FPGA Central

Specification
EDK version:8.2i
FPGA Board: Virtex II Pro
Compiler : mb-g++

I'm tring to create a file stream using ifstream instr("ba1.bits")
or ifstream instr("a:\\ba1.bits") to create a file stream from
CF card.

In addition I've added #include <stdio.h> which is necessary to
ensure that microblaze compiler recognizes the the c++ sections of
code.

I've amended the file ....\EDK\sw\lib\sw_services\xilfatfs_v1_00_a
\src\include\sysace_stdio.h uncommenting the following lines

#define SYSACE_FILE FILE
// typedef void FILE;

#define fopen sysace_fopen
#define fclose sysace_fclose
#define fread sysace_fread
#define fwrite sysace_fwrite

File cannot be read...

Alternatively I tried using sysace_fopen directly -> char array ->
streambuf


streambuf * pbuf;

void myrun(void * mybuf) {
sysace_fread( (void *) mybuf, 1, 1, outfile);
// pbuf->sputn (charbuffin,sizeof(charbuffin)-1);
}


Int main (){
void *mainbuf;

if ((outfile = sysace_fopen("file.txt", "r")) == NULL)
{
xil_printf("Couldn't open the file\r\n");
}
else{

for (int i=0;i<4;i++){
myrun(mainbuf);
pbuf->sputc( (char *) mainbuf);
usleep(1000);
}
return 0;
}

System hangs at this point.........

Please do let me know how file from CF card ->input stream?

Priyantha

Hi Priyantha -

Try replacing "file.txt" with "a:\\file.txt". To the standalone OS, the
CF drive looks like the "a:\" drive.

Thomas Werne

Bathala wrote:
> Specification
> EDK version:8.2i
> FPGA Board: Virtex II Pro
> Compiler : mb-g++
>
> I'm tring to create a file stream using ifstream instr("ba1.bits")
> or ifstream instr("a:\\ba1.bits") to create a file stream from
> CF card.
>
> In addition I've added #include <stdio.h> which is necessary to
> ensure that microblaze compiler recognizes the the c++ sections of
> code.
>
> I've amended the file ....\EDK\sw\lib\sw_services\xilfatfs_v1_00_a
> \src\include\sysace_stdio.h uncommenting the following lines
>
> #define SYSACE_FILE FILE
> // typedef void FILE;
>
> #define fopen sysace_fopen
> #define fclose sysace_fclose
> #define fread sysace_fread
> #define fwrite sysace_fwrite
>
> File cannot be read...
>
> Alternatively I tried using sysace_fopen directly -> char array ->
> streambuf
>
>
> streambuf * pbuf;
>
> void myrun(void * mybuf) {
> sysace_fread( (void *) mybuf, 1, 1, outfile);
> // pbuf->sputn (charbuffin,sizeof(charbuffin)-1);
> }
>
>
> Int main (){
> void *mainbuf;
>
> if ((outfile = sysace_fopen("file.txt", "r")) == NULL)
> {
> xil_printf("Couldn't open the file\r\n");
> }
> else{
>
> for (int i=0;i<4;i++){
> myrun(mainbuf);
> pbuf->sputc( (char *) mainbuf);
> usleep(1000);
> }
> return 0;
> }
>
> System hangs at this point.........
>
> Please do let me know how file from CF card ->input stream?
>
> Priyantha
>
>


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