Image Filtering problem

Altera_Forum · ‎03-13-2012

Hi,

I have a problem opening image from FLASH memory for writing. It opens it for reading only. There is some program code:

fp1 = fopen("/mnt/rozips/circuit_ch.bmp", "w");

if(fp1 == NULL){

printf("Can't open file: circuit_ch.bmp\n");

return 1;

}

fwrite((void*) buff2, 280*272, 1, fp1);

fclose(fp1);

It always printf a message that cant open a file.

I have programed my flash memory with ziped(without compression) images.

Can anyone help me?

P.S I run the program in Eclipse

Kind regards

Kycas

Altera_Forum · ‎03-14-2012

If you are using the Zip filesystem provided with the Nios environment, then you can't write anything. The software module's full name is "Read-only ZIP filesystem"

Altera_Forum · ‎03-14-2012

Thanks for Your reply.

But how can I write an image into flash memory?

Altera_Forum · ‎03-15-2012

What do you want to do with the image contents once they are flashed? One way could just be to define a fixed area in the flash and just write the binary file contents there (maybe with an indication of the data size somewhere, and a magic number to signal the contents are valid).