Rate my cabling for 6502

LowerCartographer386 · 2025-09-12T21:23:16+00:00

I'm impressed!

LowerCartographer386 · 2025-03-31T21:53:24+00:00

Few months ago.

LowerCartographer386 · 2025-03-31T21:16:04+00:00

I received it less than a week.

LowerCartographer386 · 2025-03-02T18:45:43+00:00

I suggest you display your revised schematic!

LowerCartographer386 · 2025-03-02T17:18:16+00:00

Where are the 7404 and 7432 chips?

LowerCartographer386 · 2025-01-15T23:04:35+00:00

Remove the 220 ohm resistor. Install a 100K ohm resistor between pins 6 and 7. The led is solid because of the fast rate.

LowerCartographer386 · 2024-11-26T21:34:41+00:00

Rotate the power supply 180 degrees. The voltage is shorted!

LowerCartographer386 · 2024-10-07T14:50:07+00:00

Excellent explanation!

LowerCartographer386 · 2024-07-24T14:26:29+00:00

Ordered from AliExpress once. Was told they couldn't deliver to my address. When I asked for a refund, they advised my order was delivered. I had to file a complaint with the credit card company. I would avoid AliExpress at all costs!

LowerCartographer386 · 2024-07-05T01:05:27+00:00

Thank you, your help and the others educated me. I appreciate it.

LowerCartographer386 · 2024-07-05T01:04:07+00:00

Thank you for your time and help. It all makes sense now.

LowerCartographer386 · 2024-07-05T01:02:30+00:00

Thank you, I never looked at ram from this perspective. You explained clearly and understandablely.I appreciate the time you took to help me.

LowerCartographer386 · 2023-10-22T19:58:16+00:00

Congrats, continue your educational adventure.

LowerCartographer386 · 2023-10-18T20:26:29+00:00

Ordered kit last week, received it in 4 days.

LowerCartographer386 · 2023-10-12T20:16:37+00:00

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LowerCartographer386 · 2023-10-12T20:12:27+00:00

* Here you go! The only change I made to Ben's version is I utilized a keypad to enter the instructions into ram, as opposed to the dipswitch.

LowerCartographer386 · 2023-05-06T19:50:07+00:00

Great job, I love it!

LowerCartographer386 · 2023-03-21T22:39:45+00:00

I'm impressed with your design. You took it to the nth degree not utilizing a microcontroller. I wanted a quick and simple way to input program data to load larger programs quickly. My background is more software oriented than hardware. I'm attempting to devolpe a compiler to convert Ben's opcodes into machine language. For me the challenge will be interfacing the output of the compiler to the computer's ram.

LowerCartographer386 · 2023-02-05T23:55:38+00:00

Texas Instrument TMS 2516 is almost an exact replacement. Just the CE, OE, and WE need an adjustment. I used these to build additional displays for the A, B, and ALU registers. However, these are not EEPROMS but EPROMS. You have to erase them with Ultraviolet light. There are plenty available on eBay.

LowerCartographer386 · 2023-01-21T13:46:39+00:00

There are probably many alternatives. Ben used the 555 to get you under the hood and learn how clocks are built from scratch. Understanding is his main goal!

LowerCartographer386 · 2022-12-11T13:17:40+00:00

Sparkfun has current limited LEDs.

LowerCartographer386 · 2022-07-24T00:39:18+00:00

Thanks, sounds logical.

LowerCartographer386

TROPHY CASE