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Altera_Forum's avatar
Altera_Forum
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14 years ago

access to every address of SDRAM

I have a problem with reading and writing data on SDRAM, I need to access every address of SDRAM, this is my C code written for Nios: # include <stdio.h> # include <io.h> # define BASE_SDR...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Hi,

the byte or word access has nothing to do with the sopc builder settings of the SDRAM. This is a software issue. You can access the RAM bytewise using this :

volatile unsigned char *pbRAM = (unsigned char *) (0x80000000 | SDRAM_BASE);

With pbRAM[6000] you can access byte 6000 in the SDRAM.

Regards,

HJS