People's Permacomputer ProjectThinking about ways to prove a computer platform might last a century or so.
Perhaps stress testing disk access?
Opting for microcontrollers that are hardened for solar radiation?
Having lots of cheap backup units in a shielded box?
Chris@permacomputer
Black's equation - Wikipedia https://en.m.wikipedia.org/wiki/Black%27s_equation may be of interest here. Short version: 20nm chips fail much quicker than 150nm chips, so the question to ask is how many times will I need to replace chips in this board over the course of 100 years. Maybe extras can be mounted on the board just like extra buttons get sewn into quality shirts
Black's equation - Wikipedia https://en.m.wikipedia.org/wiki/Black%27s_equation may be of interest here. Short version: 20nm chips fail much quicker than 150nm chips, so the question to ask is how many times will I need to replace chips in this board over the course of 100 years. Maybe extras can be mounted on the board just like extra buttons get sewn into quality shirts
@50htz will have to find out what gate size the ESP32 is -- one of the motivations of choosing 6502s in the beginning was their large gate size, wasn't it...
@50htz 40nm!
Quite small!
Perhaps it is irrelevant--but we should take a look at the microcontrollers out there with the largest fabrication process gate sizes.
@permacomputer Other factors include voltage and clock frequency among other concerns
Also consider the ch32v305. The dev boards are cheap and the chip is only $0.40USD (40¢) ea, so they're almost as cheap as spare buttons
@50htz can we get video out of that easily?
the ESP32 does it with fabgl
@50htz the answer is yes
https://www.olimex.com/Products/Retro-Computers/RVPC/open-source-hardware
2K SRAM : (
@50htz some more links to bother you with xD
https://hackaday.com/2019/02/11/review-ichigojam-single-board-computer/
https://github.com/Stan6314/TinyBasRV/blob/main/Manuals/StartEn.pdf
@permacomputer Ugh. Do NOT take the TinyBasRV start doc as a style guide. It is an assault on the language 😂🤣😂🤣😂