key[]="lcd";
   int8 v;

   printf("\r\nCGI FILE=%LD KEY=%S VAL=%S", file, key, val);

   if (stricmp(key,led1_key)==0) {
      v=atoi(val);
      if (v) {output_low(USER_LED1);}
      else {output_high(USER_LED1);}
   }

   if (stricmp(key,led2_key)==0) {
      v=atoi(val);
      if (v) {output_low(USER_LED2);}
      else {output_high(USER_LED2);}
   }


}

void main(void) {
   
   int8 i;
   char nome[20];
   FILE stream;
   
   set_tris_a(0b11111100);
   set_tris_f(0b11111001);
   MACAddrInit();
   
   set_tris_c(0b11010011);
   output_low(PIN_F1);
   output_low(PIN_F2);
 
   i = fat_init();
   if (i)
      output_high(PIN_F1);
   else
      output_high(PIN_F2);
   
   delay_ms(1000);
   //display
   output_low(PIN_F1);
   output_low(PIN_F2);
   delay_ms(500);
   
   if(fatreopen("/ficheiro.txt", "r", &stream) != GOODEC)
      output_high(PIN_F1);
   else
      output_high(PIN_F2);
     
   delay_ms(1000);
   
   fatreopen(nome, "r", &stream);
   
   fatgets(HTML_inicial_PAGE, 99, &stream);
   
   fatclose(&stream);
   
   
   
   
   StackInit();

   while(TRUE) {
      StackTask();
     
   }
}


I have put work the http and mmc separated.

Thanks
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Sun Feb 17, 2008 12:44 pm     Reply with quote
Quote:
Undefined identifier mmcsd_spi

"mmcsd_spi" is defined as the stream in the #use spi() statement.
Look on line 126 of the mmcsd.c file, as shown in bold below:
Quote:

#use spi(MASTER, DI=MMCSD_PIN_SDI, DO=MMCSD_PIN_SDO,
CLK=MMCSD_PIN_SCL, BITS=8, MSB_FIRST, IDLE=1, stream=mmcsd_spi)
joven



Joined: 30 Jan 2007
Posts: 56
Location: Viana do Castelo - Portugal

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PostPosted: Mon Feb 18, 2008 5:34 am     Reply with quote
why give-me error? I only have the mmc connected to hardware spi.

I'm using a 18F67J60, have the ethernet encoder inside.

If i remove the "stream=mmcsd_spi" compile, but do not work.

The idea i have of the stream is when i have more devices easily can identify and send our receive data.

thanks
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