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There are absolute memory macros to access memory addresses in 8051, do we have any such to access externally connected flash through 8051?
I tried using C pointers, it does not seem to be reading the address in flash, How do we read & write from a memory location? Please help.
Ya, very same flash , and talking about address locations and those operations in flash,
serial and parallel, one is an I/O device, the other is memory.
If you want to make orange marmelade, do you use apples?
Actually, if I recall correctly, there is (I do not know where, it is not something I would usee) a means of using a mutilated data banking routine that will make serial DATA memory APPEAR as if it was parallel. This, of course will make your program slow down to a crawl, but if you can live eith that, fine. Now, if you have a gaze at the above links, you will realize that, unless you have the CODE memory split in read only and read/write there will be no way of doing 'serial CODE memory' That solution would be so totally silly that I am certain some 'inventor' has something "tested" that will do just that.
As a final note: why are you fooling around with this? you can get large PARALLEL Flash for pennies e.g. 2Mbyte for #2.83 in reasonable quantities.
Erik
Sir, " mutilated data banking routine that will make serial DATA memory APPEAR as if it was parallel. "
" CODE memory split in read only and read/write "
Sir, wonder what this is, all we are doing is interfacing flash to 8051, this being serial flash, commands, addresses and data is sent via Serial In pin of flash. I did not use any banking routine or whatsoever,
Have been trying to interface 8051 with serial flash and supposed to do just that That is, read & write Flash to and from 8051, not using parallel flash ,