thefoolonthehill
Experienced Member
OK
I've grown slightly impatient waiting for the Replica 1, so I'm going to put that project on hold.
I need some help... I need to know exactly how I could carry out my plan to make a homebrew computer like the Altair 8800 only with a 6502. Of corse, it would now use very much extra hard ware, I plan to have three cards to start with... a CPU card, a RAM card and a front panel card. The ram card and the CPU card would be connected to a 4th minor card which would be for splitting the address/data bus between the front panel, CPU card and the RAM card. A ribbon cable would be connecting the minor card to the front panel which would have lights for memory locations and switches to shift through them, and same for the databus and switches.
So could someone go through this with me and help me know how to shift through memory locations with the switches and write to the RAM. This is a ROMless computer, but I'm putting an option to expand by plugging in a special card with a PROM on it which I could program to have things built in, which you configure if you it in or not with a switch on the motherboard.
How do I connect directly to the static RAM, and last, but not least how the heck do I get all these vintage parts (I.E. 6502, static ram etc)
Thanks for your help!
Stephen - Shiftkey
I've grown slightly impatient waiting for the Replica 1, so I'm going to put that project on hold.
I need some help... I need to know exactly how I could carry out my plan to make a homebrew computer like the Altair 8800 only with a 6502. Of corse, it would now use very much extra hard ware, I plan to have three cards to start with... a CPU card, a RAM card and a front panel card. The ram card and the CPU card would be connected to a 4th minor card which would be for splitting the address/data bus between the front panel, CPU card and the RAM card. A ribbon cable would be connecting the minor card to the front panel which would have lights for memory locations and switches to shift through them, and same for the databus and switches.
So could someone go through this with me and help me know how to shift through memory locations with the switches and write to the RAM. This is a ROMless computer, but I'm putting an option to expand by plugging in a special card with a PROM on it which I could program to have things built in, which you configure if you it in or not with a switch on the motherboard.
How do I connect directly to the static RAM, and last, but not least how the heck do I get all these vintage parts (I.E. 6502, static ram etc)
Thanks for your help!
Stephen - Shiftkey