This a small series of videos that capture my build and minor review of the RC2014 Z80 kit. Today I build up the RAM and CPU Boards

RAM Board: Static RAM chip provides 32K of memory to the Z80. Address line A15 goes through a NOT gate on a 74LS04 to the /CE pin, thus mapping this memory to address 0x8000 – 0xFFFF. The /WE and /OE lines are controlled by ORing the /MREQ with the /WR or /RD from the Z80.

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Z80 CPU Board:

Although this is the most important part of the whole computer, this is the simplest of the PCBs. Basically, just a breakout board for the Z80 processor the only other components are a 3k3 resistor to keep the INT pin held high and header pins

Z80 Technical Manuals and Download Links [ Ссылка ]... [ Ссылка ]...

So, plug in your soldering iron, switch off the brain for half an hour as I waffle on about nothing. Regards Chris AKA AllTheGearNoIdea Build Information RC2014 is a simple 8 bit Z80 based modular computer originally built to run Microsoft BASIC. It is inspired by the home built computers of the late 70s and computer revolution of the early 80s. It is not a clone of anything specific, but there are suggestions of the ZX81, UK101, S100, Superboard II and Apple I in here. It nominally has 8K ROM, 32K RAM, runs at 7.3728MHz and communicates over serial at 115,200 baud. Available From: [ Ссылка ] [ Ссылка ] If your interrested in learning more about the circuit and also other small homebrew computer I highly recomend a visit to Grant Searle website this is amazing work All Credit to Grant's 7-chip Z80 computer [ Ссылка ]...

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