4/16/2021 0 Comments 8085 Microprocessor Mini Projects
It is something with your adress decoding that to me looks very wrong.For a better experience, please enable JavaScript in your browser before proceeding.
![]() 8085 Microprocessor Mini Projects How To Distribuite TheI dont know how to distribuite the memory correctly and how to use those parts. In an expanded system you will need a 16-bit address bus and an 8-bit data bus. ![]() You will also need address decoders to select your RAM, ROM and devices. I found CD54HCT573 latch, KM62256C for sram 32kB, AS6C6264 8kB sram. But believe me its no so simple to build 8085 Board, and the level you want is very very hard Here is the link of my 8085 SBC which use to SOD testing it has work for few time after changing the delay, after that i have no energy too mess with it, but i will like to work with it again in vacation. How do I use 8251 and what is it for To which components do I connect it. The address space will from the CPU be seen as continuous if you do things correct. I guess my at lest 15 years of experience with controllers do not matter much in your book. But to me it looks like you somehow miss the technical knowledge needed to do such a project. Why not Google 8251 and find out Remember, this is your Homework, not for us to do the work for you. 8085 Microprocessor Mini Projects Serial Transmitter ButIve been searching about the serial transmitter but cant relate very much to what i have to do. ![]() You could do some research on how the IOM pin (34) is used together with the in and out instructions. But in your system. You can also have what is named memory-mapped IO. And hence you can use the rest of the address bus to address the UART and PIO. As long as pin 34 (IOM) is low If A15 is 1 the 32K RAM is selected. If A15 is 0 and A14 is 0 the EEPROM is select if A15 is 0 and A14 is 1 the 8K RAM is selected. The PIO and UART has to be mapped as IO device and only active as long IOM is high using the lower part of the address bus for decoding.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |