Progress Update on TTL Based CPU Design
By
doener
Hot, fresh, and worth queueing round the block for.
Summary
The article discusses progress on a TTL based CPU design, focusing on display issues and speed optimization. Two codes, the game of life and the Mandelbrot generator, are running on the display. Challenges include data transmission speed causing random junk and corrupt memory, possibly due to a long ribbon cable. The CPU's speed switching capability is utilized for calculations at 2MIPS.
Key quotes
· 3 pulledWe’ve managed to do some more work on the display and I’m really happy to say we’ve got two bits of code running on it, the game of life and the Mandelbrot generator.
We do have a problem with the display, currently sending data faster than 500KHz causes random junk to appear, we also get corrupt memory, we think some of this is due to the long ribbon cable (~500mm in length) so we need to do more investigation on this.
So we’ve been using the speed switching capability of the CPU so that the calculations can be done at 2MIPS and then switch to the slo
You might also wanna read
AI company logos and their unintended anatomical resemblances: A Feedback column
A humorous Feedback column from New Scientist that observes the proliferation of AI company logos and notes a blogger's observation that man
newscientist.com·7h ago
Ableton Push prototype was built from Lego bricks and scavenged music gear parts
Ableton's Push controller was originally prototyped by designer Jesse Terry using Lego bricks and parts scavenged from other music gear. Ter
theverge.com·7h ago
Interior Design Portfolio Brochure Template Review: Tom Sarraipo's 26-Page InDesign Layout
A review and analysis of Tom Sarraipo's 26-page interior design portfolio brochure template for Adobe InDesign. The article highlights how t
weandthecolor.com·10h ago
Ferrari launches first electric hypercar 'Luce' designed by Jony Ive and Marc Newson
Ferrari is undergoing a historic transformation by launching its first fully electric hypercar, the "Luce" (or "Ferrari E"), designed in col
ft.com·11h ago
Bonsai Image 4B: Compact Image Generation Models for Local Devices
Bonsai Image 4B is a family of compact image-generation models released by the company, designed to run high-quality diffusion inference on
prismml.com·14h ago
Study Documents Manipulative 'Dark Patterns' Used by AI Chatbots to Exploit Users
A new study by the Center for Democracy & Technology examines how AI chatbots like ChatGPT, Gemini, and Replika employ manipulative "dark pa
404media.co·17h ago