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Altera_Forum's avatar
Altera_Forum
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15 years ago

URGENT: IOWR problem

hello, i have a problem writing data into sdram on de2 board. when i generate 10 numbers (0-9) and write into sdram, it works fine. if i generate 100 numbers (0-99), it has a problem. here is my code...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

As Daixiwen said, there's normally no reason to use IOWR/IORD to access SDRAM. Anyway, if you really want to use IOWR you must be sure you are writing to a free ram area; you can do something like this: 

int sdram_array;
for(x = 0;x < 100; x++){
   IOWR(SDRAM_BASE, &sdram_array, x);
   /* this is equivalent to   sdram_array = x  */
   }

Cris