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Altera_Forum's avatar
Altera_Forum
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16 years ago

How can I allocate a variable to a specific section?

I want a variable to be allocated in the on-chip RAM. I have all sections (.text, .rodata, .rwdata, .heap, and .stack) in DDR2_SDRAM in the auto-generated linker script. I define a global varia...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Could you try and put the reset and exceptions vectors to the SDRAM and see if it still hangs? This could help us determine if the problem comes from here or not.

Even if the variable is away from the vectors list, a software bug (such as a negative offset) could overwrite something important.

I have another question. In your line
alt_read_flash( flash, offset, (void*) ( &rawVideo ), size);
what is the value of "size"? If its greater than 4, you overwrite unnallocated memory space.