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Altera_Forum
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15 years ago

Problems with 16-bit DDR2-SDRAM connected to Nios

Hi, I am trying to implement a nios system(cyclone III) with 16-bit DDR2 SDRAM and 16-bit Flash device. While try to erase the flash device using the routine listed below unsigned in...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

hmmm.... the multiply SHOULD be done (in C) as if the two variables are 'int'.

So using an extra variable shouldn't matter.

Something very strange must be going on with the generated code.

I'd also verify what happens if you pass a length of zero - it is possible that causes a single flash sector be erased!

I am presuming that the 'noofblockstoeras e*erasesize' is a typo! (no space).

I also don't quite understand your comment about 'explicitly declaring variables'.