i have 2 questions that i'm currently investigating.
i'm trying to investigate how to use a DP8428 DRAM with a 128k x 8 DRAM chips.
i also want to know how much overhead is is lost due to necessary refreshing
how do i interface X25020 to the 68HC11 SPI embedded function. i also need to write a device driver in C that provides a way to read any particular addressed byte. that is, calling the device driver w/ an argument address will retrun the char stored at that address in the X25020.
i know a little bit of C but haven't programmed in a while so any input, advice, direction, sample etc will be greatly appreciated.