How to store a BMP file to nios board from a PC

I'm assuming K is the size of the file you want to read so you could try:

fread(p, 1, K, fp);

which reads K "items" of size 1 byte.

fread returns the number of items read so you can test whether it worked like this:

numRead =fread(p,1,K,fp);

if (numRead != K)

printf("read only %d of %d\n", numRead, K);

The reason you cannot use fgets is that that function stops when it encounters a newline in the data.

By the way, you can look at the Windows structures BITMAPFILEHEADER and BITMAPINFO to find a way of properly parsing out a bitmap.

Andrew