Wednesday, October 2, 2024

Part 2 - MSX Build Clock Circuit

Next stage is a little more interesting, the clock generation circuit is installed. The computer uses on crystal at 3.58Mhz to clock the CPU and then uses a flip-flop to divide the clock by 2 and that is used for the Programmable Sound Generator (PSG)


The clock circuit

And in real life 


Look we have a glowing LED!! Checked the frequency output with a CRO and good on both outputs. Next is the big stuff, CPU and the System Bus control ICs.







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