Honored ContributorI want to use this example with DE2 board but DE2 board did not have DDR SDRAM
and this design is using DDR SDRAM can anybody guide me how i can get rid of this DDR SDRAM and use instead SDRAM or SRAM present on DE2 board !! here is the link to design example from altera altera.com/support/examples/nios2/exm-checksum-acc.html waiting for some kind response !!
Honored ContributorRip out the memory controller and add the one you want in. If you use a non-bursting memory then you might as well disable the burst options in the read master because you won't need them. This set of components doesn't care what memory you hook up to it (that's the point in using standard interfaces like Avalon MM and ST) so it should port fairly seamlessly.
Honored ContributorThis example has some questionable content.
Line 22: isr_flag better be declared volatile or with optimization on the code should fail. Line 135:buffer = (0xFF & rand()) % 256; // random values between 0 and 255Typically neither '& 0xff' nor '% 256' will remove the warning (about assigning to a narrower integral type), an explict '(unsigned char)' cast will, but the compiler is likely to generate an (or maybe another) unnecessary mask with 255.
Although I usually compile with '-Wall -Wshadow -Wcast-qual -Wmissing-prototypes -Wpointer-arith -Wwrite-strings -Werror' I disable all the warnings about integer convertions. I really don't like casts!
