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Null pointer without SDRAM

Question asked by heinz on Nov 17, 2009
Latest reply on Nov 18, 2009 by heinz

Hello,

 

when using the Blackfin with SDRAM, a pointer to address 0 automatically reads 0, which is very practical for null pointer operation. But if no SDRAM is connected, this function is lost. Is there any (tricky) facilitiy to make the bus interface return 0 when a read access is made to the SDRAM address range, but no SDRAM is present?

 

Thank you in advance for an answer

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