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hi, I was using a pointer to access the external memory.In the large memory model with the rts55x.lib,I can only access 0x40000 to 0x7fffff.When I was trying to access 0x800000,the pointer turned to point to 0x000000.Can't the external /CE2 be accessed?Has anyone encountered this problem?thanks _________________________________________________________________ MSN Explorer: http://explorer.msn.com/lccn |
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about 5509: the large memory model
Started by ●December 30, 2003
Reply by ●December 30, 20032003-12-30
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To access memory as DATA in the /CE2 memory space, you R/W locations starting at 0x600000. To access memory as PROGRAM in the /CE2 memory space you access 0xC00000. I might be a little off on the address, but I do know to access the memory as program or data, they are at different locations. At 06:11 PM 12/30/2003 +0800, you wrote: >hi, >I was using a pointer to access the external memory.In the large memory >model with the rts55x.lib,I can only access 0x40000 to 0x7fffff.When I was >trying to access 0x800000,the pointer turned to point to 0x000000.Can't the >external /CE2 be accessed?Has anyone encountered this problem?thanks > >_________________________________________________________________ >MSN Explorer: http://explorer.msn.com/lccn > >_____________________________________ >Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. > >_____________________________________ >About this discussion group: > >To Join: Send an email to > >To Post: Send an email to > >To Leave: Send an email to > >Archives: http://www.yahoogroups.com/group/c55x > >Other Groups: http://www.dsprelated.com > > |
