sdram write fails for last 1K locations

Hi again,

found what I meant, I guess:

http://www.altera.com/literature/lit-nio2.jsp (http://www.altera.com/literature/lit-nio2.jsp)

-> Nios II Software Developer's Handbook

In chapter 4 'Developing Programs using the HAL' under 'Memory Usage' -> 'Placement of Heap and Stack':

'By default, the heap and stack are placed in the same memory partition

as the .rwdata section. the stack grows downwards (toward lower

addresses) from the end of the section. The heap grows upwards from the

last used memory within the .rwdata section. You can control the

placement of the heap and stack as a system library property in the

Nios II IDE.' (right now page 3-38)

So if I got it right, heap and stack are not placed at the end of memory, just stack grows downwards from end of .rwdata section (check also Figure 4-3 'Sample HAL Link Map' on page 4-34).

Then maybe I've been wrong, sorry. Still I didn't get it in total.