Category: 6502

The 6502 is a processor from the late 70’s,it’s my favorite one and this is all about my adventures with it.

the 6502 category 0

PCB Has Arrived And Is Operational

Good news! The PCB’s arrived last Friday. So I thought I would fire of a quick post to show you the state of this project. First of all here’s the naked PCB’s. This is...

the 6502 category 0

A Keyboard And Other Good Stuff

Before I write about the keyboard here’s some other stuff.. For months now I have been fiddling with design details for TLC-MBC but at the same time just itching to get it onto a...

the 6502 category 0

Channels based I/O For TLC-MBC

I have settled on a final design. The 3 TTL chips are out and the GAL22V10D is in. This will free up some board space and reduce propogation delays. I am now using the...

the 6502 category 0

Video Output For TLC-MBC And An MC Monitor

Wow… has it been four weeks since the last update??? In my defense, as you can see above, I have done a fair bit of work on TLC-MBC, she now has her own screen...

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Serial Communication for TLC-MBC

This has been a long journey to give TLC-MBC the power of serial communication, with obstacles like poor wiring and faulty chips. At the end of my last post, I was internally debating to...

the 6502 category 0

Memory Test Time For TLC-MBC

Now that the memory map for TLC-MBC is sorted, I can put stuff in it and in this session that stuff is memory, both RAM and EEPROM. Sounds easy enough, wire a couple of...

the 6502 category 0

A Memory Map for the TLC-MBC

Before adding ram, ROM and peripheral chips to TLC-MBC, I need to create a memory map so that the 65C02 knows where everything is and it has it’s own space and there are no conflicts.

the 6502 category 0

TLC-MBC: Taking Her First Baby Steps

It’s the week end and it’s time the TLC-MBC came to life! This post will be a little different from most, it will be written in more-or-less real time. This is so that I...