hello ......... can some buddy explain me the programming to access the sd ram throgh
As SDRAM is dynamic, and the bogstandard 8051 doesn't support dynamic RAM (I don't know if any variants do), you need extra hardware. Several controller designs are available on the web, like this:
Paul Burke
Finding 5V SDRAM is probably even harder :) There were old designs around that did DRAM in SW, so with faster
80C51 variants, and faster SDRAM that could also be an option. Usually the bandwidths are low, bordering on the slowest the device can tolerate. For faster bandwidths, the CPLD will be needed.- something like an Atmel ATF1502BE/1504BE, or a Xilinx Coolrunner
-jg
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