code c++

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and min

the role of the algorithm to read the image load in memore of fpga ?

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Sorry, I didn't understand this sentence.

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and how I run my algorithm through command prompt?

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Cris, described in his last post how to do it. If you want to use the niosii console as command prompt you don't need my_jtag_atlantic.lib.

You only need my_jtag_atlantic.lib if you want to transfer data from your pc to your embedded system via jtag_uart. For example if you want to transfer the content of your script.txt.

On PC-side I would write code which set up the connection with your embedded system via my_jtag_atlantic.lib. After establishing the connection (see the example files for that), I would open script.txt with fopen and read the content using fread () or similar function. With my_jtag_atlantic.lib you can then transfer the content to your embedded system.

On your embedded system-side you can now use read/write/printf for receiving/transmitting/transmitting data.

Example (quick and dirty!):

# include <stdio.h># include <stddef.h># include <unistd.h># include <fcntl.h># include <stdlib.h># include <system.h># include <string.h># include <io.h># include "jtag_comm.h"# include "sys/alt_dev.h"# include "priv/alt_file.h"# include "alt_types.h" # include "altera_avalon_jtag_uart.h"
# define READ_BUFFER_SIZE    64# define WRITE_BUFFER_SIZE   64
# define TIMEOUT             1000# define SEND_TIMEOUT        1000
# define SUCCESS             0# define ERROR               -1# define ERROR_TIMEOUT       -2
// locals
UChar8  read_buffer;
Int32   read_cnt;
Int32 JTAG_COMM_Init (void)
{
    UInt32 ulCnt;
    Int32 lResult;
    Char8 sBuf; 
    Char8 sFlush; 
    Int32 dummy;
    Char8 *pch=NULL;
    
    memset(sFlush,0,2048);
    
    // forgive me for this hack but I couldn't figure out a more eligant way to do this
    alt_fd_list.fd_flags |= O_NONBLOCK;
 
    // flush any stale STDIN data
    while((dummy=getchar()) != -1);
    
   return SUCCESS;
}
Int32 JTAG_COMM_Send(Int32 lValue)
{ 
  printf("%d\n",lValue);
  return SUCCESS; 
}
Int32 JTAG_COMM_Rcv(Char8 *pMsg)
{ 
   Char8 sBuf;
   Int32 lResult=0;
   
   memset(sBuf, 0, READ_BUFFER_SIZE);
   lResult = read(STDIN_FILENO, sBuf, READ_BUFFER_SIZE);
   if (lResult>0)
   {
      memcpy(pMsg,sBuf,lResult);
   }
  return lResult;
}

note: You can not do both. Use the jtag_uart for Command Prompt and for data transfers as described above using my_jtag_atlantic. If you want to do that you need 2 jtag_uarts. One for command prompt and one for transferring data.

Regards